public void executeClear(ObjectProvider ownerOP) {
String clearStmt = getClearStmt();
try {
ExecutionContext ec = ownerOP.getExecutionContext();
ManagedConnection mconn = storeMgr.getConnection(ec);
SQLController sqlControl = storeMgr.getSQLController();
try {
PreparedStatement ps = sqlControl.getStatementForUpdate(mconn, clearStmt, false);
try {
int jdbcPosition = 1;
jdbcPosition =
BackingStoreHelper.populateOwnerInStatement(ownerOP, ec, ps, jdbcPosition, this);
if (getRelationDiscriminatorMapping() != null) {
BackingStoreHelper.populateRelationDiscriminatorInStatement(ec, ps, jdbcPosition, this);
}
sqlControl.executeStatementUpdate(ec, mconn, clearStmt, ps, true);
} finally {
sqlControl.closeStatement(mconn, ps);
}
} finally {
mconn.release();
}
} catch (SQLException e) {
throw new NucleusDataStoreException(Localiser.msg("056013", clearStmt), e);
}
}
@Override
public NucleusConnection getNucleusConnection(ExecutionContext ec) {
ConnectionFactory cf = connectionMgr.lookupConnectionFactory(primaryConnectionFactoryName);
final ManagedConnection mc;
final boolean enlisted;
enlisted = ec.getTransaction().isActive();
mc =
cf.getConnection(
enlisted ? ec : null,
ec.getTransaction(),
null); // Will throw exception if already locked
// Lock the connection now that it is in use by the user
mc.lock();
Runnable closeRunnable =
new Runnable() {
public void run() {
// Unlock the connection now that the user has finished with it
mc.unlock();
if (!enlisted) {
// TODO Anything to do here?
}
}
};
return new NucleusConnectionImpl(mc.getConnection(), closeRunnable);
}
/**
* Clear the association from owner to all elements. Provides cascade-delete when the elements
* being deleted are PC types.
*
* @param ownerOP ObjectProvider for the container.
*/
public void clear(ObjectProvider ownerOP) {
Collection dependentElements = null;
CollectionMetaData collmd = ownerMemberMetaData.getCollection();
boolean dependent = collmd.isDependentElement();
if (ownerMemberMetaData.isCascadeRemoveOrphans()) {
dependent = true;
}
if (dependent && !collmd.isEmbeddedElement() && !collmd.isSerializedElement()) {
// Retain the dependent elements that need deleting after clearing
dependentElements = new HashSet();
Iterator iter = iterator(ownerOP);
while (iter.hasNext()) {
dependentElements.add(iter.next());
}
}
String clearStmt = getClearStmt();
try {
ExecutionContext ec = ownerOP.getExecutionContext();
ManagedConnection mconn = storeMgr.getConnection(ec);
SQLController sqlControl = storeMgr.getSQLController();
try {
PreparedStatement ps = sqlControl.getStatementForUpdate(mconn, clearStmt, false);
try {
int jdbcPosition = 1;
jdbcPosition =
BackingStoreHelper.populateOwnerInStatement(ownerOP, ec, ps, jdbcPosition, this);
if (relationDiscriminatorMapping != null) {
BackingStoreHelper.populateRelationDiscriminatorInStatement(ec, ps, jdbcPosition, this);
}
sqlControl.executeStatementUpdate(ec, mconn, clearStmt, ps, true);
} finally {
sqlControl.closeStatement(mconn, ps);
}
} finally {
mconn.release();
}
} catch (SQLException e) {
throw new NucleusDataStoreException(Localiser.msg("056013", clearStmt), e);
}
// Cascade-delete
if (dependentElements != null && dependentElements.size() > 0) {
Iterator iter = dependentElements.iterator();
while (iter.hasNext()) {
Object obj = iter.next();
if (ownerOP.getExecutionContext().getApiAdapter().isDeleted(obj)) {
// Element is tagged for deletion so will be deleted at flush(), and we dont need it
// immediately
} else {
ownerOP.getExecutionContext().deleteObjectInternal(obj);
}
}
}
}
public int getSize(ObjectProvider ownerOP) {
int numRows;
String sizeStmt = getSizeStmt();
try {
ExecutionContext ec = ownerOP.getExecutionContext();
ManagedConnection mconn = storeMgr.getConnection(ec);
SQLController sqlControl = storeMgr.getSQLController();
try {
PreparedStatement ps = sqlControl.getStatementForQuery(mconn, sizeStmt);
try {
int jdbcPosition = 1;
jdbcPosition =
