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1   package org.codehaus.plexus.interpolation.fixed;
2   
3   /*
4    * Copyright 2014 The 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  public interface FixedValueSource {
20      /**
21       * @param expression The expression.
22       * @param interpolationState {@link InterpolationState}.
23       * @return the value related to the expression, or null if not found (not available
24       * from this source)
25       */
26      public Object getValue(String expression, InterpolationState interpolationState);
27  }