use of javax.jdo.annotations.FetchGroup in project datanucleus-api-jdo by datanucleus.
the class JDOAnnotationReader method processClassAnnotations.
/**
* Method to process the "class" level annotations and create the outline ClassMetaData object.
* Supports classes annotated with @PersistenceCapable, classes annotated with @PersistenceAware, and classes which have neither of those but have @Queries or @Query.
* @param pmd Parent PackageMetaData
* @param cls The class
* @param annotations Annotations for this class
* @param clr ClassLoader resolver
* @return The ClassMetaData/InterfaceMetaData (or null if no annotations)
*/
protected AbstractClassMetaData processClassAnnotations(PackageMetaData pmd, Class cls, AnnotationObject[] annotations, ClassLoaderResolver clr) {
if (annotations == null || annotations.length == 0) {
return null;
}
AbstractClassMetaData cmd = null;
AnnotationObject pcAnnotation = isClassPersistable(annotations);
if (pcAnnotation != null) {
// PersistenceCapable class
cmd = (cls.isInterface()) ? pmd.newInterfaceMetadata(ClassUtils.getClassNameForClass(cls)) : pmd.newClassMetadata(ClassUtils.getClassNameForClass(cls));
cmd.setPersistenceModifier(ClassPersistenceModifier.PERSISTENCE_CAPABLE);
// Process all attributes here in case needed for other annotations
processPersistenceCapableAnnotation(cls, cmd, pcAnnotation.getNameValueMap());
} else if (isClassPersistenceAware(annotations)) {
// PersistenceAware class
cmd = pmd.newClassMetadata(ClassUtils.getClassNameForClass(cls));
cmd.setPersistenceModifier(ClassPersistenceModifier.PERSISTENCE_AWARE);
} else if (doesClassHaveNamedQueries(annotations)) {
// Class with named query specified
cmd = pmd.newClassMetadata(ClassUtils.getClassNameForClass(cls));
cmd.setPersistenceModifier(ClassPersistenceModifier.NON_PERSISTENT);
} else {
// Not involved in the persistence process
return null;
}
// Cater for named queries being specified on a persistence aware, or other class
processNamedQueries(cmd, cls, annotations);
if (cmd.getPersistenceModifier() != ClassPersistenceModifier.PERSISTENCE_CAPABLE) {
// Not persistable, so no further information needed
return cmd;
}
// Class is persistable so process annotations
for (AnnotationObject annotation : annotations) {
String annName = annotation.getName();
if (annName.equals(JDOAnnotationUtils.PERSISTENCE_CAPABLE)) {
// @PersistenceCapable is merged and processed above
continue;
}
Map<String, Object> annotationValues = annotation.getNameValueMap();
if (annName.equals(JDOAnnotationUtils.EMBEDDED_ONLY)) {
cmd.setEmbeddedOnly(true);
} else if (annName.equals(JDOAnnotationUtils.VERSION)) {
VersionStrategy versionStrategy = (VersionStrategy) annotationValues.get("strategy");
String strategy = JDOAnnotationUtils.getVersionStrategyString(versionStrategy);
String indexed = (String) annotationValues.get("indexed");
String column = (String) annotationValues.get("column");
Column[] columns = (Column[]) annotationValues.get("columns");
VersionMetaData vermd = new VersionMetaData();
vermd.setStrategy(strategy);
vermd.setColumnName(column);
vermd.setIndexed(IndexedValue.getIndexedValue(indexed));
if (columns != null && columns.length > 0) {
// Only use the first column
ColumnMetaData colmd = JDOAnnotationUtils.getColumnMetaDataForColumnAnnotation(columns[0]);
vermd.setColumnMetaData(colmd);
}
JDOAnnotationUtils.addExtensionsToMetaData(vermd, (Extension[]) annotationValues.get("extensions"));
vermd.setParent(cmd);
cmd.setVersionMetaData(vermd);
} else if (annName.equals(JDOAnnotationUtils.DATASTORE_IDENTITY)) {
String strategy = JDOAnnotationUtils.getValueGenerationStrategyString((IdGeneratorStrategy) annotationValues.get("strategy"));
