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Cayenne Object Persistence Framework
/*****************************************************************
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
****************************************************************/
package org.apache.cayenne.map;
import java.io.PrintWriter;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.Map;
import java.util.SortedMap;
import java.util.TreeMap;
import org.apache.commons.lang.builder.ToStringBuilder;
import org.apache.cayenne.map.event.AttributeEvent;
import org.apache.cayenne.map.event.DbAttributeListener;
import org.apache.cayenne.map.event.DbEntityListener;
import org.apache.cayenne.map.event.DbRelationshipListener;
import org.apache.cayenne.map.event.EntityEvent;
import org.apache.cayenne.map.event.ObjAttributeListener;
import org.apache.cayenne.map.event.ObjEntityListener;
import org.apache.cayenne.map.event.ObjRelationshipListener;
import org.apache.cayenne.map.event.RelationshipEvent;
import org.apache.cayenne.project.Project;
import org.apache.cayenne.query.NamedQuery;
import org.apache.cayenne.query.Query;
import org.apache.cayenne.util.Util;
import org.apache.cayenne.util.XMLEncoder;
import org.apache.cayenne.util.XMLSerializable;
/**
* Stores a collection of related mapping objects that describe database and object layers
* of an application. DataMap contains DbEntities mapping database tables, ObjEntities -
* mapping persistent Java classes, Procedures - mapping database stored procedures.
*
* @author Michael Shengaout
* @author Andrei Adamchik
* @author Craig Miskell
*/
public class DataMap implements Serializable, XMLSerializable, MappingNamespace,
DbEntityListener, DbAttributeListener, DbRelationshipListener, ObjEntityListener,
ObjAttributeListener, ObjRelationshipListener {
/**
* Defines whether a DataMap supports client entities.
*
* @since 1.2
*/
public static final String CLIENT_SUPPORTED_PROPERTY = "clientSupported";
/**
* Defines the name of the property for default client Java class package.
*
* @since 1.2
*/
public static final String DEFAULT_CLIENT_PACKAGE_PROPERTY = "defaultClientPackage";
/**
* Defines the name of the property for default DB schema.
*
* @since 1.1
*/
public static final String DEFAULT_SCHEMA_PROPERTY = "defaultSchema";
/**
* Defines the name of the property for default Java class package.
*
* @since 1.1
*/
public static final String DEFAULT_PACKAGE_PROPERTY = "defaultPackage";
/**
* Defines the name of the property for default DB schema.
*
* @since 1.1
*/
public static final String DEFAULT_SUPERCLASS_PROPERTY = "defaultSuperclass";
/**
* Defines the name of the property for default DB schema.
*
* @since 1.1
*/
public static final String DEFAULT_LOCK_TYPE_PROPERTY = "defaultLockType";
protected String name;
protected String location;
protected MappingNamespace namespace;
protected String defaultSchema;
protected String defaultPackage;
protected String defaultSuperclass;
protected int defaultLockType;
protected boolean clientSupported;
protected String defaultClientPackage;
private SortedMap objEntityMap;
private SortedMap dbEntityMap;
private SortedMap procedureMap;
private SortedMap queryMap;
/**
* Creates a new unnamed DataMap.
*/
public DataMap() {
this(null);
}
/**
* Creates a new named DataMap.
*/
public DataMap(String mapName) {
this(mapName, Collections.EMPTY_MAP);
}
public DataMap(String mapName, Map properties) {
objEntityMap = new TreeMap();
dbEntityMap = new TreeMap();
procedureMap = new TreeMap();
queryMap = new TreeMap();
setName(mapName);
initWithProperties(properties);
}
/**
* Performs DataMap initialization from a set of properties, using defaults for the
* missing properties.
