/**
* Method to return a string form of this object for convenience debug.
*
* @return The String form
*/
public String toString() {
return StringUtils.toJVMIDString(this)
+ " [conn="
+ StringUtils.toJVMIDString(conn)
+ ", commitOnRelease="
+ commitOnRelease
+ ", closeOnRelease="
+ closeOnRelease
+ ", closeOnTxnEnd="
+ closeAfterTransactionEnd()
+ "]";
}
/**
* Utility to take a ResultSet and return a ResultObjectFactory for extracting the results,
* assuming that no candidate class is supplied. The QueryResult will return either a result class
* type, or Object/Object[] depending on whether a ResultClass has been defined.
*
* @param storeMgr RDBMS StoreManager
* @param rs The ResultSet
* @param resultClass Result class if required (or null)
* @return The query ResultObjectFactory
*/
public static ResultObjectFactory getResultObjectFactoryForNoCandidateClass(
RDBMSStoreManager storeMgr, ResultSet rs, Class resultClass) {
// No candidate class, so use resultClass or Object/Object[]
Class requiredResultClass = resultClass;
int numberOfColumns = 0;
String[] resultFieldNames = null;
try {
ResultSetMetaData rsmd = rs.getMetaData();
numberOfColumns = rsmd.getColumnCount();
if (requiredResultClass == null) {
if (numberOfColumns == 1) {
requiredResultClass = Object.class;
} else {
requiredResultClass = Object[].class;
}
}
// Generate names to use for the fields based on the column names
resultFieldNames = new String[numberOfColumns];
for (int i = 0; i < numberOfColumns; i++) {
// Use "label" (i.e SQL alias) if specified, otherwise "name"
String colName = rsmd.getColumnName(i + 1);
String colLabel = rsmd.getColumnLabel(i + 1);
if (StringUtils.isWhitespace(colLabel)) {
resultFieldNames[i] = colName;
} else {
resultFieldNames[i] = colLabel;
}
}
} catch (SQLException sqe) {
// Do nothing
}
return new ResultClassROF(storeMgr, requiredResultClass, resultFieldNames);
}
public String toString() {
return "StateManager[pc="
+ StringUtils.toJVMIDString(getObject())
+ ", lifecycle="
+ myLC
+ "]";
}
/**
* Constructs a Microsoft SQL Server adapter based on the given JDBC metadata.
*
* @param metadata the database metadata.
*/
public MSSQLServerAdapter(DatabaseMetaData metadata) {
super(metadata);
reservedKeywords.addAll(StringUtils.convertCommaSeparatedStringToSet(MSSQL_RESERVED_WORDS));
supportedOptions.add(IDENTITY_COLUMNS);
supportedOptions.add(LOCK_OPTION_PLACED_AFTER_FROM);
supportedOptions.add(LOCK_OPTION_PLACED_WITHIN_JOIN);
supportedOptions.add(ANALYSIS_METHODS);
supportedOptions.add(STORED_PROCEDURES);
supportedOptions.remove(BOOLEAN_COMPARISON);
supportedOptions.remove(DEFERRED_CONSTRAINTS);
supportedOptions.remove(FK_DELETE_ACTION_DEFAULT);
supportedOptions.remove(FK_DELETE_ACTION_RESTRICT);
supportedOptions.remove(FK_DELETE_ACTION_NULL);
supportedOptions.remove(FK_UPDATE_ACTION_DEFAULT);
supportedOptions.remove(FK_UPDATE_ACTION_RESTRICT);
supportedOptions.remove(FK_UPDATE_ACTION_NULL);
if (datastoreMajorVersion >= 11) {
// SQLServer 2012+ support these features
supportedOptions.add(SEQUENCES);
supportedOptions.add(ORDERBY_NULLS_DIRECTIVES);
}
if (datastoreMajorVersion >= 12) {
// SQLServer 2014+ support these features (what about earlier?)
supportedOptions.add(OPERATOR_BITWISE_AND);
supportedOptions.add(OPERATOR_BITWISE_OR);
supportedOptions.add(OPERATOR_BITWISE_XOR);
}
}
/**
* Convenience method to retrieve field values from an L2 cached object if they are loaded in that
* object. If the object is not in the L2 cache then just returns, and similarly if the required
* fields aren't available.
*
* @param fieldNumbers Numbers of fields to load from the L2 cache
* @return The fields that couldn't be loaded
*/
protected int[] loadFieldsFromLevel2Cache(int[] fieldNumbers) {
// Only continue if there are fields, and not being deleted/flushed etc
if (fieldNumbers == null
|| fieldNumbers.length == 0
|| myEC.isFlushing()
|| myLC.isDeleted()
|| isDeleting()
|| getExecutionContext().getTransaction().isCommitting()) {
return fieldNumbers;
}
// TODO Drop this check when we're confident that this doesn't affect some use-cases
if (!myEC.getNucleusContext()
.getConfiguration()
.getBooleanProperty(PropertyNames.PROPERTY_CACHE_L2_LOADFIELDS, true)) {
return fieldNumbers;
}
Level2Cache l2cache = myEC.getNucleusContext().getLevel2Cache();
if (l2cache != null && myEC.getNucleusContext().isClassCacheable(cmd)) {
CachedPC<T> cachedPC = l2cache.get(myID);
if (cachedPC != null) {
int[] cacheFieldsToLoad =
ClassUtils.getFlagsSetTo(cachedPC.getLoadedFields(), fieldNumbers, true);
if (cacheFieldsToLoad != null && cacheFieldsToLoad.length > 0) {
if (NucleusLogger.CACHE.isDebugEnabled()) {
NucleusLogger.CACHE.debug(
Localiser.msg(
"026034",
StringUtils.toJVMIDString(getObject()),
myID,
StringUtils.intArrayToString(cacheFieldsToLoad)));
}
L2CacheRetrieveFieldManager l2RetFM = new L2CacheRetrieveFieldManager(this, cachedPC);
this.replaceFields(cacheFieldsToLoad, l2RetFM);
int[] fieldsNotLoaded = l2RetFM.getFieldsNotLoaded();
if (fieldsNotLoaded != null) {
for (int i = 0; i < fieldsNotLoaded.length; i++) {
loadedFields[fieldsNotLoaded[i]] = false;
}
}
}
}
}
return ClassUtils.getFlagsSetTo(loadedFields, fieldNumbers, false);
}
public VersionMetaData setStrategy(String strategy) {
if (StringUtils.isWhitespace(strategy)
|| VersionStrategy.getVersionStrategy(strategy) == null) {
throw new RuntimeException(LOCALISER.msg("044156"));
}
this.versionStrategy = VersionStrategy.getVersionStrategy(strategy);
return this;
}
public SequenceMetaData setAllocationSize(String allocationSize) {
if (!StringUtils.isWhitespace(allocationSize)) {
try {
this.allocationSize = Integer.parseInt(allocationSize);
} catch (NumberFormatException nfe) {
}
}
return this;
}
public SequenceMetaData setInitialValue(String initialValue) {
if (!StringUtils.isWhitespace(initialValue)) {
try {
this.initialValue = Integer.parseInt(initialValue);
} catch (NumberFormatException nfe) {
}
}
return this;
}
/**
* Convenience method to create a new PreparedStatement for a query.