String customStrategy = (String) annotationValues.get("customStrategy");
if (!StringUtils.isWhitespace(customStrategy)) {
// User has provided an extension strategy
strategy = customStrategy;
}
String sequence = (String) annotationValues.get("sequence");
String column = (String) annotationValues.get("column");
Column[] columns = (Column[]) annotationValues.get("columns");
IdentityMetaData idmd = new IdentityMetaData();
idmd.setColumnName(column);
idmd.setValueStrategy(ValueGenerationStrategy.getIdentityStrategy(strategy));
idmd.setSequence(sequence);
if (columns != null && columns.length > 0) {
// Only use the first column
ColumnMetaData colmd = JDOAnnotationUtils.getColumnMetaDataForColumnAnnotation(columns[0]);
idmd.setColumnMetaData(colmd);
}
JDOAnnotationUtils.addExtensionsToMetaData(idmd, (Extension[]) annotationValues.get("extensions"));
idmd.setParent(cmd);
cmd.setIdentityMetaData(idmd);
} else if (annName.equals(JDOAnnotationUtils.PRIMARY_KEY)) {
String pkName = (String) annotationValues.get("name");
String pkColumn = (String) annotationValues.get("column");
Column[] columns = (Column[]) annotationValues.get("columns");
PrimaryKeyMetaData pkmd = new PrimaryKeyMetaData();
pkmd.setName(pkName);
pkmd.setColumnName(pkColumn);
if (columns != null && columns.length > 0) {
for (Column column : columns) {
pkmd.addColumn(JDOAnnotationUtils.getColumnMetaDataForColumnAnnotation(column));
}
}
JDOAnnotationUtils.addExtensionsToMetaData(pkmd, (Extension[]) annotationValues.get("extensions"));
pkmd.setParent(cmd);
cmd.setPrimaryKeyMetaData(pkmd);
} else if (annName.equals(JDOAnnotationUtils.JOINS)) {
Join[] js = (Join[]) annotationValues.get("value");
if (js != null && js.length > 0) {
for (Join join : js) {
JoinMetaData joinmd = cmd.newJoinMetaData();
joinmd.setTable(join.table());
joinmd.setColumnName(join.column());
joinmd.setIndexed(IndexedValue.getIndexedValue(join.indexed()));
joinmd.setOuter(MetaDataUtils.getBooleanForString(join.outer(), false));
joinmd.setUnique(join.unique());
joinmd.setDeleteAction(JDOAnnotationUtils.getForeignKeyActionString(join.deleteAction()));
JDOAnnotationUtils.addExtensionsToMetaData(joinmd, join.extensions());
}
}
} else if (annName.equals(JDOAnnotationUtils.JOIN)) {
JoinMetaData joinmd = cmd.newJoinMetaData();
joinmd.setTable((String) annotationValues.get("table"));
joinmd.setColumnName((String) annotationValues.get("column"));
joinmd.setIndexed(IndexedValue.getIndexedValue((String) annotationValues.get("indexed")));
joinmd.setOuter(MetaDataUtils.getBooleanForString((String) annotationValues.get("outer"), false));
joinmd.setUnique((String) annotationValues.get("unique"));
joinmd.setDeleteAction(((ForeignKeyAction) annotationValues.get("deleteAction")).toString());
JDOAnnotationUtils.addExtensionsToMetaData(joinmd, (Extension[]) annotationValues.get("extensions"));
} else if (annName.equals(JDOAnnotationUtils.INHERITANCE)) {
String strategy = JDOAnnotationUtils.getInheritanceStrategyString((InheritanceStrategy) annotationValues.get("strategy"));
String customStrategy = (String) annotationValues.get("customStrategy");
if (!StringUtils.isWhitespace(customStrategy)) {
// User has provided an extension strategy
strategy = customStrategy;
}
InheritanceMetaData inhmd = cmd.getInheritanceMetaData();
if (inhmd == null) {
inhmd = cmd.newInheritanceMetadata();
}
inhmd.setStrategy(strategy);
} else if (annName.equals(JDOAnnotationUtils.DISCRIMINATOR)) {
DiscriminatorStrategy discriminatorStrategy = (DiscriminatorStrategy) annotationValues.get("strategy");
String strategy = JDOAnnotationUtils.getDiscriminatorStrategyString(discriminatorStrategy);
