Package org.apache.openjpa.kernel.exps

Source Code of org.apache.openjpa.kernel.exps.WildcardMatch

/*
* 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.openjpa.kernel.exps;

import org.apache.openjpa.kernel.StoreContext;
import org.apache.openjpa.lib.util.SimpleRegex;

/**
* Tests if the target matches the wildcard expression given in the
* argument. The wildcard '?' is used to represent any single character,
* while '*' is used to represent any series of 0 or more characters.
*  Examples:<br />
* <code> "address.street.ext:wildcardMatch (\"?ain*reet\")"
* </code>
*
* @deprecated Use <code>matches()</code> instead.
* @nojavadoc
*/
public class WildcardMatch
    implements FilterListener {

    public static final String TAG = "wildcardMatch";

    public String getTag() {
        return TAG;
    }

    public boolean expectsArguments() {
        return true;
    }

    public boolean expectsTarget() {
        return true;
    }

    public Object evaluate(Object target, Class targetClass, Object[] args,
        Class[] argClasses, Object candidate, StoreContext ctx) {
        if (target == null || args[0] == null)
            return Boolean.FALSE;

        // create a regexp for the wildcard expression by subbing '.' for '?'
        // and '.*' for '*'
        String wild = args[0].toString().replace('?', '.');
        for (int st = 0, i; (i = wild.indexOf("*", st)) != -1; st = i + 3)
            wild = wild.substring(0, i) + "." + wild.substring(i);

        SimpleRegex re = new SimpleRegex(wild, false);
        return (re.matches(target.toString())) ? Boolean.TRUE : Boolean.FALSE;
    }

    public Class getType(Class targetClass, Class[] argClasses) {
        return boolean.class;
    }
}
TOP

Related Classes of org.apache.openjpa.kernel.exps.WildcardMatch

TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.