*
* @param conn The Connection to use for the statement
* @param stmtText Statement text
* @param resultSetType Type of result set
* @param resultSetConcurrency Concurrency for the result set
* @return The PreparedStatement
* @throws SQLException thrown if an error occurs creating the statement
*/
public PreparedStatement getStatementForQuery(
ManagedConnection conn, String stmtText, String resultSetType, String resultSetConcurrency)
throws SQLException {
Connection c = (Connection) conn.getConnection();
if (supportsBatching) {
// Check for a waiting batched statement that is ready for processing
ConnectionStatementState state = getConnectionStatementState(conn);
if (state != null && state.processable) {
// Process the batch statement before returning our new query statement
processConnectionStatement(conn);
}
}
// Create a new PreparedStatement for this query
PreparedStatement ps = null;
if (resultSetType != null || resultSetConcurrency != null) {
int rsTypeValue = ResultSet.TYPE_FORWARD_ONLY;
if (resultSetType != null) {
if (resultSetType.equals("scroll-sensitive")) {
rsTypeValue = ResultSet.TYPE_SCROLL_SENSITIVE;
} else if (resultSetType.equals("scroll-insensitive")) {
rsTypeValue = ResultSet.TYPE_SCROLL_INSENSITIVE;
}
}
int rsConcurrencyValue = ResultSet.CONCUR_READ_ONLY;
if (resultSetConcurrency != null && resultSetConcurrency.equals("updateable")) {
rsConcurrencyValue = ResultSet.CONCUR_UPDATABLE;
}
ps = c.prepareStatement(stmtText, rsTypeValue, rsConcurrencyValue);
ps
.clearBatch(); // In case using statement caching and given one with batched statements
// left hanging (C3P0)
} else {
ps = c.prepareStatement(stmtText);
ps
.clearBatch(); // In case using statement caching and given one with batched statements
// left hanging (C3P0)
}
if (queryTimeout > 0) {
// Apply any query timeout
ps.setQueryTimeout(queryTimeout / 1000); // queryTimeout is in milliseconds
}
if (NucleusLogger.DATASTORE.isDebugEnabled()) {
NucleusLogger.DATASTORE.debug(LOCALISER.msg("052110", StringUtils.toJVMIDString(ps)));
}
if (!jdbcStatements) {
// Wrap with our parameter logger
ps = new ParamLoggingPreparedStatement(ps, stmtText);
((ParamLoggingPreparedStatement) ps).setParamsInAngleBrackets(paramValuesInBrackets);
}
return ps;
}
public String toString() {
return "StmtState : stmt="
+ StringUtils.toJVMIDString(stmt)
+ " sql="
+ stmtText
+ " batch="
+ batchSize
+ " closeOnProcess="
+ closeStatementOnProcess;
}
/**
* Convenience method to update a Level2 cached version of this object if cacheable and has not
* been modified during this transaction.
*
* @param fieldNumbers Numbers of fields to update in L2 cached object
*/
protected void updateLevel2CacheForFields(int[] fieldNumbers) {
String updateMode = (String) myEC.getProperty(PropertyNames.PROPERTY_CACHE_L2_UPDATE_MODE);
if (updateMode != null && updateMode.equalsIgnoreCase("commit-only")) {
return;
}
if (fieldNumbers == null || fieldNumbers.length == 0) {
return;
}
Level2Cache l2cache = myEC.getNucleusContext().getLevel2Cache();
if (l2cache != null
&& myEC.getNucleusContext().isClassCacheable(cmd)
&& !myEC.isObjectModifiedInTransaction(myID)) {
CachedPC<T> cachedPC = l2cache.get(myID);
if (cachedPC != null) {
// This originally just updated the L2 cache for fields where the L2 cache didn't have a
// value for that field, like this
/*
int[] cacheFieldsToLoad = ClassUtils.getFlagsSetTo(cachedPC.getLoadedFields(), fieldNumbers, false);
if (cacheFieldsToLoad == null || cacheFieldsToLoad.length == 0)
{
return;
}
*/
int[] cacheFieldsToLoad = fieldNumbers;
CachedPC copyCachedPC = cachedPC.getCopy();
if (NucleusLogger.CACHE.isDebugEnabled()) {
NucleusLogger.CACHE.debug(
Localiser.msg(
"026033",
StringUtils.toJVMIDString(getObject()),
myID,
StringUtils.intArrayToString(cacheFieldsToLoad)));
}
provideFields(cacheFieldsToLoad, new L2CachePopulateFieldManager(this, copyCachedPC));
// Replace the current L2 cached object with this one
myEC.getNucleusContext().getLevel2Cache().put(getInternalObjectId(), copyCachedPC);
}
}
}
/**
* Convenience method to process the currently waiting statement for the passed Connection. Only
* processes the statement if it is in processable state.
*
* @param conn The connection
* @return The return codes from the statement batch
* @throws SQLException if an error occurs processing the batch
*/
protected int[] processConnectionStatement(ManagedConnection conn) throws SQLException {
ConnectionStatementState state = getConnectionStatementState(conn);
if (state == null || !state.processable) {
return null;
}
long startTime = System.currentTimeMillis();
if (NucleusLogger.DATASTORE_NATIVE.isDebugEnabled()) {
if (state.stmt instanceof ParamLoggingPreparedStatement) {
NucleusLogger.DATASTORE_NATIVE.debug(
((ParamLoggingPreparedStatement) state.stmt).getStatementWithParamsReplaced());
} else {
NucleusLogger.DATASTORE_NATIVE.debug(state.stmtText);
}
}
int[] ind = state.stmt.executeBatch();
state.stmt.clearBatch();
if (NucleusLogger.DATASTORE.isDebugEnabled()) {
NucleusLogger.DATASTORE.debug(
LOCALISER.msg(
"045001",
"" + (System.currentTimeMillis() - startTime),
StringUtils.intArrayToString(ind),
StringUtils.toJVMIDString(state.stmt)));
}
// Remove the current connection statement
removeConnectionStatementState(conn);
// Close the statement if it is registered for closing after processing
if (state.closeStatementOnProcess) {
state.stmt.close();
}
return ind;
}
static {
try {
Class.forName(driverName);
monitorConfig.loadMonitorParam();
QUERY_LOG_TABLE_NAME = monitorConfig.getQueryLogResultTable();
if (StringUtils.isEmpty(QUERY_LOG_TABLE_NAME)) {
logger.error(
"table name not defined ,please set param [query.log.parse.result.table] in kylin.properties");
}
} catch (Exception e) {
e.printStackTrace();
}
}
protected void setUp() throws Exception {
super.setUp();
if (runTestsForDatastore()) {
PersistenceManager pm = pmf.getPersistenceManager();
Transaction tx = pm.currentTransaction();
try {
tx.begin();
pm.newQuery(SamplePoint.class).deletePersistentAll();
pm.newQuery(SampleLineString.class).deletePersistentAll();
pm.newQuery(SamplePolygon.class).deletePersistentAll();
pm.newQuery(SampleGeometryCollection.class).deletePersistentAll();
} finally {
tx.commit();
}
Connection sqlConn = null;
try {
tx.begin();
sqlConn = (Connection) pm.getDataStoreConnection();
String connUrl = pmf.getConnectionURL().toLowerCase();
String fileName = "sample_jts_postgis.sql";
if (connUrl.contains("mysql") || connUrl.contains("mariadb")) {
fileName = "sample_jts_mysql.sql";
}
File file =
new File(
PgGeometryMySQLTest.class
.getResource("/org/datanucleus/samples/data/" + fileName)
.toURI());
String s = "";
InputStream is = new FileInputStream(file);
int c;
while ((c = is.read()) != -1) {
s += (char) c;
}
String ss[] = StringUtils.split(s, ";");
for (int i = 0; i < ss.length; i++) {
sqlConn.createStatement().execute(ss[i]);
}
is.close();
} finally {
sqlConn.close();
tx.commit();
}
}
}
/**
* Initialisation method. This should be called AFTER using the populate method if you are going
* to use populate. It creates the internal convenience arrays etc needed for normal operation.