String column = (String) annotationValues.get("column");
String indexed = (String) annotationValues.get("indexed");
String value = (String) annotationValues.get("value");
Column[] columns = (Column[]) annotationValues.get("columns");
InheritanceMetaData inhmd = cmd.getInheritanceMetaData();
if (inhmd == null) {
inhmd = cmd.newInheritanceMetadata();
}
DiscriminatorMetaData dismd = inhmd.newDiscriminatorMetadata();
dismd.setColumnName(column);
dismd.setValue(value);
dismd.setStrategy(strategy);
dismd.setIndexed(indexed);
if (columns != null && columns.length > 0) {
// Only use the first column
ColumnMetaData colmd = JDOAnnotationUtils.getColumnMetaDataForColumnAnnotation(columns[0]);
dismd.setColumnMetaData(colmd);
}
} else if (annName.equals(JDOAnnotationUtils.FETCHPLANS)) {
FileMetaData filemd = (FileMetaData) pmd.getParent();
FetchPlan[] plans = (FetchPlan[]) annotationValues.get("value");
for (FetchPlan plan : plans) {
FetchPlanMetaData fpmd = filemd.newFetchPlanMetadata(plan.name());
fpmd.setFetchSize(plan.fetchSize());
fpmd.setMaxFetchDepth(plan.maxFetchDepth());
int numGroups = plan.fetchGroups().length;
for (int k = 0; k < numGroups; k++) {
fpmd.addFetchGroup(new FetchGroupMetaData(plan.fetchGroups()[k]));
}
}
} else if (annName.equals(JDOAnnotationUtils.FETCHPLAN)) {
FileMetaData filemd = (FileMetaData) pmd.getParent();
FetchPlanMetaData fpmd = filemd.newFetchPlanMetadata((String) annotationValues.get("name"));
fpmd.setFetchSize(((Integer) annotationValues.get("fetchSize")).intValue());
fpmd.setMaxFetchDepth(((Integer) annotationValues.get("maxFetchDepth")).intValue());
String[] fpFetchGroups = (String[]) annotationValues.get("fetchGroups");
for (String fpFetchGroup : fpFetchGroups) {
fpmd.addFetchGroup(new FetchGroupMetaData(fpFetchGroup));
}
} else if (annName.equals(JDOAnnotationUtils.FETCHGROUPS)) {
FetchGroup[] groups = (FetchGroup[]) annotationValues.get("value");
for (FetchGroup group : groups) {
FetchGroupMetaData fgmd = cmd.newFetchGroupMetaData(group.name());
if (!StringUtils.isWhitespace(group.postLoad())) {
fgmd.setPostLoad(Boolean.valueOf(group.postLoad()));
}
int numFields = group.members().length;
for (int k = 0; k < numFields; k++) {
FetchGroupMemberMetaData fgmmd = new FetchGroupMemberMetaData(fgmd, group.members()[k].name());
fgmmd.setRecursionDepth(group.members()[k].recursionDepth());
fgmd.addMember(fgmmd);
}
int numGroups = group.fetchGroups().length;
for (int k = 0; k < numGroups; k++) {
fgmd.addFetchGroup(new FetchGroupMetaData(group.fetchGroups()[k]));
}
}
} else if (annName.equals(JDOAnnotationUtils.FETCHGROUP)) {
FetchGroupMetaData fgmd = cmd.newFetchGroupMetaData((String) annotationValues.get("name"));
String postLoadStr = (String) annotationValues.get("postLoad");
if (!StringUtils.isWhitespace(postLoadStr)) {
fgmd.setPostLoad(Boolean.valueOf(postLoadStr));
}
Persistent[] fields = (Persistent[]) annotationValues.get("members");
if (fields != null) {
for (Persistent field : fields) {
FetchGroupMemberMetaData fgmmd = new FetchGroupMemberMetaData(fgmd, field.name());
fgmmd.setRecursionDepth(field.recursionDepth());
fgmd.addMember(fgmmd);
}
}
} else if (annName.equals(JDOAnnotationUtils.SEQUENCE)) {
String seqName = (String) annotationValues.get("name");
String seqStrategy = JDOAnnotationUtils.getSequenceStrategyString((SequenceStrategy) annotationValues.get("strategy"));
String seqSeq = (String) annotationValues.get("datastoreSequence");
Class seqFactory = (Class) annotationValues.get("factoryClass");
String seqFactoryClassName = null;
if (seqFactory != null && seqFactory != void.class) {
seqFactoryClassName = seqFactory.getName();
}
Integer seqSize = (Integer) annotationValues.get("allocationSize");