*
* @since 1.1
*/
public void initWithProperties(Map properties) {
// must init defaults even if properties are empty
if (properties == null) {
properties = Collections.EMPTY_MAP;
}
Object lockType = properties.get(DEFAULT_LOCK_TYPE_PROPERTY);
Object packageName = properties.get(DEFAULT_PACKAGE_PROPERTY);
Object schema = properties.get(DEFAULT_SCHEMA_PROPERTY);
Object superclass = properties.get(DEFAULT_SUPERCLASS_PROPERTY);
Object clientEntities = properties.get(CLIENT_SUPPORTED_PROPERTY);
Object clientPackageName = properties.get(DEFAULT_CLIENT_PACKAGE_PROPERTY);
this.defaultLockType = "optimistic".equals(lockType)
? ObjEntity.LOCK_TYPE_OPTIMISTIC
: ObjEntity.LOCK_TYPE_NONE;
this.defaultPackage = (packageName != null) ? packageName.toString() : null;
this.defaultSchema = (schema != null) ? schema.toString() : null;
this.defaultSuperclass = (superclass != null) ? superclass.toString() : null;
this.clientSupported = (clientEntities != null) ? "true"
.equalsIgnoreCase(clientEntities.toString()) : false;
this.defaultClientPackage = (clientPackageName != null) ? clientPackageName
.toString() : null;
}
/**
* Returns a DataMap stripped of any server-side information, such as DbEntity
* mapping, or ObjEntities that are not allowed in the client tier. Returns null if
* this DataMap as a whole does not support client tier persistence.
*
* @since 1.2
*/
public DataMap getClientDataMap(EntityResolver serverResolver) {
if (!isClientSupported()) {
return null;
}
DataMap clientMap = new DataMap(getName());
// create client entities for entities
Iterator entities = getObjEntities().iterator();
while (entities.hasNext()) {
ObjEntity entity = (ObjEntity) entities.next();
if (entity.isClientAllowed()) {
clientMap.addObjEntity(entity.getClientEntity());
}
}
// create proxies for named queries
Iterator queries = getQueries().iterator();
while (queries.hasNext()) {
Query q = (Query) queries.next();
NamedQuery proxy = new NamedQuery(q.getName());
proxy.setName(q.getName());
// resolve metadata so that client can have access to it without knowing about
// the server query.
proxy.initMetadata(q.getMetaData(serverResolver));
clientMap.addQuery(proxy);
}
return clientMap;
}
/**
* Prints itself as a well-formed complete XML document. In comparison,
* {@link #encodeAsXML(XMLEncoder)}stores DataMap assuming it is a part of a bigger
* document.
*
* @since 1.1
*/
public void encodeAsXML(PrintWriter pw) {
XMLEncoder encoder = new XMLEncoder(pw, "\t");
encoder.println("");
encodeAsXML(encoder);
}
/**
* Prints itself as XML to the provided PrintWriter.
*
* @since 1.1
*/
public void encodeAsXML(XMLEncoder encoder) {
encoder.print("");
encoder.indent(1);
// properties
if (defaultLockType == ObjEntity.LOCK_TYPE_OPTIMISTIC) {
encoder.printProperty(DEFAULT_LOCK_TYPE_PROPERTY, "optimistic");
}
if (!Util.isEmptyString(defaultPackage)) {
encoder.printProperty(DEFAULT_PACKAGE_PROPERTY, defaultPackage);
}
if (!Util.isEmptyString(defaultSchema)) {
encoder.printProperty(DEFAULT_SCHEMA_PROPERTY, defaultSchema);
}
if (!Util.isEmptyString(defaultSuperclass)) {
encoder.printProperty(DEFAULT_SUPERCLASS_PROPERTY, defaultSuperclass);
}
if (clientSupported) {
encoder.printProperty(CLIENT_SUPPORTED_PROPERTY, "true");
}
if (!Util.isEmptyString(defaultClientPackage)) {
encoder.printProperty(DEFAULT_CLIENT_PACKAGE_PROPERTY, defaultClientPackage);
}
// procedures
encoder.print(getProcedureMap());
// DbEntities
boolean hasDerived = false;
Iterator dbEntities = getDbEntityMap().entrySet().iterator();
while (dbEntities.hasNext()) {
Map.Entry entry = (Map.Entry) dbEntities.next();
DbEntity dbe = (DbEntity) entry.getValue();
// skip derived, store them after regular DbEntities
if (dbe instanceof DerivedDbEntity) {
hasDerived = true;
}
else {
dbe.encodeAsXML(encoder);
}
}
// DerivedDbEntities
if (hasDerived) {
Iterator derivedDbEntities = getDbEntityMap().entrySet().iterator();
while (derivedDbEntities.hasNext()) {
Map.Entry entry = (Map.Entry) derivedDbEntities.next();
DbEntity dbe = (DbEntity) entry.getValue();
// only store derived...
