org.apache.jackrabbit.spi.commons.iterator.Transformer Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with this
* work for additional information regarding copyright ownership. The ASF
* licenses this file to You 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.apache.jackrabbit.spi.commons.iterator;
/**
* Type safe counter part of {@link org.apache.commons.collections.Transformer}.
*
* @param argument type to transform from
* @param result type to transform to
*/
public interface Transformer {
/**
* Transforms the input object (leaving it unchanged) into some output object.
*
* @param argument the object to be transformed, should be left unchanged
* @return a transformed object
*/
public R transform(A argument);
}