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/*
Wotonomy: OpenStep design patterns for pure Java applications.
Copyright (C) 2001 Intersect Software Corporation
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see http://www.gnu.org
*/
package net.wotonomy.access;
import net.wotonomy.control.EOClassDescription;
import net.wotonomy.control.EOEditingContext;
import net.wotonomy.control.EOFetchSpecification;
import net.wotonomy.control.EOGenericRecord;
import net.wotonomy.control.EOGlobalID;
import net.wotonomy.foundation.NSArray;
import net.wotonomy.foundation.NSMutableArray;
/**
* @author ezamudio@nasoft.com
* @author $Author: cgruber $
* @version $Revision: 894 $
*/
public class EOEntityClassDescription extends EOClassDescription {
protected EOEntity _entity;
public EOEntityClassDescription() {
super();
}
public EOEntityClassDescription(EOEntity entity) {
this();
_entity = entity;
}
public NSArray allAttributeKeys() {
NSArray arr = entity().attributes();
NSMutableArray a = new NSMutableArray(arr.count());
for (int i = 0; i < arr.count(); i++) {
EOAttribute atrib = (EOAttribute)arr.objectAtIndex(i);
a.addObject(atrib);
}
return a;
}
public NSArray allPropertyKeys() {
return entity().classPropertyNames();
}
public NSArray allToManyRelationshipKeys() {
NSArray arr = entity().relationships();
NSMutableArray a = new NSMutableArray(arr.count());
for (int i = 0; i < arr.count(); i++) {
EORelationship r = (EORelationship)arr.objectAtIndex(i);
if (r.isToMany())
a.addObject(r);
}
return a;
}
public NSArray allToOneRelationshipKeys() {
NSArray arr = entity().relationships();
NSMutableArray a = new NSMutableArray(arr.count());
for (int i = 0; i < arr.count(); i++) {
EORelationship r = (EORelationship)arr.objectAtIndex(i);
if (!r.isToMany())
a.addObject(r);
}
return a;
}
/** Returns all attributes that correspond to columns
* in a database table.
*/
public NSArray attributeKeys() {
NSArray arr = entity().attributes();
NSMutableArray a = new NSMutableArray(arr.count());
for (int i = 0; i < arr.count(); i++) {
EOAttribute atrib = (EOAttribute)arr.objectAtIndex(i);
if (!atrib.isDerived())
a.addObject(atrib);
}
return a;
}
public EOClassDescription classDescriptionForDestinationKey(String key) {
EORelationship r = entity().relationshipNamed(key);
if (r == null)
return null;
return r.destinationEntity().classDescriptionForInstances();
}
public NSArray clientAttributeKeys() {
return null;
}
public NSArray clientToManyRelationshipKeys() {
return null;
}
public NSArray clientToOneRelationshipKeys() {
return null;
}
public EOEntity entity() {
return _entity;
}
public String entityName() {
return _entity.name();
}
public EOFetchSpecification fetchSpecificationNamed(String name) {
return entity().fetchSpecificationNamed(name);
}
public NSArray toManyRelationshipKeys() {
NSArray arr = entity().relationships();
NSMutableArray a = new NSMutableArray(arr.count());
for (int i = 0; i < arr.count(); i++) {
EORelationship r = (EORelationship)arr.objectAtIndex(i);
if (r.isToMany() && !r.isFlattened())
a.addObject(r);
}
return a;
}
public NSArray toOneRelationshipKeys() {
NSArray arr = entity().relationships();
NSMutableArray a = new NSMutableArray(arr.count());
for (int i = 0; i < arr.count(); i++) {
EORelationship r = (EORelationship)arr.objectAtIndex(i);
if (!r.isToMany() && !r.isFlattened())
a.addObject(r);
}
return a;
}
public Object createInstanceWithEditingContext(EOEditingContext ec, EOGlobalID gid) {
if (theClass == null) {
try {
theClass = Class.forName(entity().className());
} catch (ClassNotFoundException ex) {
if (entity().className().equals("net.wotonomy.control.EOGenericRecord"))
throw new IllegalArgumentException("Cannot find class " + entity().className());
theClass = EOGenericRecord.class;
}
}
return super.createInstanceWithEditingContext(ec, gid);
}
}
/*
* $Log$
* Revision 1.2 2006/02/16 16:47:13 cgruber
* Move some classes in to "internal" packages and re-work imports, etc.
*
* Also use UnsupportedOperationExceptions where appropriate, instead of WotonomyExceptions.
*
* Revision 1.1 2006/02/16 13:19:57 cgruber
* Check in all sources in eclipse-friendly maven-enabled packages.
*
* Revision 1.4 2003/08/19 01:55:54 chochos
* the behavior is now more consistent with its Apple counterpart.
*
* Revision 1.3 2003/08/09 01:40:31 chochos
* use EOClassDescription's methods to get a destination entity's class description.
*
* Revision 1.2 2003/08/08 05:51:59 chochos
* createInstanceWithEditingContext now works. It sets theClass with the class from the entity className() before calling super.
*
* Revision 1.1 2003/08/08 00:36:19 chochos
* concrete implementation of EOClassDescription that uses an EOEntity
*
*/
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