*/
public void initialise(ClassLoaderResolver clr, MetaDataManager mmgr) {
if (hasExtension("field-name")) {
// User has provided extension "field-name" meaning that we store the version in the column
// for the specified field (like in JPA)
String val = getValueForExtension("field-name");
if (!StringUtils.isWhitespace(val)) {
this.fieldName = val;
this.columnName = null;
}
}
if (fieldName == null) {
// Cater for user specifying column name, or column
if (columnMetaData == null && columnName != null) {
columnMetaData = new ColumnMetaData();
columnMetaData.setName(columnName);
columnMetaData.parent = this;
}
// Interpret the "indexed" value to create our IndexMetaData where it wasn't specified that
// way
if (indexMetaData == null
&& columnMetaData != null
&& indexed != null
&& indexed != IndexedValue.FALSE) {
indexMetaData = new IndexMetaData();
indexMetaData.setUnique(indexed == IndexedValue.UNIQUE);
indexMetaData.addColumn(columnMetaData.getName());
indexMetaData.parent = this;
}
} else {
if (getParent() instanceof AbstractClassMetaData) {
AbstractMemberMetaData vermmd =
((AbstractClassMetaData) getParent()).getMetaDataForMember(fieldName);
if (vermmd != null && java.util.Date.class.isAssignableFrom(vermmd.getType())) {
NucleusLogger.GENERAL.debug(
"Setting version-strategy of field "
+ vermmd.getFullFieldName()
+ " to DATE_TIME since is Date-based");
versionStrategy = VersionStrategy.DATE_TIME;
}
}
}
}
/**
* Method to execute a PreparedStatement (using PreparedStatement.execute()). Prints logging
* information about timings.
*
* @param ec Execution Context
* @param conn The connection (required since the one on PreparedStatement is not always the same
* so we can't use it)
* @param stmt The statement text
* @param ps The Prepared Statement
* @return The numer of rows affected (as per PreparedStatement.execute)
* @throws SQLException Thrown if an error occurs
*/
public boolean executeStatement(
ExecutionContext ec, ManagedConnection conn, String stmt, PreparedStatement ps)
throws SQLException {
if (supportsBatching) {
// Check for a waiting batched statement that is ready for processing
ConnectionStatementState state = getConnectionStatementState(conn);
if (state != null && state.processable) {
// Process the batch statement before returning our new query statement
processConnectionStatement(conn);
}
}
// Process the normal execute statement
long startTime = System.currentTimeMillis();
if (NucleusLogger.DATASTORE_NATIVE.isDebugEnabled()) {
if (ps instanceof ParamLoggingPreparedStatement) {
NucleusLogger.DATASTORE_NATIVE.debug(
((ParamLoggingPreparedStatement) ps).getStatementWithParamsReplaced());
} else {
NucleusLogger.DATASTORE_NATIVE.debug(stmt);
}
}
boolean flag = ps.execute();
if (ec != null && ec.getStatistics() != null) {
// Add to statistics
ec.getStatistics().incrementNumWrites();
}
ps.clearBatch();
if (NucleusLogger.DATASTORE_PERSIST.isDebugEnabled()) {
NucleusLogger.DATASTORE_PERSIST.debug(
LOCALISER.msg(
"045002",
"" + (System.currentTimeMillis() - startTime),
StringUtils.toJVMIDString(ps)));
}
return flag;
}
/**
* Convenience method to close a PreparedStatement. If the statement is currently being used as a
* batch, will register it for closing when executing the batch
*
* @param conn The Connection
* @param ps The PreparedStatement
* @throws SQLException if an error occurs closing the statement
*/
public void closeStatement(ManagedConnection conn, PreparedStatement ps) throws SQLException {
ConnectionStatementState state = getConnectionStatementState(conn);
if (state != null && state.stmt == ps) {
// Statement to be closed is the current batch, so register it for closing when it gets
// processed
state.closeStatementOnProcess = true;
} else {
try {
if (NucleusLogger.DATASTORE.isDebugEnabled()) {
NucleusLogger.DATASTORE.debug(LOCALISER.msg("052110", StringUtils.toJVMIDString(ps)));
}
ps.close();
} catch (SQLException sqle) {
// workaround for DBCP bug: even though PreparedStatement.close()
// is defined as having no effect if already closed, DBCP
// will throw SQLException
if (!sqle.getMessage().equals("Already closed")) {
throw sqle;
}
}
}
}
public SequenceMetaData setDatastoreSequence(String datastoreSequence) {
this.datastoreSequence =
(StringUtils.isWhitespace(datastoreSequence) ? null : datastoreSequence);
return this;
}
public VersionMetaData setColumnName(String columnName) {
this.columnName = (StringUtils.isWhitespace(columnName) ? null : columnName);
return this;
}
/**
* Convenience method to create a new PreparedStatement for an update.
*
* @param conn The Connection to use for the statement
* @param stmtText Statement text
* @param batchable Whether this statement is batchable. Whether we will process the statement
* before any other statement
* @param getGeneratedKeysFlag whether to request getGeneratedKeys for this statement
* @return The PreparedStatement
* @throws SQLException thrown if an error occurs creating the statement
*/
public PreparedStatement getStatementForUpdate(
ManagedConnection conn, String stmtText, boolean batchable, boolean getGeneratedKeysFlag)
throws SQLException {
Connection c = (Connection) conn.getConnection();
if (supportsBatching) {
ConnectionStatementState state = getConnectionStatementState(conn);
if (state != null) {
if (state.processable) {
// We have a batchable statement in the queue that could be processed now if necessary
if (!batchable) {
// This new statement isnt batchable so process the existing one before returning our
// new statement
processConnectionStatement(conn);
} else {
// Check if we could batch onto this existing statement
if (state.stmtText.equals(stmtText)) {
// We can batch onto this statement
if (maxBatchSize == -1 || state.batchSize < maxBatchSize) {
state.batchSize++;
state.processable =
false; // Have to wait til we process this part til processable again
if (NucleusLogger.DATASTORE_PERSIST.isDebugEnabled()) {
NucleusLogger.DATASTORE_PERSIST.debug(
LOCALISER.msg("052100", stmtText, "" + state.batchSize));
}
return state.stmt;
} else {
// Reached max batch size so process it now and start again for this one
if (NucleusLogger.DATASTORE_PERSIST.isDebugEnabled()) {
NucleusLogger.DATASTORE_PERSIST.debug(LOCALISER.msg("052101", state.stmtText));
}
processConnectionStatement(conn);
}
} else {
// We cant batch using the current batch statement so process it first and return our
// new one
processConnectionStatement(conn);
}
}
} else {
if (batchable) {
// The current statement is being batched so we cant batch this since cant process the
// current statement now
if (NucleusLogger.DATASTORE_PERSIST.isDebugEnabled()) {
NucleusLogger.DATASTORE_PERSIST.debug(
LOCALISER.msg("052102", state.stmtText, stmtText));
}
batchable = false;
}
}
}
}
PreparedStatement ps =
(getGeneratedKeysFlag
? c.prepareStatement(stmtText, Statement.RETURN_GENERATED_KEYS)
: c.prepareStatement(stmtText));
ps
.clearBatch(); // In case using statement caching and given one with batched statements left
// hanging (C3P0)
if (!jdbcStatements) {
// Wrap with our parameter logger
ps = new ParamLoggingPreparedStatement(ps, stmtText);
((ParamLoggingPreparedStatement) ps).setParamsInAngleBrackets(paramValuesInBrackets);
}
if (NucleusLogger.DATASTORE.isDebugEnabled()) {
NucleusLogger.DATASTORE.debug(LOCALISER.msg("052109", ps, StringUtils.toJVMIDString(c)));
}
if (batchable && supportsBatching) {
// This statement is batchable so save it as the current batchable
if (NucleusLogger.DATASTORE_PERSIST.isDebugEnabled()) {
NucleusLogger.DATASTORE_PERSIST.debug(LOCALISER.msg("052103", stmtText));
}
ConnectionStatementState state = new ConnectionStatementState();
state.stmt = ps;
state.stmtText = stmtText;
state.batchSize = 1;
setConnectionStatementState(conn, state);
}
return ps;
}
/**
* Method to populate any defaults, and check the validity of the MetaData.