BackingStoreHelper.populateOwnerInStatement(ownerOP, ec, ps, jdbcPosition, this);
if (getElementInfo() != null && getElementInfo().length == 1) {
// TODO Allow for multiple element types (e.g interface implementations)
for (int i = 0; i < getElementInfo().length; i++) {
if (getElementInfo()[i].getDiscriminatorMapping() != null) {
jdbcPosition =
BackingStoreHelper.populateElementDiscriminatorInStatement(
ec, ps, jdbcPosition, true, getElementInfo()[i], clr);
}
}
}
if (getRelationDiscriminatorMapping() != null) {
jdbcPosition =
BackingStoreHelper.populateRelationDiscriminatorInStatement(
ec, ps, jdbcPosition, this);
}
ResultSet rs = sqlControl.executeStatementQuery(ec, mconn, sizeStmt, ps);
try {
if (!rs.next()) {
throw new NucleusDataStoreException(Localiser.msg("056007", sizeStmt));
}
numRows = rs.getInt(1);
JDBCUtils.logWarnings(rs);
} finally {
rs.close();
}
} finally {
sqlControl.closeStatement(mconn, ps);
}
} finally {
mconn.release();
}
} catch (SQLException e) {
throw new NucleusDataStoreException(Localiser.msg("056007", sizeStmt), e);
}
return numRows;
}
/**
* 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;
}
@SuppressWarnings({"rawtypes", "unchecked"})
protected Object performExecute(Map parameters) {
AbstractClassMetaData cmd =
ec.getMetaDataManager().getMetaDataForClass(candidateClass, ec.getClassLoaderResolver());
ManagedConnection mconn = getStoreManager().getConnection(ec);
try {
// get all stored instances of class candidateClass
Collection candidates;
if (candidateCollection == null) {
candidates = ScalarisUtils.getObjectsOfCandidateType(ec, mconn, candidateClass, cmd);
} else {
candidates = new ArrayList<Object>(candidateCollection);
}
// JDOQLEvaluator's ResultClassMapper (needed when using JDOQLs INTO keyword)
// does not support alias
// execute query
JavaQueryEvaluator resultMapper =
new JDOQLEvaluator(
this, candidates, compilation, parameters, ec.getClassLoaderResolver());
Collection result = resultMapper.execute(true, true, true, false, true);
// apply a custom ResultClassMapper because the mapper used by
// DataNucleus does not support alias' while wrapping
Expression[] expResult = compilation.getExprResult();
if (expResult != null
&& getResultClass() != null
&& !(expResult[0] instanceof CreatorExpression)) {
return mapResultClass(result, expResult);
}
return result;
} finally {
mconn.release();
}
}
/**
* Convenience method to set the state for this connection.
*
* @param conn The Connection
* @param state The state
*/
protected void setConnectionStatementState(
final ManagedConnection conn, ConnectionStatementState state) {
connectionStatements.put(conn, state);
conn.addListener(
new ManagedConnectionResourceListener() {
public void transactionFlushed() {
try {
processStatementsForConnection(conn);
} catch (SQLException e) {
// cleanup state
ConnectionStatementState state = getConnectionStatementState(conn);
if (state != null) {
// Remove the current connection statement
removeConnectionStatementState(conn);
// Close the statement if it is registered for closing after processing
if (state.closeStatementOnProcess) {
try {
state.stmt.close();
} catch (SQLException ex) {
// ignore
}
}
}
throw new NucleusDataStoreException(LOCALISER.msg("052108"), e);
}
}
public void transactionPreClose() {}
public void managedConnectionPreClose() {}
public void managedConnectionPostClose() {}
public void resourcePostClose() {}
});
}
/**
* Accessor for the current DatastoreService for this ExecutionContext. Each PM/EM has its own
* DatastoreService.
*
* @param ec ExecutionContext
* @return The DatastoreService
*/
public DatastoreService getDatastoreService(ExecutionContext ec) {
ManagedConnection mconn = ec.getStoreManager().getConnection(ec);
return ((EmulatedXAResource) mconn.getXAResource()).getDatastoreService();
}
/**
* Accessor for the current DatastoreTransaction for this ExecutionContext. Each PM/EM has its own
* DatastoreService, and consequently can have a current DatastoreTransaction.
