/**
* Copyright 2005 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.conflict;
import org.drools.spi.Activation;
import org.drools.spi.ConflictResolver;
/**
* Strategy for resolving conflicts amongst multiple rules.
*
* <p>
* Since a fact or set of facts may activate multiple rules, a
* <code>ConflictResolutionStrategy</code> is used to provide priority
* ordering of conflicting rules.
* </p>
*
* @see Activation
* @see org.drools.spi.Tuple
* @see org.drools.rule.Rule
*
* @author <a href="mailto:simon@redhillconsulting.com.au">Simon Harris </a>
*/
public class CompositeConflictResolver extends AbstractConflictResolver {
/**
*
*/
private static final long serialVersionUID = 510l;
private final ConflictResolver[] components;
public CompositeConflictResolver(final ConflictResolver[] components) {
this.components = components;
}
/**
* @see AbstractConflictResolver
*/
public final int compare(final Activation lhs,
final Activation rhs) {
int result = 0;
for ( int i = 0; result == 0 && i < this.components.length; ++i ) {
result = this.components[i].compare( lhs,
rhs );
}
return result;
}
}