*
* @param clr ClassLoaderResolver to use for loading any key/value types
* @param primary the primary ClassLoader to use (or null)
* @param mmgr MetaData manager
*/
public void populate(ClassLoaderResolver clr, ClassLoader primary, MetaDataManager mmgr) {
AbstractMemberMetaData mmd = (AbstractMemberMetaData) parent;
if (!StringUtils.isWhitespace(key.type) && key.type.indexOf(',') > 0) {
throw new InvalidMetaDataException(LOCALISER, "044143", mmd.getName(), mmd.getClassName());
}
if (!StringUtils.isWhitespace(value.type) && value.type.indexOf(',') > 0) {
throw new InvalidMetaDataException(LOCALISER, "044144", mmd.getName(), mmd.getClassName());
}
ApiAdapter api = mmgr.getApiAdapter();
// Make sure the type in "key", "value" is set
key.populate(
((AbstractMemberMetaData) parent).getAbstractClassMetaData().getPackageName(),
clr,
primary,
mmgr);
value.populate(
((AbstractMemberMetaData) parent).getAbstractClassMetaData().getPackageName(),
clr,
primary,
mmgr);
// Check the field type and see if it is castable to a Map
Class field_type = getMemberMetaData().getType();
if (!java.util.Map.class.isAssignableFrom(field_type)) {
throw new InvalidMetaDataException(
LOCALISER, "044145", getFieldName(), getMemberMetaData().getClassName(false));
}
if (java.util.Properties.class.isAssignableFrom(field_type)) {
// Properties defaults to <String, String>
if (key.type == null) {
key.type = String.class.getName();
}
if (value.type == null) {
value.type = String.class.getName();
}
}
// "key-type"
if (key.type == null) {
throw new InvalidMetaDataException(
LOCALISER, "044146", getFieldName(), getMemberMetaData().getClassName(false));
}
// Check that the key type exists
Class keyTypeClass = null;
try {
keyTypeClass = clr.classForName(key.type, primary);
} catch (ClassNotResolvedException cnre) {
try {
// Maybe the user specified a java.lang class without fully-qualifying it
// This is beyond the scope of the JDO spec which expects java.lang cases to be
// fully-qualified
keyTypeClass = clr.classForName(ClassUtils.getJavaLangClassForType(key.type), primary);
} catch (ClassNotResolvedException cnre2) {
throw new InvalidMetaDataException(
LOCALISER, "044147", getFieldName(), getMemberMetaData().getClassName(false), key.type);
}
}
if (!keyTypeClass.getName().equals(key.type)) {
// The value-type has been resolved from what was specified in the MetaData - update to the
// fully-qualified name
NucleusLogger.METADATA.info(
LOCALISER.msg(
"044148",
getFieldName(),
getMemberMetaData().getClassName(false),
key.type,
keyTypeClass.getName()));
key.type = keyTypeClass.getName();
}
// "embedded-key"
if (key.embedded == null) {
// Assign default for "embedded-key" based on 18.13.2 of JDO 2 spec
if (mmgr.getNucleusContext().getTypeManager().isDefaultEmbeddedType(keyTypeClass)) {
key.embedded = Boolean.TRUE;
} else if (api.isPersistable(keyTypeClass)
|| Object.class.isAssignableFrom(keyTypeClass)
|| keyTypeClass.isInterface()) {
key.embedded = Boolean.FALSE;
} else {
key.embedded = Boolean.TRUE;
}
}
if (Boolean.FALSE.equals(key.embedded)) {
// If the user has set a non-PC/non-Interface as not embedded, correct it since not supported.
// Note : this fails when using in the enhancer since not yet PC
if (!api.isPersistable(keyTypeClass)
&& !keyTypeClass.isInterface()
&& keyTypeClass != java.lang.Object.class) {
key.embedded = Boolean.TRUE;
}
}
KeyMetaData keymd = ((AbstractMemberMetaData) parent).getKeyMetaData();
if (keymd != null && keymd.getEmbeddedMetaData() != null) {
// If the user has specified <embedded>, set to true
key.embedded = Boolean.TRUE;
}
// "value-type"
if (value.type == null) {
throw new InvalidMetaDataException(
LOCALISER, "044149", getFieldName(), getMemberMetaData().getClassName(false));
}
// Check that the value-type exists
Class valueTypeClass = null;
try {
valueTypeClass = clr.classForName(value.type);
} catch (ClassNotResolvedException cnre) {
try {
// Maybe the user specified a java.lang class without fully-qualifying it
// This is beyond the scope of the JDO spec which expects java.lang cases to be
// fully-qualified
valueTypeClass = clr.classForName(ClassUtils.getJavaLangClassForType(value.type));
} catch (ClassNotResolvedException cnre2) {
throw new InvalidMetaDataException(
LOCALISER,
"044150",
getFieldName(),
getMemberMetaData().getClassName(false),
value.type);
}
}
if (!valueTypeClass.getName().equals(value.type)) {
// The value-type has been resolved from what was specified in the MetaData - update to the
// fully-qualified name
NucleusLogger.METADATA.info(
LOCALISER.msg(
"044151",
getFieldName(),
getMemberMetaData().getClassName(false),
value.type,
valueTypeClass.getName()));
value.type = valueTypeClass.getName();
}
// "embedded-value"
if (value.embedded == null) {
// Assign default for "embedded-value" based on 18.13.2 of JDO 2 spec
if (mmgr.getNucleusContext().getTypeManager().isDefaultEmbeddedType(valueTypeClass)) {
value.embedded = Boolean.TRUE;
} else if (api.isPersistable(valueTypeClass)
|| Object.class.isAssignableFrom(valueTypeClass)
|| valueTypeClass.isInterface()) {
value.embedded = Boolean.FALSE;
} else {
value.embedded = Boolean.TRUE;
}
}
if (value.embedded == Boolean.FALSE) {
// If the user has set a non-PC/non-Interface as not embedded, correct it since not supported.
