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* 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.reflect;
import org.apache.cayenne.ObjectContext;
import org.apache.cayenne.Persistent;
import org.apache.cayenne.map.ObjAttribute;
/**
* A descriptor of an "attribute" persistent property.
*
* @since 3.0
*/
public class SimpleAttributeProperty extends BaseProperty implements AttributeProperty {
private ObjAttribute attribute;
public SimpleAttributeProperty(ClassDescriptor owner, Accessor accessor,
ObjAttribute attribute) {
super(owner, accessor);
this.attribute = attribute;
}
@Override
public boolean visit(PropertyVisitor visitor) {
return visitor.visitAttribute(this);
}
public ObjAttribute getAttribute() {
return attribute;
}
@Override
public Object readProperty(Object object) throws PropertyException {
resolveFault(object);
return super.readProperty(object);
}
@Override
public void writeProperty(Object object, Object oldValue, Object newValue)
throws PropertyException {
resolveFault(object);
super.writeProperty(object, oldValue, newValue);
}
protected void resolveFault(Object object) throws PropertyException {
try {
Persistent persistent = (Persistent) object;
ObjectContext context = persistent.getObjectContext();
if (context != null) {
context.prepareForAccess(persistent, getName(), false);
}
}
catch (ClassCastException e) {
throw new PropertyException("Object is not a Persistent: '"
+ object.getClass().getName()
+ "'", this, object, e);
}
}
}