*
* @param ec ExecutionContext
* @return The DatastoreTransaction if active, or null
*/
public DatastoreTransaction getDatastoreTransaction(ExecutionContext ec) {
ManagedConnection mconn = ec.getStoreManager().getConnection(ec);
return ((EmulatedXAResource) mconn.getXAResource()).getCurrentTransaction();
}
/**
* Utility that does a discriminator candidate query for the specified candidate and subclasses
* and returns the class name of the instance that has the specified identity (if any).
*
* @param storeMgr RDBMS StoreManager
* @param ec execution context
* @param id The id
* @param cmd Metadata for the root candidate class
* @return Name of the class with this identity (or null if none found)
*/
public static String getClassNameForIdUsingDiscriminator(
RDBMSStoreManager storeMgr, ExecutionContext ec, Object id, AbstractClassMetaData cmd) {
// Check for input error
if (cmd == null || id == null) {
return null;
}
SQLExpressionFactory exprFactory = storeMgr.getSQLExpressionFactory();
ClassLoaderResolver clr = ec.getClassLoaderResolver();
DatastoreClass primaryTable = storeMgr.getDatastoreClass(cmd.getFullClassName(), clr);
// Form the query to find which one of these classes has the instance with this id
DiscriminatorStatementGenerator stmtGen =
new DiscriminatorStatementGenerator(
storeMgr, clr, clr.classForName(cmd.getFullClassName()), true, null, null);
stmtGen.setOption(SelectStatementGenerator.OPTION_RESTRICT_DISCRIM);
SelectStatement sqlStmt = stmtGen.getStatement();
// Select the discriminator
JavaTypeMapping discrimMapping = primaryTable.getDiscriminatorMapping(true);
SQLTable discrimSqlTbl =
SQLStatementHelper.getSQLTableForMappingOfTable(
sqlStmt, sqlStmt.getPrimaryTable(), discrimMapping);
sqlStmt.select(discrimSqlTbl, discrimMapping, null);
// Restrict to this id
JavaTypeMapping idMapping = primaryTable.getIdMapping();
JavaTypeMapping idParamMapping = new PersistableIdMapping((PersistableMapping) idMapping);
SQLExpression sqlFldExpr =
exprFactory.newExpression(sqlStmt, sqlStmt.getPrimaryTable(), idMapping);
SQLExpression sqlFldVal = exprFactory.newLiteralParameter(sqlStmt, idParamMapping, id, "ID");
sqlStmt.whereAnd(sqlFldExpr.eq(sqlFldVal), true);
// Perform the query
try {
ManagedConnection mconn = storeMgr.getConnection(ec);
SQLController sqlControl = storeMgr.getSQLController();
if (ec.getSerializeReadForClass(cmd.getFullClassName())) {
sqlStmt.addExtension(SQLStatement.EXTENSION_LOCK_FOR_UPDATE, true);
}
try {
PreparedStatement ps =
SQLStatementHelper.getPreparedStatementForSQLStatement(sqlStmt, ec, mconn, null, null);
String statement = sqlStmt.getSQLText().toSQL();
try {
ResultSet rs = sqlControl.executeStatementQuery(ec, mconn, statement, ps);
try {
if (rs != null) {
while (rs.next()) {
DiscriminatorMetaData dismd = discrimMapping.getTable().getDiscriminatorMetaData();
return RDBMSQueryUtils.getClassNameFromDiscriminatorResultSetRow(
discrimMapping, dismd, rs, ec);
}
}
} finally {
rs.close();
}
} finally {
sqlControl.closeStatement(mconn, ps);
}
} finally {
mconn.release();
}
} catch (SQLException sqe) {
NucleusLogger.DATASTORE.error("Exception thrown on querying of discriminator for id", sqe);
throw new NucleusDataStoreException(sqe.toString(), sqe);
}
return null;
}
/**
* Utility that does a union candidate query for the specified candidate(s) and subclasses and
* returns the class name of the instance that has the specified identity (if any).
