org.drools.builder.conf.AccumulateFunctionOption Maven / Gradle / Ivy
/**
* 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.builder.conf;
import org.drools.runtime.rule.AccumulateFunction;
/**
* A class for the accumulate function configuration.
*
* @author etirelli
*/
public class AccumulateFunctionOption implements MultiValueKnowledgeBuilderOption {
private static final long serialVersionUID = 510l;
/**
* The prefix for the property name for accumulate functions
*/
public static final String PROPERTY_NAME = "drools.accumulate.function.";
/**
* accumulate function name
*/
private final String name;
/**
* the accumulate function instance
*/
private final AccumulateFunction function;
/**
* Private constructor to enforce the use of the factory method
* @param name
*/
private AccumulateFunctionOption( final String name, final AccumulateFunction function ) {
this.name = name;
this.function = function;
}
/**
* This is a factory method for this AccumulateFunction configuration.
* The factory method is a best practice for the case where the
* actual object construction is changed in the future.
*
* @param name the name of the function to be configured
*
* @return the actual type safe accumulate function configuration.
*/
public static AccumulateFunctionOption get( final String name, final AccumulateFunction function ) {
return new AccumulateFunctionOption( name, function );
}
/**
* {@inheritDoc}
*/
public String getPropertyName() {
return PROPERTY_NAME+name;
}
/**
* Returns the name of the function configured
*
* @return
*/
public String getName() {
return name;
}
/**
* Returns the accumulate function instance
* @return
*/
public AccumulateFunction getFunction() {
return function;
}
@Override
public String toString() {
return "AccumulateFunction( name="+name+" function="+function+" )";
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((function == null) ? 0 : function.hashCode());
result = prime * result + ((name == null) ? 0 : name.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if ( this == obj ) return true;
if ( obj == null ) return false;
if ( getClass() != obj.getClass() ) return false;
AccumulateFunctionOption other = (AccumulateFunctionOption) obj;
if ( function == null ) {
if ( other.function != null ) return false;
} else if ( other.function == null ) {
return false;
} else if( !function.getClass().getName().equals( other.function.getClass().getName() ) ) return false;
if ( name == null ) {
if ( other.name != null ) return false;
} else if ( !name.equals( other.name ) ) return false;
return true;
}
}