001    /*
002     * Copyright 2002-2005 the original author or authors.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License"); you may not
005     * use this file except in compliance with the License. You may obtain a copy of
006     * the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
012     * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
013     * License for the specific language governing permissions and limitations under
014     * the License.
015     */
016    package org.springframework.binding.value.support;
017    
018    import org.springframework.binding.value.ValueModel;
019    
020    /**
021     * A value model that wraps another value model, possibly adding additional
022     * functionality such as type conversion or buffering.
023     *
024     * @author Keith Donald
025     * @author Oliver Hutchison
026     */
027    public interface ValueModelWrapper {
028    
029            /**
030             * Returns the <code>ValueModel</code> wrapped by this
031             * <code>ValueModelWrapper</code>.
032             *
033             * @return the wrapped value model.
034             */
035            ValueModel getWrappedValueModel();
036    
037            /**
038             * Returns the inner most <code>ValueModel</code> wrapped by this
039             * <code>ValueModelWrapper</code>.
040             *
041             * @return the inner most wrapped value model.
042             */
043            ValueModel getInnerMostWrappedValueModel();
044    }