*
* @param storeMgr RDBMS StoreManager
* @param ec execution context
* @param id The id
* @param rootCmds Metadata for the classes at the root
* @return Name of the class with this identity (or null if none found)
*/
public static String getClassNameForIdUsingUnion(
RDBMSStoreManager storeMgr,
ExecutionContext ec,
Object id,
List<AbstractClassMetaData> rootCmds) {
// Check for input error
if (rootCmds == null || rootCmds.isEmpty() || id == null) {
return null;
}
SQLExpressionFactory exprFactory = storeMgr.getSQLExpressionFactory();
ClassLoaderResolver clr = ec.getClassLoaderResolver();
// Form a query UNIONing all possible root candidates (and their subclasses)
Iterator<AbstractClassMetaData> rootCmdIter = rootCmds.iterator();
AbstractClassMetaData sampleCmd =
null; // Metadata for sample class in the tree so we can check if needs locking
SelectStatement sqlStmtMain = null;
while (rootCmdIter.hasNext()) {
AbstractClassMetaData rootCmd = rootCmdIter.next();
DatastoreClass rootTbl = storeMgr.getDatastoreClass(rootCmd.getFullClassName(), clr);
if (rootTbl == null) {
// Class must be using "subclass-table" (no table of its own) so find where it is
AbstractClassMetaData[] subcmds = storeMgr.getClassesManagingTableForClass(rootCmd, clr);
if (subcmds == null || subcmds.length == 0) {
// No table for this class so ignore
} else {
for (int i = 0; i < subcmds.length; i++) {
UnionStatementGenerator stmtGen =
new UnionStatementGenerator(
storeMgr,
clr,
clr.classForName(subcmds[i].getFullClassName()),
true,
null,
null);
stmtGen.setOption(SelectStatementGenerator.OPTION_SELECT_NUCLEUS_TYPE);
if (sqlStmtMain == null) {
sampleCmd = subcmds[i];
sqlStmtMain = stmtGen.getStatement();
// WHERE (object id) = ?
JavaTypeMapping idMapping = sqlStmtMain.getPrimaryTable().getTable().getIdMapping();
JavaTypeMapping idParamMapping =
new PersistableIdMapping((PersistableMapping) idMapping);
SQLExpression fieldExpr =
exprFactory.newExpression(sqlStmtMain, sqlStmtMain.getPrimaryTable(), idMapping);
SQLExpression fieldVal =
exprFactory.newLiteralParameter(sqlStmtMain, idParamMapping, id, "ID");
sqlStmtMain.whereAnd(fieldExpr.eq(fieldVal), true);
} else {
SelectStatement sqlStmt = stmtGen.getStatement();
// WHERE (object id) = ?
JavaTypeMapping idMapping = sqlStmt.getPrimaryTable().getTable().getIdMapping();
JavaTypeMapping idParamMapping =
new PersistableIdMapping((PersistableMapping) idMapping);
SQLExpression fieldExpr =
exprFactory.newExpression(sqlStmt, sqlStmt.getPrimaryTable(), idMapping);
SQLExpression fieldVal =
exprFactory.newLiteralParameter(sqlStmt, idParamMapping, id, "ID");
sqlStmt.whereAnd(fieldExpr.eq(fieldVal), true);
sqlStmtMain.union(sqlStmt);
}
}
}
} else {
UnionStatementGenerator stmtGen =
new UnionStatementGenerator(
storeMgr, clr, clr.classForName(rootCmd.getFullClassName()), true, null, null);
stmtGen.setOption(SelectStatementGenerator.OPTION_SELECT_NUCLEUS_TYPE);
if (sqlStmtMain == null) {
sampleCmd = rootCmd;
sqlStmtMain = stmtGen.getStatement();
// WHERE (object id) = ?
JavaTypeMapping idMapping = sqlStmtMain.getPrimaryTable().getTable().getIdMapping();
JavaTypeMapping idParamMapping = new PersistableIdMapping((PersistableMapping) idMapping);
SQLExpression fieldExpr =
exprFactory.newExpression(sqlStmtMain, sqlStmtMain.getPrimaryTable(), idMapping);
SQLExpression fieldVal =
exprFactory.newLiteralParameter(sqlStmtMain, idParamMapping, id, "ID");
sqlStmtMain.whereAnd(fieldExpr.eq(fieldVal), true);
} else {
SelectStatement sqlStmt = stmtGen.getStatement();
// WHERE (object id) = ?
