1 package org.codehaus.plexus.interpolation;
2
3 /*
4 * Copyright 2001-2008 Codehaus Foundation.
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 /**
20 * Tracks the most recent expression processed by this value source implementation.
21 * This can be useful if the most recent expression is meant to modify the current
22 * one.
23 */
24 public interface QueryEnabledValueSource extends ValueSource {
25
26 /**
27 * @return the most recent expression processed by this value source, or null.
28 */
29 String getLastExpression();
30 }