]> gerrit.simantics Code Review - simantics/platform.git/blob - bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/views/IFilterStrategy.java
Fixed multiple issues causing dangling references to discarded queries
[simantics/platform.git] / bundles / org.simantics.browsing.ui.common / src / org / simantics / browsing / ui / common / views / IFilterStrategy.java
1 /*******************************************************************************
2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
3  * in Industry THTH ry.
4  * All rights reserved. This program and the accompanying materials
5  * are made available under the terms of the Eclipse Public License v1.0
6  * which accompanies this distribution, and is available at
7  * http://www.eclipse.org/legal/epl-v10.html
8  *
9  * Contributors:
10  *     VTT Technical Research Centre of Finland - initial API and implementation
11  *******************************************************************************/
12 package org.simantics.browsing.ui.common.views;
13
14 import java.util.regex.Pattern;
15
16 import org.simantics.browsing.ui.common.processors.FilterSelectionRequestQueryProcessor;
17
18 /**
19  * This is an interface for specifying a strategy for converting client-specified
20  * search strings into regular expressions (see {@link Pattern}), that are used
21  * to filter non-matches out of shown results.
22  * 
23  * @author Tuukka Lehtonen
24  * 
25  * @see FilterSelectionRequestQueryProcessor
26  * @see Pattern
27  */
28 public interface IFilterStrategy {
29
30     /**
31      * @param filterText the client-specified filter text
32      * @return a regular expression String adhering to the specifications of
33      *         {@link Pattern} or <code>null</code> to denote <em>no filter</em>.
34      */
35     String toPatternString(String filterText);
36
37 }