Integer seqStart = (Integer) annotationValues.get("initialValue");
if (StringUtils.isWhitespace(seqName)) {
throw new InvalidClassMetaDataException("044155", cmd.getFullClassName());
}
SequenceMetaData seqmd = new SequenceMetaData(seqName, seqStrategy);
seqmd.setFactoryClass(seqFactoryClassName);
seqmd.setDatastoreSequence(seqSeq);
if (seqSize != null) {
seqmd.setAllocationSize(seqSize);
}
if (seqStart != null) {
seqmd.setInitialValue(seqStart);
}
JDOAnnotationUtils.addExtensionsToMetaData(seqmd, (Extension[]) annotationValues.get("extensions"));
// Sequence - currently only allowing 1 per class (should really be on the package)
cmd.getPackageMetaData().addSequence(seqmd);
} else if (annName.equals(JDOAnnotationUtils.INDICES)) {
// Multiple Indices for the class
Index[] values = (Index[]) annotationValues.get("value");
if (values != null && values.length > 0) {
for (Index idx : values) {
IndexMetaData idxmd = JDOAnnotationUtils.getIndexMetaData(idx.name(), idx.table(), "" + idx.unique(), idx.members(), idx.columns());
if (idxmd.getNumberOfColumns() == 0 && idxmd.getNumberOfMembers() == 0) {
NucleusLogger.METADATA.warn(Localiser.msg("044204", cls.getName()));
} else {
cmd.addIndex(idxmd);
idxmd.setParent(cmd);
}
}
}
} else if (annName.equals(JDOAnnotationUtils.INDEX)) {
// Single Index for the class
String name = (String) annotationValues.get("name");
String table = (String) annotationValues.get("table");
String unique = (String) annotationValues.get("unique");
String[] members = (String[]) annotationValues.get("members");
Column[] columns = (Column[]) annotationValues.get("columns");
IndexMetaData idxmd = JDOAnnotationUtils.getIndexMetaData(name, table, unique, members, columns);
JDOAnnotationUtils.addExtensionsToMetaData(idxmd, (Extension[]) annotationValues.get("extensions"));
if (idxmd.getNumberOfColumns() == 0 && idxmd.getNumberOfMembers() == 0) {
NucleusLogger.METADATA.warn(Localiser.msg("044204", cls.getName()));
} else {
cmd.addIndex(idxmd);
idxmd.setParent(cmd);
}
} else if (annName.equals(JDOAnnotationUtils.UNIQUES)) {
// Multiple Unique Constraints for the class
Unique[] values = (Unique[]) annotationValues.get("value");
if (values != null && values.length > 0) {
for (Unique uni : values) {
UniqueMetaData unimd = JDOAnnotationUtils.getUniqueMetaData(uni.name(), uni.table(), "" + uni.deferred(), uni.members(), uni.columns());
if (unimd.getNumberOfColumns() == 0 && unimd.getNumberOfMembers() == 0) {
NucleusLogger.METADATA.warn(Localiser.msg("044205", cls.getName()));
} else {
cmd.addUniqueConstraint(unimd);
unimd.setParent(cmd);
}
}
}
} else if (annName.equals(JDOAnnotationUtils.UNIQUE)) {
// Single Unique constraint for the class
String name = (String) annotationValues.get("name");
String table = (String) annotationValues.get("table");
String deferred = (String) annotationValues.get("deferred");
String[] members = (String[]) annotationValues.get("members");
Column[] columns = (Column[]) annotationValues.get("columns");
UniqueMetaData unimd = JDOAnnotationUtils.getUniqueMetaData(name, table, deferred, members, columns);
JDOAnnotationUtils.addExtensionsToMetaData(unimd, (Extension[]) annotationValues.get("extensions"));
if (unimd.getNumberOfColumns() == 0 && unimd.getNumberOfMembers() == 0) {
NucleusLogger.METADATA.warn(Localiser.msg("044205", cls.getName()));
} else {
cmd.addUniqueConstraint(unimd);
unimd.setParent(cmd);
}
} else if (annName.equals(JDOAnnotationUtils.FOREIGNKEYS)) {
// Multiple FKs for the class
ForeignKey[] values = (ForeignKey[]) annotationValues.get("value");
if (values != null && values.length > 0) {
for (ForeignKey fk : values) {
