diff options
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/selectors/modifiedselector/Algorithm.java')
-rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/selectors/modifiedselector/Algorithm.java | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/selectors/modifiedselector/Algorithm.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/selectors/modifiedselector/Algorithm.java new file mode 100644 index 00000000..82e043b5 --- /dev/null +++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/selectors/modifiedselector/Algorithm.java @@ -0,0 +1,48 @@ +/* + * 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 + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * 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. + * + */ + +package org.apache.tools.ant.types.selectors.modifiedselector; + + +import java.io.File; + + +/** + * The <i>Algorithm</i> defines how a value for a file is computed. + * It must be sure that multiple calls for the same file results in the + * same value. + * The implementing class should implement a useful toString() method. + * + * @version 2003-09-13 + * @since Ant 1.6 + */ +public interface Algorithm { + + /** + * Checks its prerequisites. + * @return <i>true</i> if all is ok, otherwise <i>false</i>. + */ + boolean isValid(); + + /** + * Get the value for a file. + * @param file File object for which the value should be evaluated. + * @return The value for that file + */ + String getValue(File file); +} |