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* 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
* 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.
* This interface defines a method for getting the "elements" of an object, which means any objects that naturally would
* be considered to be contained by the object. So for a collection, you would expect this method to return all the
* objects in that collection; while for an ordinary object you would expect this method to return just that object.
* An implementation of this interface will often require that its target objects all be of some particular type. For
* example, the MapElementsAccessor class requires that its targets all implement the Map interface.
* @author Luke Blanshard (firstname.lastname@example.org)
* @author Drew Davidson (email@example.com)
public interface ElementsAccessor
* Returns an iterator over the elements of the given target object.
* @param target the object to get the elements of
* @return an iterator over the elements of the given object
* @exception OgnlException if there is an error getting the given object's elements
Enumeration<?> getElements( Object target ) throws OgnlException;