org.apache.openjpa.jdbc.kernel.exps.JDBCWildcardMatch Maven / Gradle / Ivy
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* 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
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* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.openjpa.jdbc.kernel.exps;
import org.apache.openjpa.jdbc.kernel.JDBCStore;
import org.apache.openjpa.jdbc.meta.ClassMapping;
import org.apache.openjpa.jdbc.sql.SQLBuffer;
import org.apache.openjpa.kernel.exps.WildcardMatch;
import org.apache.openjpa.lib.util.Localizer;
import org.apache.openjpa.util.UserException;
/**
* 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:
* "address.street.ext:wildcardMatch (\"?ain*reet\")"
*
* @nojavadoc
* @deprecated Use matches() instead.
*/
public class JDBCWildcardMatch
extends WildcardMatch
implements JDBCFilterListener {
private static final Localizer _loc = Localizer.forPackage
(JDBCWildcardMatch.class);
public void appendTo(SQLBuffer sql, FilterValue target, FilterValue[] args,
ClassMapping type, JDBCStore store) {
if (!args[0].isConstant())
throw new UserException(_loc.get("const-only", TAG));
Object val = args[0].getValue();
target.appendTo(sql);
if (val == null)
sql.append(" IS ").appendValue(null);
else {
// create a DB wildcard string by replacing '*' with '%' and
// '?' with '_'
String wild = val.toString().replace('*', '%').replace('?', '_');
sql.append(" LIKE ").appendValue(wild);
}
}
}