if (dbe instanceof DerivedDbEntity) {
dbe.encodeAsXML(encoder);
}
}
}
// others...
encoder.print(getObjEntityMap());
encodeDBRelationshipsAsXML(getDbEntityMap(), encoder);
encodeOBJRelationshipsAsXML(getObjEntityMap(), encoder);
encoder.print(getQueryMap());
encoder.indent(-1);
encoder.println(" ");
}
// stores relationships of for the map of entities
private final void encodeDBRelationshipsAsXML(Map entityMap, XMLEncoder encoder) {
Iterator it = entityMap.entrySet().iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
Entity entity = (Entity) entry.getValue();
encoder.print(entity.getRelationships());
}
}
// stores relationships of for the map of entities
private final void encodeOBJRelationshipsAsXML(Map entityMap, XMLEncoder encoder) {
Iterator it = entityMap.entrySet().iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
ObjEntity entity = (ObjEntity) entry.getValue();
encoder.print(entity.getDeclaredRelationships());
}
}
public String toString() {
return new ToStringBuilder(this).append("name", getName()).toString();
}
/**
* Returns the name of this DataMap.
*/
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
/**
* Adds all Object and DB entities and Queries from another map to this map.
* Overwrites all existing entities and queries with the new ones.
*
* TODO: will need to implement advanced merge that allows different policies for
* overwriting entities / queries.
*
*/
public void mergeWithDataMap(DataMap map) {
Iterator dbs = new ArrayList(map.getDbEntities()).iterator();
while (dbs.hasNext()) {
DbEntity ent = (DbEntity) dbs.next();
this.removeDbEntity(ent.getName());
this.addDbEntity(ent);
}
Iterator objs = new ArrayList(map.getObjEntities()).iterator();
while (objs.hasNext()) {
ObjEntity ent = (ObjEntity) objs.next();
this.removeObjEntity(ent.getName());
this.addObjEntity(ent);
}
Iterator queries = new ArrayList(map.getQueries()).iterator();
while (queries.hasNext()) {
Query query = (Query) queries.next();
this.removeQuery(query.getName());
this.addQuery(query);
}
}
/**
* Returns "location" property value. Location is abstract and can depend on how the
* DataMap was loaded. E.g. location can be a File on the filesystem or a location
* within a JAR.
*/
public String getLocation() {
return location;
}
/**
* Sets "location" property.
*/
public void setLocation(String location) {
this.location = location;
}
/**
* Returns a sorted unmodifiable map of ObjEntities contained in this DataMap, keyed
* by ObjEntity name.
*/
public SortedMap getObjEntityMap() {
return Collections.unmodifiableSortedMap(objEntityMap);
}
/**
* Returns a sorted unmodifiable map of DbEntities contained in this DataMap, keyed by
* DbEntity name.
*/
public SortedMap getDbEntityMap() {
return Collections.unmodifiableSortedMap(dbEntityMap);
}
/**
* Returns a named query associated with this DataMap.
