/**
* Copyright 2010 JBoss Inc
*
* Licensed 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.drools.base;
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import org.drools.base.mvel.DroolsMVELKnowledgeHelper;
import org.drools.spi.KnowledgeHelper;
import org.mvel2.ast.ASTNode;
import org.mvel2.ast.WithNode;
import org.mvel2.integration.Interceptor;
import org.mvel2.integration.VariableResolverFactory;
public class ModifyInterceptor
implements
Interceptor,
Externalizable {
private static final long serialVersionUID = 510l;
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
}
public void writeExternal(ObjectOutput out) throws IOException {
}
public int doBefore(ASTNode node,
VariableResolverFactory factory) {
return 0;
}
public int doAfter(Object value,
ASTNode node,
VariableResolverFactory factory) {
DroolsMVELKnowledgeHelper resolver = (DroolsMVELKnowledgeHelper) factory.getVariableResolver( "drools" );
KnowledgeHelper helper = (KnowledgeHelper) resolver.getValue();
helper.update( value );
return 0;
}
}