// Note : this fails when using in the enhancer since not yet PC
if (!api.isPersistable(valueTypeClass)
&& !valueTypeClass.isInterface()
&& valueTypeClass != java.lang.Object.class) {
value.embedded = Boolean.TRUE;
}
}
ValueMetaData valuemd = ((AbstractMemberMetaData) parent).getValueMetaData();
if (valuemd != null && valuemd.getEmbeddedMetaData() != null) {
// If the user has specified <embedded>, set to true
value.embedded = Boolean.TRUE;
}
key.classMetaData = mmgr.getMetaDataForClassInternal(keyTypeClass, clr);
value.classMetaData = mmgr.getMetaDataForClassInternal(valueTypeClass, clr);
// Cater for Key with mapped-by needing to be PK (for JPA)
if (keymd != null
&& keymd.mappedBy != null
&& keymd.mappedBy.equals("#PK")) // Special value set by JPAMetaDataHandler
{
// Need to set the mapped-by of <key> to be the PK of the <value>
if (value.classMetaData.getNoOfPrimaryKeyMembers() != 1) {
// TODO Localise this
throw new NucleusUserException(
"DataNucleus does not support use of <map-key> with no name field when the"
+ " value class has a composite primary key");
}
int[] valuePkFieldNums = value.classMetaData.getPKMemberPositions();
keymd.mappedBy =
value.classMetaData.getMetaDataForManagedMemberAtAbsolutePosition(valuePkFieldNums[0])
.name;
}
// Make sure anything in the superclass is populated too
super.populate(clr, primary, mmgr);
setPopulated();
}
/**
* Method to execute a PreparedStatement update. Prints logging information about timings.
*
* @param conn The connection (required since the one on PreparedStatement is not always the same
* so we cant use it)
* @param stmt The statement text
* @param ps The Prepared Statement
* @param processNow Whether to process this statement now (only applies if is batched)
* @return The numer of rows affected (as per PreparedStatement.executeUpdate)
* @throws SQLException Thrown if an error occurs
*/
public int[] executeStatementUpdate(
ExecutionContext ec,
ManagedConnection conn,
String stmt,
PreparedStatement ps,
boolean processNow)
throws SQLException {
ConnectionStatementState state = getConnectionStatementState(conn);
if (state != null) {
if (state.stmt == ps) {
// Mark as processable
if (NucleusLogger.DATASTORE_PERSIST.isDebugEnabled()) {
NucleusLogger.DATASTORE_PERSIST.debug(
LOCALISER.msg("052104", state.stmtText, "" + state.batchSize));
}
state.processable = true;
state.stmt.addBatch();
if (processNow) {
// Process the batch now
state.closeStatementOnProcess =
false; // user method has requested execution so they can close it themselves now
return processConnectionStatement(conn);
} else {
// Leave processing til later
return null;
}
} else {
// There is a waiting batch yet it is a different statement, so process that one now since
// we need
// our statement executing
processConnectionStatement(conn);
}
}
// Process the normal update statement
long startTime = System.currentTimeMillis();
if (NucleusLogger.DATASTORE_NATIVE.isDebugEnabled()) {
if (ps instanceof ParamLoggingPreparedStatement) {
NucleusLogger.DATASTORE_NATIVE.debug(
((ParamLoggingPreparedStatement) ps).getStatementWithParamsReplaced());
} else {
NucleusLogger.DATASTORE_NATIVE.debug(stmt);
}
}
int ind = ps.executeUpdate();
if (ec != null && ec.getStatistics() != null) {
// Add to statistics
ec.getStatistics().incrementNumWrites();
}
ps.clearBatch();
if (NucleusLogger.DATASTORE_PERSIST.isDebugEnabled()) {
NucleusLogger.DATASTORE_PERSIST.debug(
LOCALISER.msg(
"045001",
"" + (System.currentTimeMillis() - startTime),
"" + ind,
StringUtils.toJVMIDString(ps)));
}
return new int[] {ind};
}
public String getObjectAsPrintable() {
return StringUtils.toJVMIDString(getObject());
}
/** Test of the retrieval of columns. */
public void testColumnRetrieval() {
addClassesToSchema(new Class[] {SchemaClass1.class, SchemaClass2.class});
PersistenceManager pm = pmf.getPersistenceManager();
RDBMSStoreManager databaseMgr = (RDBMSStoreManager) storeMgr;
StoreSchemaHandler handler = databaseMgr.getSchemaHandler();
ClassLoaderResolver clr = storeMgr.getNucleusContext().getClassLoaderResolver(null);
Connection con =
(Connection)
databaseMgr
.getConnection(((JDOPersistenceManager) pm).getExecutionContext())
.getConnection();
// Retrieve and check the table for SchemaClass1
DatastoreClass table1 = databaseMgr.getDatastoreClass(SchemaClass1.class.getName(), clr);
RDBMSTableInfo tableInfo1 =
(RDBMSTableInfo) handler.getSchemaData(con, "columns", new Object[] {table1});
assertEquals(
"Number of columns for table " + table1 + " is wrong", 4, tableInfo1.getNumberOfChildren());
Iterator colsIter = tableInfo1.getChildren().iterator();
Collection colNamesPresent = new HashSet();
colNamesPresent.add("TABLE1_ID1");
colNamesPresent.add("TABLE1_ID2");
colNamesPresent.add("NAME");
colNamesPresent.add("OTHER_ID");
while (colsIter.hasNext()) {
RDBMSColumnInfo colInfo = (RDBMSColumnInfo) colsIter.next();
if (colInfo.getColumnName().equals("TABLE1_ID1")) {
colNamesPresent.remove(colInfo.getColumnName());
}
if (colInfo.getColumnName().equals("TABLE1_ID2")) {
colNamesPresent.remove(colInfo.getColumnName());
}
if (colInfo.getColumnName().equals("NAME")) {
colNamesPresent.remove(colInfo.getColumnName());
}
if (colInfo.getColumnName().equals("OTHER_ID")) {
colNamesPresent.remove(colInfo.getColumnName());
}
}
assertTrue(
"Some columns expected were not present in the datastore table : "
+ StringUtils.collectionToString(colNamesPresent),
colNamesPresent.size() == 0);
// Retrieve and check the table for SchemaClass2
DatastoreClass table2 = databaseMgr.getDatastoreClass(SchemaClass2.class.getName(), clr);
RDBMSTableInfo tableInfo2 =
(RDBMSTableInfo) handler.getSchemaData(con, "columns", new Object[] {table2});
assertEquals(
"Number of columns for table " + table2 + " is wrong", 3, tableInfo2.getNumberOfChildren());
colsIter = tableInfo2.getChildren().iterator();
colNamesPresent.clear();