*
* @since 1.1
*/
public Query getQuery(String queryName) {
Query query = (Query) queryMap.get(queryName);
if (query != null) {
return query;
}
return namespace != null ? namespace.getQuery(queryName) : null;
}
/**
* Stores a query under its name.
*
* @since 1.1
*/
public void addQuery(Query query) {
if (query == null) {
throw new NullPointerException("Can't add null query.");
}
if (query.getName() == null) {
throw new NullPointerException("Query name can't be null.");
}
// TODO: change method signature to return replaced procedure and make sure the
// Modeler handles it...
Object existingQuery = queryMap.get(query.getName());
if (existingQuery != null) {
if (existingQuery == query) {
return;
}
else {
throw new IllegalArgumentException("An attempt to override entity '"
+ query.getName());
}
}
queryMap.put(query.getName(), query);
}
/**
* Removes a named query from the DataMap.
*
* @since 1.1
*/
public void removeQuery(String queryName) {
queryMap.remove(queryName);
}
/**
* @since 1.1
*/
public void clearQueries() {
queryMap.clear();
}
/**
* @since 1.2
*/
public void clearObjEntities() {
objEntityMap.clear();
}
/**
* @since 1.2
*/
public void clearDbEntities() {
dbEntityMap.clear();
}
/**
* @since 1.2
*/
public void clearProcedures() {
procedureMap.clear();
}
/**
* @since 1.1
*/
public SortedMap getQueryMap() {
return Collections.unmodifiableSortedMap(queryMap);
}
/**
* Returns an unmodifiable collection of mapped queries.
*
* @since 1.1
*/
public Collection getQueries() {
return Collections.unmodifiableCollection(queryMap.values());
}
/**
* Adds a new ObjEntity to this DataMap.
*/
public void addObjEntity(ObjEntity entity) {
if (entity.getName() == null) {
throw new NullPointerException("Attempt to add ObjEntity with no name.");
}
// TODO: change method signature to return replaced entity and make sure the
// Modeler handles it...
Object existingEntity = objEntityMap.get(entity.getName());
if (existingEntity != null) {
if (existingEntity == entity) {
return;
}
else {
throw new IllegalArgumentException("An attempt to override entity '"
+ entity.getName());
}
}
objEntityMap.put(entity.getName(), entity);
entity.setDataMap(this);
}
/**
* Adds a new DbEntity to this DataMap.
*/
public void addDbEntity(DbEntity entity) {
if (entity.getName() == null) {
throw new NullPointerException("Attempt to add DbEntity with no name.");
}
// TODO: change method signature to return replaced entity and make sure the
// Modeler handles it...
Object existingEntity = dbEntityMap.get(entity.getName());
if (existingEntity != null) {
if (existingEntity == entity) {
return;
}
else {
throw new IllegalArgumentException("An attempt to override entity '"
+ entity.getName());
}
}
dbEntityMap.put(entity.getName(), entity);
entity.setDataMap(this);
}
/**
* Returns an unmodifiable collection of ObjEntities stored in this DataMap.
*/
public Collection getObjEntities() {
return Collections.unmodifiableCollection(objEntityMap.values());
}
/**
* Returns all ObjEntities in this DataMap, including entities from dependent maps if
* includeDeps is true.
*
* @deprecated since 1.2 use getObjEntities().
*/
public Collection getObjEntities(boolean includeDeps) {
return getObjEntities();
}
/**
* Returns all DbEntities in this DataMap.
*/
public Collection getDbEntities() {
return Collections.unmodifiableCollection(dbEntityMap.values());
}
/**
* Returns DbEntity matching the name parameter. No dependencies will
* be searched.
*/
public DbEntity getDbEntity(String dbEntityName) {
DbEntity entity = (DbEntity) dbEntityMap.get(dbEntityName);
if (entity != null) {
return entity;
}
return namespace != null ? namespace.getDbEntity(dbEntityName) : null;
}
/**
* Returns an ObjEntity for a DataObject class name.
