package org.drools.base;
import java.io.Serializable;
import org.drools.base.mvel.DroolsMVELKnowledgeHelper;
import org.drools.spi.KnowledgeHelper;
import org.mvel.ASTNode;
import org.mvel.ast.WithNode;
import org.mvel.integration.Interceptor;
import org.mvel.integration.VariableResolverFactory;
public class ModifyInterceptor
implements
Interceptor,
Serializable {
private static final long serialVersionUID = 400L;
public int doBefore(ASTNode node,
VariableResolverFactory factory) {
Object object = ((WithNode) node).getNestedStatement().getValue( null,
factory );
DroolsMVELKnowledgeHelper resolver = (DroolsMVELKnowledgeHelper) factory.getVariableResolver( "drools" );
KnowledgeHelper helper = (KnowledgeHelper) resolver.getValue();
helper.modifyRetract( object );
return 0;
}
public int doAfter(Object value,
ASTNode node,
VariableResolverFactory factory) {
DroolsMVELKnowledgeHelper resolver = (DroolsMVELKnowledgeHelper) factory.getVariableResolver( "drools" );
KnowledgeHelper helper = (KnowledgeHelper) resolver.getValue();
helper.modifyInsert( value );
return 0;
}
}