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1 files changed, 185 insertions, 0 deletions

diff --git a/projects/net.wotonomy.persistence/src/main/java/net/wotonomy/access/EOEntityClassDescription.java b/projects/net.wotonomy.persistence/src/main/java/net/wotonomy/access/EOEntityClassDescription.java
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+++ b/projects/net.wotonomy.persistence/src/main/java/net/wotonomy/access/EOEntityClassDescription.java
@@ -0,0 +1,185 @@
+/*
+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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