*
* @since 1.1
*/
public ObjEntity getObjEntityForJavaClass(String javaClassName) {
if (javaClassName == null) {
return null;
}
Iterator it = getObjEntityMap().entrySet().iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
ObjEntity entity = (ObjEntity) entry.getValue();
if (javaClassName.equals(entity.getClassName())) {
return entity;
}
}
return null;
}
/**
* Returns an ObjEntity for a given name. If it is not found in this DataMap, it will
* search a parent EntityNamespace.
*/
public ObjEntity getObjEntity(String objEntityName) {
ObjEntity entity = (ObjEntity) objEntityMap.get(objEntityName);
if (entity != null) {
return entity;
}
return namespace != null ? namespace.getObjEntity(objEntityName) : null;
}
/**
* Returns all ObjEntities mapped to the given DbEntity.
*/
public Collection getMappedEntities(DbEntity dbEntity) {
if (dbEntity == null) {
return Collections.EMPTY_LIST;
}
Collection allEntities = (namespace != null)
? namespace.getObjEntities()
: getObjEntities();
if (allEntities.isEmpty()) {
return Collections.EMPTY_LIST;
}
Collection result = new ArrayList();
Iterator iter = allEntities.iterator();
while (iter.hasNext()) {
ObjEntity objEnt = (ObjEntity) iter.next();
if (objEnt.getDbEntity() == dbEntity) {
result.add(objEnt);
}
}
return result;
}
/**
* "Dirty" remove of the DbEntity from the data map.
*/
public void removeDbEntity(String dbEntityName) {
removeDbEntity(dbEntityName, false);
}
/**
* Removes DbEntity from the DataMap. If clearDependencies is true, all
* DbRelationships that reference this entity are also removed. ObjEntities that rely
* on this entity are cleaned up.
*
* @since 1.1
*/
public void removeDbEntity(String dbEntityName, boolean clearDependencies) {
DbEntity dbEntityToDelete = (DbEntity) dbEntityMap.remove(dbEntityName);
if (dbEntityToDelete != null && clearDependencies) {
Iterator dbEnts = this.getDbEntities().iterator();
while (dbEnts.hasNext()) {
DbEntity dbEnt = (DbEntity) dbEnts.next();
// take a copy since we're going to modifiy the entity
Iterator rels = new ArrayList(dbEnt.getRelationships()).iterator();
while (rels.hasNext()) {
DbRelationship rel = (DbRelationship) rels.next();
if (dbEntityName.equals(rel.getTargetEntityName())) {
dbEnt.removeRelationship(rel.getName());
}
}
}
// Remove all obj relationships referencing removed DbRelationships.
Iterator objEnts = this.getObjEntities().iterator();
while (objEnts.hasNext()) {
ObjEntity objEnt = (ObjEntity) objEnts.next();
if (objEnt.getDbEntity() == dbEntityToDelete) {
objEnt.clearDbMapping();
}
else {
Iterator iter = objEnt.getRelationships().iterator();
while (iter.hasNext()) {
ObjRelationship rel = (ObjRelationship) iter.next();
Iterator dbRels = rel.getDbRelationships().iterator();
while (dbRels.hasNext()) {
DbRelationship dbRel = (DbRelationship) dbRels.next();
if (dbRel.getTargetEntity() == dbEntityToDelete) {
rel.clearDbRelationships();
break;
}
}
}
}
}
}
}
/**
* "Dirty" remove of the ObjEntity from the data map.
*/
public void removeObjEntity(String objEntityName) {
removeObjEntity(objEntityName, false);
}
/**
* Removes ObjEntity from the DataMap. If clearDependencies is true,
* all ObjRelationships that reference this entity are also removed.