colNamesPresent.add("TABLE2_ID");
colNamesPresent.add("NAME");
colNamesPresent.add("VALUE");
while (colsIter.hasNext()) {
RDBMSColumnInfo colInfo = (RDBMSColumnInfo) colsIter.next();
if (colInfo.getColumnName().equals("TABLE2_ID")) {
colNamesPresent.remove(colInfo.getColumnName());
}
if (colInfo.getColumnName().equals("NAME")) {
colNamesPresent.remove(colInfo.getColumnName());
assertEquals(
"Length of column " + colInfo.getColumnName() + " has incorrect length",
20,
colInfo.getColumnSize());
}
if (colInfo.getColumnName().equals("VALUE")) {
colNamesPresent.remove(colInfo.getColumnName());
}
}
assertTrue(
"Some columns expected were not present in the datastore table : "
+ StringUtils.collectionToString(colNamesPresent),
colNamesPresent.size() == 0);
// Now check retrieval of a column for a table
RDBMSColumnInfo colInfo =
(RDBMSColumnInfo) handler.getSchemaData(con, "column", new Object[] {table2, "VALUE"});
assertNotNull("Column VALUE for table " + table2 + " was not found", colInfo);
assertEquals("Column name is wrong", "VALUE", colInfo.getColumnName());
}
/** Method called at the end of the class. */
public void visitEnd() {
AbstractClassMetaData cmd = enhancer.getClassMetaData();
if (cmd.getPersistenceModifier() == ClassPersistenceModifier.PERSISTENCE_CAPABLE) {
// Add any new fields
List fields = enhancer.getFieldsList();
Iterator fieldsIter = fields.iterator();
while (fieldsIter.hasNext()) {
ClassField field = (ClassField) fieldsIter.next();
if (field.getName().equals(enhancer.getNamer().getDetachedStateFieldName())
&& hasDetachedState) {
// No need to add this field since exists
continue;
}
if (DataNucleusEnhancer.LOGGER.isDebugEnabled()) {
DataNucleusEnhancer.LOGGER.debug(
Localiser.msg("005021", ((Class) field.getType()).getName() + " " + field.getName()));
}
cv.visitField(
field.getAccess(),
field.getName(),
Type.getDescriptor((Class) field.getType()),
null,
null);
}
if (!hasStaticInitialisation) {
// Add a static initialisation block for the class since nothing added yet
InitClass method = InitClass.getInstance(enhancer);
method.initialise(cv);
method.execute();
method.close();
}
if (!hasDefaultConstructor
&& enhancer.hasOption(ClassEnhancer.OPTION_GENERATE_DEFAULT_CONSTRUCTOR)) {
// Add a default constructor
DefaultConstructor ctr = DefaultConstructor.getInstance(enhancer);
ctr.initialise(cv);
ctr.execute();
ctr.close();
}
// Add any new methods
List methods = enhancer.getMethodsList();
Iterator<ClassMethod> methodsIter = methods.iterator();
while (methodsIter.hasNext()) {
ClassMethod method = methodsIter.next();
method.initialise(cv);
method.execute();
method.close();
}
if (Serializable.class.isAssignableFrom(enhancer.getClassBeingEnhanced())) {
// Class is Serializable
if (!hasSerialVersionUID) {
// Needs "serialVersionUID" field
Long uid = null;
try {
uid =
(Long)
AccessController.doPrivileged(
new PrivilegedAction() {
public Object run() {
return Long.valueOf(
ObjectStreamClass.lookup(enhancer.getClassBeingEnhanced())
.getSerialVersionUID());
}
});
} catch (Throwable e) {
DataNucleusEnhancer.LOGGER.warn(StringUtils.getStringFromStackTrace(e));
}
ClassField cf =
new ClassField(
enhancer,
enhancer.getNamer().getSerialVersionUidFieldName(),
Opcodes.ACC_PRIVATE | Opcodes.ACC_STATIC | Opcodes.ACC_FINAL,
long.class,
uid);
if (DataNucleusEnhancer.LOGGER.isDebugEnabled()) {
DataNucleusEnhancer.LOGGER.debug(
Localiser.msg("005021", ((Class) cf.getType()).getName() + " " + cf.getName()));
}
cv.visitField(
cf.getAccess(),
cf.getName(),
Type.getDescriptor((Class) cf.getType()),
null,
cf.getInitialValue());
}
// The dnPreSerialize method need be called only once for a persistent instance. The
// writeObject method in the least-derived
// pc class that implements Serializable in the inheritance hierarchy needs to be modified
// or generated to call it.
if (cmd.getSuperAbstractClassMetaData() == null && !hasWriteObject) {
// User hasn't provided their own writeObject, so provide the default but with a call to
// dnPreSerialize first
ClassMethod method = WriteObject.getInstance(enhancer);
method.initialise(cv);
method.execute();
method.close();
}
}
// Add dnGetXXX, dnSetXXX for each of the (managed) fields/properties
AbstractMemberMetaData[] fmds = cmd.getManagedMembers();
for (int i = 0; i < fmds.length; i++) {
if (fmds[i].getPersistenceModifier() == FieldPersistenceModifier.NONE) {
// Field/Property is not persistent so ignore
continue;
}
byte persistenceFlags = fmds[i].getPersistenceFlags();
ClassMethod getMethod = null;
ClassMethod setMethod = null;
if (fmds[i] instanceof PropertyMetaData) {
// dnGetXXX, dnSetXXX for property are generated when processing existing getXXX, setXXX
// methods
} else {
// Generate dnGetXXX, dnSetXXX for field
if ((persistenceFlags & Persistable.MEDIATE_READ) == Persistable.MEDIATE_READ) {
getMethod = new GetViaMediate(enhancer, fmds[i]);
} else if ((persistenceFlags & Persistable.CHECK_READ) == Persistable.CHECK_READ) {
getMethod = new GetViaCheck(enhancer, fmds[i]);
} else {
getMethod = new GetNormal(enhancer, fmds[i]);
}
if ((persistenceFlags & Persistable.MEDIATE_WRITE) == Persistable.MEDIATE_WRITE) {
setMethod = new SetViaMediate(enhancer, fmds[i]);
} else if ((persistenceFlags & Persistable.CHECK_WRITE) == Persistable.CHECK_WRITE) {
setMethod = new SetViaCheck(enhancer, fmds[i]);
} else {
setMethod = new SetNormal(enhancer, fmds[i]);
}
}
if (getMethod != null) {
getMethod.initialise(cv);
getMethod.execute();
getMethod.close();
}
if (setMethod != null) {
setMethod.initialise(cv);
setMethod.execute();
setMethod.close();
}
}
}
cv.visitEnd();
}
/**
* Utility to create the application identity columns and mapping. Uses the id mapping of the
* specified class table and copies the mappings and columns, whilst retaining the passed
* preferences for column namings. This is used to copy the PK mappings of a superclass table so
* we have the same PK.