String deleteAction = JDOAnnotationUtils.getForeignKeyActionString(fk.deleteAction());
String updateAction = JDOAnnotationUtils.getForeignKeyActionString(fk.updateAction());
ForeignKeyMetaData fkmd = JDOAnnotationUtils.getFKMetaData(fk.name(), fk.table(), fk.unique(), "" + fk.deferred(), deleteAction, updateAction, fk.members(), fk.columns());
if (fkmd.getNumberOfColumns() == 0 && fkmd.getNumberOfMembers() == 0) {
NucleusLogger.METADATA.warn(Localiser.msg("044206", cls.getName()));
} else {
cmd.addForeignKey(fkmd);
fkmd.setParent(cmd);
}
}
}
} else if (annName.equals(JDOAnnotationUtils.FOREIGNKEY)) {
// Single FK constraint for the class
String name = (String) annotationValues.get("name");
String table = (String) annotationValues.get("table");
String unique = (String) annotationValues.get("unique");
String deferred = (String) annotationValues.get("deferred");
String deleteAction = JDOAnnotationUtils.getForeignKeyActionString((ForeignKeyAction) annotationValues.get("deleteAction"));
String updateAction = JDOAnnotationUtils.getForeignKeyActionString((ForeignKeyAction) annotationValues.get("updateAction"));
String[] members = (String[]) annotationValues.get("members");
Column[] columns = (Column[]) annotationValues.get("columns");
ForeignKeyMetaData fkmd = JDOAnnotationUtils.getFKMetaData(name, table, unique, deferred, deleteAction, updateAction, members, columns);
JDOAnnotationUtils.addExtensionsToMetaData(fkmd, (Extension[]) annotationValues.get("extensions"));
if (fkmd.getNumberOfColumns() == 0 && fkmd.getNumberOfMembers() == 0) {
NucleusLogger.METADATA.warn(Localiser.msg("044206", cls.getName()));
} else {
cmd.addForeignKey(fkmd);
fkmd.setParent(cmd);
}
} else if (annName.equals(JDOAnnotationUtils.COLUMNS)) {
// Unmapped column specification
Column[] cols = (Column[]) annotationValues.get("value");
if (cols != null && cols.length > 0) {
for (Column col : cols) {
ColumnMetaData colmd = JDOAnnotationUtils.getColumnMetaDataForColumnAnnotation(col);
JDOAnnotationUtils.addExtensionsToMetaData(colmd, col.extensions());
colmd.setParent(cmd);
cmd.addUnmappedColumn(colmd);
}
}
} else if (annName.equals(JDOAnnotationUtils.CACHEABLE)) {
String cache = (String) annotationValues.get("value");
if (cache != null && cache.equalsIgnoreCase("false")) {
cmd.setCacheable(false);
}
} else if (annName.equals(JDOAnnotationUtils.EXTENSIONS)) {
Extension[] values = (Extension[]) annotationValues.get("value");
if (values != null && values.length > 0) {
for (Extension ext : values) {
String vendorName = ext.vendorName();
if (StringUtils.isWhitespace(vendorName)) {
throw new InvalidMetaDataException("044160", vendorName, ext.key().toString(), ext.value().toString());
} else if (vendorName.equalsIgnoreCase(MetaData.VENDOR_NAME)) {
cmd.addExtension(ext.key().toString(), ext.value().toString());
}
}
}
} else if (annName.equals(JDOAnnotationUtils.EXTENSION)) {
String vendorName = (String) annotationValues.get("vendorName");
if (StringUtils.isWhitespace(vendorName)) {
throw new InvalidMetaDataException("044160", vendorName, annotationValues.get("key"), annotationValues.get("value"));
} else if (vendorName.equalsIgnoreCase(MetaData.VENDOR_NAME)) {
cmd.addExtension((String) annotationValues.get("key"), (String) annotationValues.get("value"));
}
} else {
if (!annName.equals(JDOAnnotationUtils.PERSISTENCE_AWARE) && !annName.equals(JDOAnnotationUtils.QUERIES) && !annName.equals(JDOAnnotationUtils.QUERY)) {
NucleusLogger.METADATA.debug(Localiser.msg("044203", cls.getName(), annotation.getName()));
}
}
}
NucleusLogger.METADATA.debug(Localiser.msg("044200", cls.getName(), "JDO"));
return cmd;
}
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