*
* @since 1.1
*/
public void removeObjEntity(String objEntityName, boolean clearDependencies) {
ObjEntity entity = (ObjEntity) objEntityMap.remove(objEntityName);
if (entity != null && clearDependencies) {
// remove relationships that point to this entity
Iterator entities = getObjEntities().iterator();
while (entities.hasNext()) {
ObjEntity ent = (ObjEntity) entities.next();
// take a copy since we're going to modifiy the entity
Iterator rels = new ArrayList(ent.getRelationships()).iterator();
while (rels.hasNext()) {
ObjRelationship rel = (ObjRelationship) rels.next();
if (objEntityName.equals(rel.getTargetEntityName())
|| objEntityName.equals(rel.getTargetEntityName())) {
ent.removeRelationship(rel.getName());
}
}
}
}
}
/**
* Returns stored procedures associated with this DataMap.
*/
public Collection getProcedures() {
return Collections.unmodifiableCollection(procedureMap.values());
}
/**
* Returns a Procedure for a given name or null if no such procedure exists. If
* Procedure is not found in this DataMap, a parent EntityNamcespace is searched.
*/
public Procedure getProcedure(String procedureName) {
Procedure procedure = (Procedure) procedureMap.get(procedureName);
if (procedure != null) {
return procedure;
}
return namespace != null ? namespace.getProcedure(procedureName) : null;
}
/**
* Adds stored procedure to the list of procedures. If there is another procedure
* registered under the same name, throws an IllegalArgumentException.
*/
public void addProcedure(Procedure procedure) {
if (procedure.getName() == null) {
throw new NullPointerException("Attempt to add procedure with no name.");
}
// TODO: change method signature to return replaced procedure and make sure the
// Modeler handles it...
Object existingProcedure = procedureMap.get(procedure.getName());
if (existingProcedure != null) {
if (existingProcedure == procedure) {
return;
}
else {
throw new IllegalArgumentException("An attempt to override procedure '"
+ procedure.getName());
}
}
procedureMap.put(procedure.getName(), procedure);
procedure.setDataMap(this);
}
public void removeProcedure(String name) {
procedureMap.remove(name);
}
/**
* Returns a sorted unmodifiable map of Procedures in this DataMap keyed by name.
*/
public SortedMap getProcedureMap() {
return Collections.unmodifiableSortedMap(procedureMap);
}
/**
* Returns a parent namespace where this DataMap resides. Parent EntityNamespace is
* used to establish relationships with entities in other DataMaps.
*
* @since 1.1
*/
public MappingNamespace getNamespace() {
return namespace;
}
/**
* Sets a parent namespace where this DataMap resides. Parent EntityNamespace is used
* to establish relationships with entities in other DataMaps.
*
* @since 1.1
*/
public void setNamespace(MappingNamespace namespace) {
this.namespace = namespace;
}
/**
* @since 1.1
*/
public int getDefaultLockType() {
return defaultLockType;
}
/**
* @since 1.1
*/
public void setDefaultLockType(int defaultLockType) {
this.defaultLockType = defaultLockType;
}
/**
* @since 1.2
*/
public boolean isClientSupported() {
return clientSupported;
}
/**
* @since 1.2
*/
public void setClientSupported(boolean clientSupport) {
this.clientSupported = clientSupport;
}
/**
* Returns default client package.
*
* @since 1.2
*/
public String getDefaultClientPackage() {
return defaultClientPackage;
}
/**
* @since 1.2
*/
public void setDefaultClientPackage(String defaultClientPackage) {
this.defaultClientPackage = defaultClientPackage;
}
/**
* @since 1.1
*/
public String getDefaultPackage() {
return defaultPackage;
}
/**
* @since 1.1
*/
public void setDefaultPackage(String defaultPackage) {
this.defaultPackage = defaultPackage;
}
/**
* @since 1.1
*/
public String getDefaultSchema() {
return defaultSchema;
}
/**
* @since 1.1
*/
public void setDefaultSchema(String defaultSchema) {
this.defaultSchema = defaultSchema;
}
/**
* @since 1.1
*/
public String getDefaultSuperclass() {
return defaultSuperclass;
}
/**
* @since 1.1
*/
public void setDefaultSuperclass(String defaultSuperclass) {
this.defaultSuperclass = defaultSuperclass;
}
/**
* DbEntity property changed. May be name, attribute or relationship added or removed,
* etc. Attribute and relationship property changes are handled in respective
* listeners.
