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/*
 * $Id: Searchable.java 2948 2008-06-16 15:02:14Z kleopatra $
 *
 * Copyright 2004 Sun Microsystems, Inc., 4150 Network Circle,
 * Santa Clara, California 95054, U.S.A. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

package org.jdesktop.swingx.search;

import java.util.regex.Pattern;

/**
 * Interface that used to implement search logic in all the search capable 
 * components. 
 *
 * @author Ramesh Gupta
 */
public interface Searchable {

    /**
     * Search searchString from the beginning of a document.
     *
     * @param searchString String we should find in a document.
     *
     * @return index of matched String or -1 if a match cannot be found.
     */
    public int search(String searchString);
    
    /**
     * Search searchString from the given position in a document.
     *
     * @param searchString String we should find in a document.
     * @param startIndex Start position in a document or -1 if we want to search from the beginning.
     *
     * @return index of matched String or -1 if a match cannot be found.
     */
    public int search(String searchString, int startIndex);

    /**
     * Search searchString in the given direction from the some position in a document.
     *
     * @param searchString String we should find in a document.
     * @param startIndex Start position in a document or -1 if we want to search from the beginning.
     * @param backward Indicates search direction, will search from the given position towards the 
     *                 beginning of a document if this parameter is true.
     *
     * @return index of matched String or -1 if a match cannot be found.
     */
    public int search(String searchString, int startIndex, boolean backward);
    
    /**
     * Search for the pattern from the beginning of the document.
     *
     * @param pattern Pattern for search
     *
     * @return  index of matched Pattern or -1 if a match cannot be found.
     */
    public int search(Pattern pattern);

    /**
     * Search for the pattern from the start index.
     * @param pattern Pattern for search
     * @param startIndex starting index of search. If -1 then start from the beginning
     * @return index of matched pattern or -1 if a match cannot be found.
     */
    public int search(Pattern pattern, int startIndex);

    /**
     * Search for the pattern from the start index.
     * @param pattern Pattern for search
     * @param startIndex starting index of search. If -1 then start from the beginning
     * @param backward indicates the direction if true then search is backwards
     * @return index of matched pattern or -1 if a match cannot be found.
     */
    public int search(Pattern pattern, int startIndex, boolean backward);
}