/*
* Copyright 2011 Goldman Sachs.
*
* 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 com.gs.collections.impl.block.function;
import com.gs.collections.api.block.function.Function;
import com.gs.collections.api.block.predicate.Predicate;
public class IfFunction<T, V> implements Function<T, V>
{
private static final long serialVersionUID = 1L;
private final Predicate<? super T> predicate;
private final Function<? super T, ? extends V> function;
private final Function<? super T, ? extends V> elseFunction;
public IfFunction(
Predicate<? super T> newPredicate,
Function<? super T, ? extends V> function)
{
this(newPredicate, function, null);
}
public IfFunction(Predicate<? super T> predicate,
Function<? super T, ? extends V> function,
Function<? super T, ? extends V> elseFunction)
{
this.predicate = predicate;
this.function = function;
this.elseFunction = elseFunction;
}
public V valueOf(T object)
{
if (this.predicate.accept(object))
{
return this.function.valueOf(object);
}
if (this.elseFunction != null)
{
return this.elseFunction.valueOf(object);
}
return null;
}
@Override
public String toString()
{
return "new IfFunction(" + this.predicate + ", " + this.function + ", " + this.elseFunction + ')';
}
}