com.blazebit.persistence.impl.function.stringxmlagg.OracleGroupConcatBasedStringXmlAggFunction Maven / Gradle / Ivy
/*
* Copyright 2014 - 2020 Blazebit.
*
* Licensed 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 com.blazebit.persistence.impl.function.stringxmlagg;
import com.blazebit.persistence.impl.function.concat.ConcatFunction;
import com.blazebit.persistence.impl.function.groupconcat.AbstractGroupConcatFunction;
import com.blazebit.persistence.impl.function.replace.ReplaceFunction;
/**
* @author Christian Beikov
* @since 1.5.0
*/
public class OracleGroupConcatBasedStringXmlAggFunction extends GroupConcatBasedStringXmlAggFunction {
public OracleGroupConcatBasedStringXmlAggFunction(AbstractGroupConcatFunction groupConcatFunction, ReplaceFunction replaceFunction, ConcatFunction concatFunction) {
super(groupConcatFunction, replaceFunction, concatFunction);
}
@Override
protected String coalesceStart() {
return "nullif(";
}
@Override
protected String coalesceEnd(String field) {
return "," + concatFunction.startConcat() + "'<'" + concatFunction.concatSeparator() + field + concatFunction.concatSeparator() + "'>'" + concatFunction.endConcat() + ")";
}
}