JavaTypeMapping idMapping = sqlStmt.getPrimaryTable().getTable().getIdMapping();
JavaTypeMapping idParamMapping = new PersistableIdMapping((PersistableMapping) idMapping);
SQLExpression fieldExpr =
exprFactory.newExpression(sqlStmt, sqlStmt.getPrimaryTable(), idMapping);
SQLExpression fieldVal =
exprFactory.newLiteralParameter(sqlStmt, idParamMapping, id, "ID");
sqlStmt.whereAnd(fieldExpr.eq(fieldVal), true);
sqlStmtMain.union(sqlStmt);
}
}
}
// Perform the query
try {
ManagedConnection mconn = storeMgr.getConnection(ec);
SQLController sqlControl = storeMgr.getSQLController();
if (ec.getSerializeReadForClass(sampleCmd.getFullClassName())) {
sqlStmtMain.addExtension(SQLStatement.EXTENSION_LOCK_FOR_UPDATE, true);
}
try {
PreparedStatement ps =
SQLStatementHelper.getPreparedStatementForSQLStatement(
sqlStmtMain, ec, mconn, null, null);
String statement = sqlStmtMain.getSQLText().toSQL();
try {
ResultSet rs = sqlControl.executeStatementQuery(ec, mconn, statement, ps);
try {
if (rs != null) {
while (rs.next()) {
try {
return rs.getString(UnionStatementGenerator.NUC_TYPE_COLUMN).trim();
} catch (SQLException sqle) {
}
}
}
} finally {
rs.close();
}
} finally {
sqlControl.closeStatement(mconn, ps);
}
} finally {
mconn.release();
}
} catch (SQLException sqe) {
NucleusLogger.DATASTORE.error("Exception with UNION statement", sqe);
throw new NucleusDataStoreException(sqe.toString());
}
return null;
}
public int getSize(ObjectProvider ownerOP) {
int numRows;
String sizeStmt = getSizeStmt();
try {
ExecutionContext ec = ownerOP.getExecutionContext();
ManagedConnection mconn = storeMgr.getConnection(ec);
SQLController sqlControl = storeMgr.getSQLController();
try {
PreparedStatement ps = sqlControl.getStatementForQuery(mconn, sizeStmt);
try {
int jdbcPosition = 1;
if (elementInfo == null) {
jdbcPosition =
BackingStoreHelper.populateOwnerInStatement(ownerOP, ec, ps, jdbcPosition, this);
} else {
if (usingJoinTable()) {
jdbcPosition =
BackingStoreHelper.populateOwnerInStatement(ownerOP, ec, ps, jdbcPosition, this);
if (elementInfo[0].getDiscriminatorMapping() != null) {
jdbcPosition =
BackingStoreHelper.populateElementDiscriminatorInStatement(
ec, ps, jdbcPosition, true, elementInfo[0], clr);
}
if (relationDiscriminatorMapping != null) {
jdbcPosition =
BackingStoreHelper.populateRelationDiscriminatorInStatement(
ec, ps, jdbcPosition, this);
}
} else {
for (int i = 0; i < elementInfo.length; i++) {
jdbcPosition =
BackingStoreHelper.populateOwnerInStatement(
ownerOP, ec, ps, jdbcPosition, this);
if (elementInfo[i].getDiscriminatorMapping() != null) {
jdbcPosition =
BackingStoreHelper.populateElementDiscriminatorInStatement(
ec, ps, jdbcPosition, true, elementInfo[i], clr);
}
if (relationDiscriminatorMapping != null) {
jdbcPosition =
BackingStoreHelper.populateRelationDiscriminatorInStatement(
ec, ps, jdbcPosition, this);
}
}
}
}
ResultSet rs = sqlControl.executeStatementQuery(ec, mconn, sizeStmt, ps);
try {
if (!rs.next()) {
throw new NucleusDataStoreException(Localiser.msg("056007", sizeStmt));
}
numRows = rs.getInt(1);
if (elementInfo != null && elementInfo.length > 1) {
while (rs.next()) {
numRows = numRows + rs.getInt(1);
}
}
JDBCUtils.logWarnings(rs);
} finally {
rs.close();
}
} catch (SQLException sqle) {
NucleusLogger.GENERAL.error("Exception in size", sqle);
throw sqle;
} finally {
sqlControl.closeStatement(mconn, ps);
}
} finally {
mconn.release();
}
} catch (SQLException e) {
throw new NucleusDataStoreException(Localiser.msg("056007", sizeStmt), e);
}
return numRows;
}
/**
* 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;
}