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Java > Open Source Codes > org > apache > tools > ant > taskdefs > condition > Condition


1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  */
18
19 package org.apache.tools.ant.taskdefs.condition;
20
21 import org.apache.tools.ant.BuildException;
22
23 /**
24  * Interface for conditions to use inside the <condition> task.
25  *
26  */
27 public interface Condition {
28     /**
29      * Is this condition true?
30      * @return true if the condition is true
31      * @exception BuildException if an error occurs
32      */
33     boolean eval() throws BuildException;
34 }
35
36
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