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* 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,
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package org.apache.cayenne.dba.oracle;
import org.apache.cayenne.access.translator.select.QueryAssembler;
/**
* Extends the TrimmingQualifierTranslator that Cayenne normally uses for
* Oracle. Overrides doAppendPart() to wrap the qualifierBuffer in parentheses
* if it contains an "OR" expression. This avoids a bug that can happen on
* Oracle8 if the query also contains a join.
*
* @since 3.0
*/
class Oracle8QualifierTranslator extends OracleQualifierTranslator {
public Oracle8QualifierTranslator(QueryAssembler queryAssembler) {
super(queryAssembler);
}
@Override
protected void doAppendPart() {
super.doAppendPart();
if (out instanceof StringBuilder) {
StringBuilder buffer = (StringBuilder) out;
if (buffer.indexOf(" OR ") != -1) {
buffer.insert(0, '(');
buffer.append(')');
}
}
}
}