*
* @param columnContainer The container of column MetaData with any namings
* @param refTable The table that we use as reference
* @param clr The ClassLoaderResolver
* @param cmd The ClassMetaData
*/
final void addApplicationIdUsingClassTableId(
ColumnMetaDataContainer columnContainer,
DatastoreClass refTable,
ClassLoaderResolver clr,
AbstractClassMetaData cmd) {
ColumnMetaData[] userdefinedCols = null;
int nextUserdefinedCol = 0;
if (columnContainer != null) {
userdefinedCols = columnContainer.getColumnMetaData();
}
pkMappings = new JavaTypeMapping[cmd.getPKMemberPositions().length];
for (int i = 0; i < cmd.getPKMemberPositions().length; i++) {
AbstractMemberMetaData mmd =
cmd.getMetaDataForManagedMemberAtAbsolutePosition(cmd.getPKMemberPositions()[i]);
JavaTypeMapping mapping = refTable.getMemberMapping(mmd);
if (mapping == null) {
// probably due to invalid metadata defined by the user
throw new NucleusUserException(
"Cannot find mapping for field "
+ mmd.getFullFieldName()
+ " in table "
+ refTable.toString()
+ " "
+ StringUtils.collectionToString(refTable.getColumns()));
}
JavaTypeMapping masterMapping =
storeMgr.getMappingManager().getMapping(clr.classForName(mapping.getType()));
masterMapping.setMemberMetaData(mmd); // Update field info in mapping
masterMapping.setTable(this);
pkMappings[i] = masterMapping;
// Loop through each id column in the reference table and add the same here
// applying the required names from the columnContainer
for (int j = 0; j < mapping.getNumberOfDatastoreMappings(); j++) {
JavaTypeMapping m = masterMapping;
Column refColumn = mapping.getDatastoreMapping(j).getColumn();
if (mapping instanceof PersistableMapping) {
m =
storeMgr
.getMappingManager()
.getMapping(clr.classForName(refColumn.getJavaTypeMapping().getType()));
((PersistableMapping) masterMapping).addJavaTypeMapping(m);
}
ColumnMetaData userdefinedColumn = null;
if (userdefinedCols != null) {
for (int k = 0; k < userdefinedCols.length; k++) {
if (refColumn.getIdentifier().toString().equals(userdefinedCols[k].getTarget())) {
userdefinedColumn = userdefinedCols[k];
break;
}
}
if (userdefinedColumn == null && nextUserdefinedCol < userdefinedCols.length) {
userdefinedColumn = userdefinedCols[nextUserdefinedCol++];
}
}
// Add this application identity column
Column idColumn = null;
if (userdefinedColumn != null) {
// User has provided a name for this column
// Currently we only use the column namings from the users definition but we could easily
// take more of their details.
idColumn =
addColumn(
refColumn.getStoredJavaType(),
storeMgr
.getIdentifierFactory()
.newIdentifier(IdentifierType.COLUMN, userdefinedColumn.getName()),
m,
refColumn.getColumnMetaData());
} else {
// No name provided so take same as superclass
idColumn =
addColumn(
refColumn.getStoredJavaType(),
refColumn.getIdentifier(),
m,
refColumn.getColumnMetaData());
}
if (mapping.getDatastoreMapping(j).getColumn().getColumnMetaData() != null) {
refColumn.copyConfigurationTo(idColumn);
}
idColumn.setPrimaryKey();
// Set the column type based on the field.getType()
getStoreManager()
.getMappingManager()
.createDatastoreMapping(m, idColumn, refColumn.getJavaTypeMapping().getType());
}
// Update highest field number if this is higher
int absoluteFieldNumber = mmd.getAbsoluteFieldNumber();
if (absoluteFieldNumber > highestMemberNumber) {
highestMemberNumber = absoluteFieldNumber;
}
}
}
public SequenceMetaData setName(String name) {
this.name = (StringUtils.isWhitespace(name) ? this.name : name);
return this;
}
/**
* Method to return a statement selecting the candidate table(s) required to cover all possible
* types for this candidates inheritance strategy.
*
* @param storeMgr RDBMS StoreManager
* @param parentStmt Parent statement (if there is one)
* @param cmd Metadata for the class
* @param clsMapping Mapping for the results of the statement
* @param ec ExecutionContext
* @param candidateCls Candidate class
* @param subclasses Whether to create a statement for subclasses of the candidate too
* @param result The result clause
* @param candidateAlias alias for the candidate (if any)
* @param candidateTableGroupName TableGroup name for the candidate (if any)
* @return The SQLStatement
* @throws NucleusException if there are no tables for concrete classes in this query (hence would
* return null)
*/
public static SQLStatement getStatementForCandidates(
RDBMSStoreManager storeMgr,
SQLStatement parentStmt,
AbstractClassMetaData cmd,
StatementClassMapping clsMapping,
ExecutionContext ec,
Class candidateCls,
boolean subclasses,
String result,
String candidateAlias,
String candidateTableGroupName) {
SQLStatement stmt = null;
DatastoreIdentifier candidateAliasId = null;
if (candidateAlias != null) {
candidateAliasId = storeMgr.getIdentifierFactory().newTableIdentifier(candidateAlias);
}
ClassLoaderResolver clr = ec.getClassLoaderResolver();
List<DatastoreClass> candidateTables = new ArrayList<DatastoreClass>();
if (cmd.getInheritanceMetaData().getStrategy() == InheritanceStrategy.COMPLETE_TABLE) {
DatastoreClass candidateTable = storeMgr.getDatastoreClass(cmd.getFullClassName(), clr);
if (candidateTable != null) {
candidateTables.add(candidateTable);
}
if (subclasses) {
Collection<String> subclassNames =
storeMgr.getSubClassesForClass(cmd.getFullClassName(), subclasses, clr);
if (subclassNames != null) {
Iterator<String> subclassIter = subclassNames.iterator();
while (subclassIter.hasNext()) {
String subclassName = subclassIter.next();
DatastoreClass tbl = storeMgr.getDatastoreClass(subclassName, clr);
if (tbl != null) {
candidateTables.add(tbl);
}
}
}
}
Iterator<DatastoreClass> iter = candidateTables.iterator();
int maxClassNameLength = cmd.getFullClassName().length();
while (iter.hasNext()) {
DatastoreClass cls = iter.next();
String className = cls.getType();
if (className.length() > maxClassNameLength) {
maxClassNameLength = className.length();
}
}
iter = candidateTables.iterator();
while (iter.hasNext()) {
DatastoreClass cls = iter.next();
SQLStatement tblStmt =
new SQLStatement(parentStmt, storeMgr, cls, candidateAliasId, candidateTableGroupName);
tblStmt.setClassLoaderResolver(clr);
tblStmt.setCandidateClassName(cls.getType());
// Add SELECT of dummy column accessible as "NUCLEUS_TYPE" containing the classname
JavaTypeMapping m = storeMgr.getMappingManager().getMapping(String.class);
String nuctypeName = cls.getType();
if (maxClassNameLength > nuctypeName.length()) {
nuctypeName = StringUtils.leftAlignedPaddedString(nuctypeName, maxClassNameLength);
}
StringLiteral lit = new StringLiteral(tblStmt, m, nuctypeName, null);
tblStmt.select(lit, UnionStatementGenerator.NUC_TYPE_COLUMN);
if (stmt == null) {
stmt = tblStmt;
} else {
stmt.union(tblStmt);
}
}
if (clsMapping != null) {
clsMapping.setNucleusTypeColumnName(UnionStatementGenerator.NUC_TYPE_COLUMN);
}
} else {
