private static void addColumnsToScanForEmbeddedMember(
Scan scan, List<AbstractMemberMetaData> embMmds, Table table, ExecutionContext ec) {
AbstractMemberMetaData lastMmd = embMmds.get(embMmds.size() - 1);
ClassLoaderResolver clr = ec.getClassLoaderResolver();
AbstractClassMetaData embCmd =
ec.getMetaDataManager().getMetaDataForClass(lastMmd.getTypeName(), clr);
int[] embMmdPosns = embCmd.getAllMemberPositions();
for (int i = 0; i < embMmdPosns.length; i++) {
AbstractMemberMetaData embMmd = embCmd.getMetaDataForManagedMemberAtAbsolutePosition(i);
List<AbstractMemberMetaData> subEmbMmds = new ArrayList<AbstractMemberMetaData>(embMmds);
subEmbMmds.add(embMmd);
RelationType relationType = embMmd.getRelationType(clr);
MemberColumnMapping mapping = table.getMemberColumnMappingForEmbeddedMember(subEmbMmds);
if (RelationType.isRelationSingleValued(relationType)) {
addColumnsToScanForEmbeddedMember(scan, subEmbMmds, table, ec);
} else {
String familyName = HBaseUtils.getFamilyNameForColumn(mapping.getColumn(0));
String qualifName = HBaseUtils.getQualifierNameForColumn(mapping.getColumn(0));
scan.addColumn(familyName.getBytes(), qualifName.getBytes());
}
}
}
protected static Object getObjectUsingNondurableIdForResult(
final Result result,
final AbstractClassMetaData cmd,
final ExecutionContext ec,
boolean ignoreCache,
final int[] fpMembers,
String tableName,
StoreManager storeMgr,
Table table) {
if (cmd.hasDiscriminatorStrategy()) {
// Check the class for this discriminator value
String familyName = HBaseUtils.getFamilyNameForColumn(table.getDiscriminatorColumn());
String columnName = HBaseUtils.getQualifierNameForColumn(table.getDiscriminatorColumn());
Object discValue = new String(result.getValue(familyName.getBytes(), columnName.getBytes()));
if (cmd.getDiscriminatorStrategy() == DiscriminatorStrategy.CLASS_NAME
&& !cmd.getFullClassName().equals(discValue)) {
return null;
} else if (cmd.getDiscriminatorStrategy() == DiscriminatorStrategy.VALUE_MAP
&& !cmd.getDiscriminatorValue().equals(discValue)) {
return null;
}
}
final FieldManager fm = new FetchFieldManager(ec, cmd, result, table);
SCOID id = new SCOID(cmd.getFullClassName());
Object pc =
ec.findObject(
id,
new FieldValues() {
// ObjectProvider calls the fetchFields method
public void fetchFields(ObjectProvider op) {
op.replaceFields(fpMembers, fm);
}
public void fetchNonLoadedFields(ObjectProvider op) {
op.replaceNonLoadedFields(fpMembers, fm);
}
public FetchPlan getFetchPlanForLoading() {
return null;
}
},
null,
ignoreCache,
false);
if (cmd.isVersioned()) {
// Set the version on the object
ObjectProvider op = ec.findObjectProvider(pc);
Object version = null;
VersionMetaData vermd = cmd.getVersionMetaDataForClass();
if (vermd.getFieldName() != null) {
// Set the version from the field value
AbstractMemberMetaData verMmd = cmd.getMetaDataForMember(vermd.getFieldName());
version = op.provideField(verMmd.getAbsoluteFieldNumber());
} else {
// Get the surrogate version from the datastore
version = HBaseUtils.getSurrogateVersionForObject(cmd, result, tableName, storeMgr);
}
op.setVersion(version);
}
if (result.getRow() != null) {
ObjectProvider sm = ec.findObjectProvider(pc);
sm.setAssociatedValue("HBASE_ROW_KEY", result.getRow());
}
return pc;
}
protected static Object getObjectUsingDatastoreIdForResult(
final Result result,
final AbstractClassMetaData cmd,
final ExecutionContext ec,
boolean ignoreCache,
final int[] fpMembers,
String tableName,
StoreManager storeMgr,
Table table) {
if (cmd.hasDiscriminatorStrategy()) {
// Check the class for this discriminator value
String familyName = HBaseUtils.getFamilyNameForColumn(table.getDiscriminatorColumn());
String columnName = HBaseUtils.getQualifierNameForColumn(table.getDiscriminatorColumn());
Object discValue = new String(result.getValue(familyName.getBytes(), columnName.getBytes()));
if (cmd.getDiscriminatorStrategy() == DiscriminatorStrategy.CLASS_NAME
&& !cmd.getFullClassName().equals(discValue)) {
return null;
} else if (cmd.getDiscriminatorStrategy() == DiscriminatorStrategy.VALUE_MAP
&& !cmd.getDiscriminatorValue().equals(discValue)) {
return null;
}
}
String dsidFamilyName = HBaseUtils.getFamilyNameForColumn(table.getDatastoreIdColumn());
String dsidColumnName = HBaseUtils.getQualifierNameForColumn(table.getDatastoreIdColumn());
Object id = null;
try {
byte[] bytes = result.getValue(dsidFamilyName.getBytes(), dsidColumnName.getBytes());
if (bytes != null) {
ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
ObjectInputStream ois = new ObjectInputStream(bis);
Object key = ois.readObject();
id =
ec.getNucleusContext().getIdentityManager().getDatastoreId(cmd.getFullClassName(), key);
ois.close();
bis.close();
} else {
throw new NucleusException(
"Retrieved identity for family="
+ dsidFamilyName
+ " column="
+ dsidColumnName
+ " IS NULL");
}
} catch (Exception e) {
throw new NucleusException(e.getMessage(), e);
}
final FieldManager fm = new FetchFieldManager(ec, cmd, result, table);
Object pc =
ec.findObject(
id,
new FieldValues() {
// ObjectProvider calls the fetchFields method
public void fetchFields(ObjectProvider op) {
op.replaceFields(fpMembers, fm);
}
public void fetchNonLoadedFields(ObjectProvider op) {
op.replaceNonLoadedFields(fpMembers, fm);
}
public FetchPlan getFetchPlanForLoading() {
return null;
}
},
null,
ignoreCache,
false);
if (cmd.isVersioned()) {
// Set the version on the object
ObjectProvider op = ec.findObjectProvider(pc);
Object version = null;
VersionMetaData vermd = cmd.getVersionMetaDataForClass();
if (vermd.getFieldName() != null) {
// Set the version from the field value
AbstractMemberMetaData verMmd = cmd.getMetaDataForMember(vermd.getFieldName());
version = op.provideField(verMmd.getAbsoluteFieldNumber());
} else {
// Get the surrogate version from the datastore
version = HBaseUtils.getSurrogateVersionForObject(cmd, result, tableName, storeMgr);
}
op.setVersion(version);
}
if (result.getRow() != null) {
ObjectProvider sm = ec.findObjectProvider(pc);
sm.setAssociatedValue("HBASE_ROW_KEY", result.getRow());
}
return pc;
}