*
* @since 1.2
*/
public void dbEntityChanged(EntityEvent e) {
Entity entity = e.getEntity();
if (entity instanceof DbEntity) {
((DbEntity) entity).dbEntityChanged(e);
// finish up the name change here because we
// do not have direct access to the dbEntityMap
if (e.isNameChange()) {
// remove the entity from the map with the old name
dbEntityMap.remove(e.getOldName());
// add the entity back in with the new name
dbEntityMap.put(e.getNewName(), entity);
// important - clear parent namespace:
MappingNamespace ns = getNamespace();
if (ns instanceof EntityResolver) {
((EntityResolver) ns).clearCache();
}
}
}
}
/** New entity has been created/added. */
public void dbEntityAdded(EntityEvent e) {
// does nothing currently
}
/** Entity has been removed. */
public void dbEntityRemoved(EntityEvent e) {
// does nothing currently
}
/** Attribute property changed. */
public void dbAttributeChanged(AttributeEvent e) {
Entity entity = e.getEntity();
if (entity instanceof DbEntity) {
((DbEntity) entity).dbAttributeChanged(e);
}
}
/** New attribute has been created/added. */
public void dbAttributeAdded(AttributeEvent e) {
// does nothing currently
}
/** Attribute has been removed. */
public void dbAttributeRemoved(AttributeEvent e) {
// does nothing currently
}
/** Relationship property changed. */
public void dbRelationshipChanged(RelationshipEvent e) {
Entity entity = e.getEntity();
if (entity instanceof DbEntity) {
((DbEntity) entity).dbRelationshipChanged(e);
}
}
/** Relationship has been created/added. */
public void dbRelationshipAdded(RelationshipEvent e) {
// does nothing currently
}
/** Relationship has been removed. */
public void dbRelationshipRemoved(RelationshipEvent e) {
// does nothing currently
}
/**
* ObjEntity property changed. May be name, attribute or relationship added or
* removed, etc. Attribute and relationship property changes are handled in respective
* listeners.
*
* @since 1.2
*/
public void objEntityChanged(EntityEvent e) {
Entity entity = e.getEntity();
if (entity instanceof ObjEntity) {
((ObjEntity) entity).objEntityChanged(e);
// finish up the name change here because we
// do not have direct access to the objEntityMap
if (e.isNameChange()) {
// remove the entity from the map with the old name
objEntityMap.remove(e.getOldName());
// add the entity back in with the new name
objEntityMap.put(e.getNewName(), entity);
// important - clear parent namespace:
MappingNamespace ns = getNamespace();
if (ns instanceof EntityResolver) {
((EntityResolver) ns).clearCache();
}
}
}
}
/** New entity has been created/added. */
public void objEntityAdded(EntityEvent e) {
// does nothing currently
}
/** Entity has been removed. */
public void objEntityRemoved(EntityEvent e) {
// does nothing currently
}
/** Attribute property changed. */
public void objAttributeChanged(AttributeEvent e) {
// does nothing currently
}
/** New attribute has been created/added. */
public void objAttributeAdded(AttributeEvent e) {
// does nothing currently
}
/** Attribute has been removed. */
public void objAttributeRemoved(AttributeEvent e) {
// does nothing currently
}
/** Relationship property changed. */
public void objRelationshipChanged(RelationshipEvent e) {
// does nothing currently
}
/** Relationship has been created/added. */
public void objRelationshipAdded(RelationshipEvent e) {
// does nothing currently
}
/** Relationship has been removed. */
public void objRelationshipRemoved(RelationshipEvent e) {
// does nothing currently
}
}
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