org.camunda.bpm.engine.impl.javax.el.FunctionMapper Maven / Gradle / Ivy
/*
* Based on JUEL 2.2.1 code, 2006-2009 Odysseus Software GmbH
*
* 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.camunda.bpm.engine.impl.javax.el;
import java.lang.reflect.Method;
/**
* The interface to a map between EL function names and methods. A FunctionMapper maps
* ${prefix:name()} style functions to a static method that can execute that function.
*/
public abstract class FunctionMapper {
/**
* Resolves the specified prefix and local name into a java.lang.Method. Returns null if no
* function could be found that matches the given prefix and local name.
*
* @param prefix
* the prefix of the function, or "" if no prefix. For example, "fn" in
* ${fn:method()}, or "" in ${method()}.
* @param localName
* the short name of the function. For example, "method" in ${fn:method()}.
* @return the static method to invoke, or null if no match was found.
*/
public abstract Method resolveFunction(String prefix, String localName);
}