// "new-table", "superclass-table", "subclass-table"
List<Class> candidateClasses = new ArrayList<Class>();
if (ClassUtils.isReferenceType(candidateCls)) {
// Persistent interface, so find all persistent implementations
String[] clsNames =
storeMgr
.getNucleusContext()
.getMetaDataManager()
.getClassesImplementingInterface(candidateCls.getName(), clr);
for (int i = 0; i < clsNames.length; i++) {
Class cls = clr.classForName(clsNames[i]);
DatastoreClass table = storeMgr.getDatastoreClass(clsNames[i], clr);
candidateClasses.add(cls);
candidateTables.add(table);
AbstractClassMetaData implCmd =
storeMgr.getNucleusContext().getMetaDataManager().getMetaDataForClass(cls, clr);
if (implCmd.getIdentityType() != cmd.getIdentityType()) {
throw new NucleusUserException(
"You are querying an interface ("
+ cmd.getFullClassName()
+ ") "
+ "yet one of its implementations ("
+ implCmd.getFullClassName()
+ ") "
+ " uses a different identity type!");
} else if (cmd.getIdentityType() == IdentityType.APPLICATION) {
if (cmd.getPKMemberPositions().length != implCmd.getPKMemberPositions().length) {
throw new NucleusUserException(
"You are querying an interface ("
+ cmd.getFullClassName()
+ ") "
+ "yet one of its implementations ("
+ implCmd.getFullClassName()
+ ") "
+ " has a different number of PK members!");
}
}
}
} else {
DatastoreClass candidateTable = storeMgr.getDatastoreClass(cmd.getFullClassName(), clr);
if (candidateTable != null) {
// Candidate has own table
candidateClasses.add(candidateCls);
candidateTables.add(candidateTable);
} else {
// Candidate stored in subclass tables
AbstractClassMetaData[] cmds = storeMgr.getClassesManagingTableForClass(cmd, clr);
if (cmds != null && cmds.length > 0) {
for (int i = 0; i < cmds.length; i++) {
DatastoreClass table = storeMgr.getDatastoreClass(cmds[i].getFullClassName(), clr);
Class cls = clr.classForName(cmds[i].getFullClassName());
candidateClasses.add(cls);
candidateTables.add(table);
}
} else {
throw new UnsupportedOperationException(
"No tables for query of " + cmd.getFullClassName());
}
}
}
for (int i = 0; i < candidateTables.size(); i++) {
DatastoreClass tbl = candidateTables.get(i);
Class cls = candidateClasses.get(i);
StatementGenerator stmtGen = null;
if (tbl.getDiscriminatorMapping(true) != null
|| QueryUtils.resultHasOnlyAggregates(result)) {
// Either has a discriminator, or only selecting aggregates so need single select
stmtGen =
new DiscriminatorStatementGenerator(
storeMgr, clr, cls, subclasses, candidateAliasId, candidateTableGroupName);
stmtGen.setOption(StatementGenerator.OPTION_RESTRICT_DISCRIM);
} else {
stmtGen =
new UnionStatementGenerator(
storeMgr, clr, cls, subclasses, candidateAliasId, candidateTableGroupName);
if (result == null) {
// Returning one row per candidate so include distinguisher column
stmtGen.setOption(StatementGenerator.OPTION_SELECT_NUCLEUS_TYPE);
clsMapping.setNucleusTypeColumnName(UnionStatementGenerator.NUC_TYPE_COLUMN);
}
}
stmtGen.setParentStatement(parentStmt);
SQLStatement tblStmt = stmtGen.getStatement();
if (stmt == null) {
stmt = tblStmt;
} else {
stmt.union(tblStmt);
}
}
}
return stmt;
}
public SequenceMetaData setFactoryClass(String factoryClass) {
this.factoryClass = (StringUtils.isWhitespace(factoryClass) ? null : factoryClass);
return this;
}
/**
* Method to populate any defaults, and check the validity of the MetaData.
*
* @param clr ClassLoaderResolver to use for any loading operations
* @param primary the primary ClassLoader to use (or null)
* @param mmgr MetaData manager
*/
public void populate(ClassLoaderResolver clr, ClassLoader primary, MetaDataManager mmgr) {
AbstractMemberMetaData mmd = (AbstractMemberMetaData) parent;
if (!StringUtils.isWhitespace(element.type) && element.type.indexOf(',') > 0) {
throw new InvalidMetaDataException(LOCALISER, "044131", mmd.getName(), mmd.getClassName());
}
// Make sure the type in "element" is set
element.populate(
((AbstractMemberMetaData) parent).getAbstractClassMetaData().getPackageName(),
clr,
primary,
mmgr);
// Check the field type and see if it is castable to a Collection
Class field_type = getMemberMetaData().getType();
if (!java.util.Collection.class.isAssignableFrom(field_type)) {
throw new InvalidMetaDataException(
LOCALISER, "044132", getFieldName(), getMemberMetaData().getClassName(false));
}
// "element-type"
if (element.type == null) {
throw new InvalidMetaDataException(
LOCALISER, "044133", getFieldName(), getMemberMetaData().getClassName(false));
}
// Check that the element type exists
Class elementTypeClass = null;
try {
elementTypeClass = clr.classForName(element.type, primary);
} catch (ClassNotResolvedException cnre) {
throw new InvalidMetaDataException(
LOCALISER,
"044134",
getFieldName(),
getMemberMetaData().getClassName(false),
element.type);
}
if (!elementTypeClass.getName().equals(element.type)) {
// The element-type has been resolved from what was specified in the MetaData - update to the
// fully-qualified name
NucleusLogger.METADATA.info(
LOCALISER.msg(
"044135",
getFieldName(),
getMemberMetaData().getClassName(false),
element.type,
elementTypeClass.getName()));
element.type = elementTypeClass.getName();
}
// "embedded-element"
ApiAdapter api = mmgr.getApiAdapter();
if (element.embedded == null) {
// Assign default for "embedded-element" based on 18.13.1 of JDO 2 spec
// Note : this fails when using in the enhancer since not yet PC
if (mmgr.getNucleusContext().getTypeManager().isDefaultEmbeddedType(elementTypeClass)) {
element.embedded = Boolean.TRUE;
} else if (api.isPersistable(elementTypeClass)
|| Object.class.isAssignableFrom(elementTypeClass)
|| elementTypeClass.isInterface()) {
element.embedded = Boolean.FALSE;
} else {
element.embedded = Boolean.TRUE;
}
}
if (Boolean.FALSE.equals(element.embedded)) {
// If the user has set a non-PC/non-Interface as not embedded, correct it since not supported.
// Note : this fails when using in the enhancer since not yet PC
if (!api.isPersistable(elementTypeClass)
&& !elementTypeClass.isInterface()
&& elementTypeClass != java.lang.Object.class) {
element.embedded = Boolean.TRUE;
}
}
ElementMetaData elemmd = ((AbstractMemberMetaData) parent).getElementMetaData();
if (elemmd != null && elemmd.getEmbeddedMetaData() != null) {
element.embedded = Boolean.TRUE;
}
if (Boolean.TRUE.equals(element.dependent)) {
// If the user has set a non-PC/non-reference as dependent, correct it since not valid.
// Note : this fails when using in the enhancer since not yet PC
if (!api.isPersistable(elementTypeClass)
&& !elementTypeClass.isInterface()
&& elementTypeClass != java.lang.Object.class) {
element.dependent = Boolean.FALSE;
}
}
// Keep a reference to the MetaData for the element
element.classMetaData = mmgr.getMetaDataForClassInternal(elementTypeClass, clr);
// Make sure anything in the superclass is populated too
super.populate(clr, primary, mmgr);
setPopulated();
}
