com.wavemaker.runtime.data.hql.UpdateQueryBuilder Maven / Gradle / Ivy
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* Copyright (C) 2022-2023 WaveMaker, Inc.
*
* 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.wavemaker.runtime.data.hql;
import java.util.HashMap;
import java.util.Map;
import java.util.stream.Collectors;
import org.apache.commons.lang3.tuple.ImmutablePair;
import com.wavemaker.runtime.data.filter.WMQueryInfo;
import com.wavemaker.runtime.data.filter.WMQueryParamInfo;
/**
* @author Dilip Kumar
* @since 8/5/18
*/
public class UpdateQueryBuilder extends QueryBuilder {
private Map setters = new HashMap<>();
public UpdateQueryBuilder(final Class entityClass) {
super(entityClass);
}
public UpdateQueryBuilder withSetter(String fieldName, Object value) {
this.setters.put(fieldName, value);
return this;
}
public WMQueryInfo build() {
Map parameters = new HashMap<>();
String query = "update " +
generateFromClause(parameters, true) +
generateSetClause(parameters) +
generateWhereClause(parameters);
return new WMQueryInfo(query, parameters);
}
private String generateSetClause(Map parameters) {
return (setters.entrySet().stream()
.map(entry -> ImmutablePair.of(entry, "wm_setter_" + entry.getKey()))
.peek(pair -> parameters.put(pair.getRight(), new WMQueryParamInfo(pair.getLeft().getValue())))
.map(pair -> pair.getLeft().getKey() + " = :" + pair.getRight())
.collect(Collectors.joining(", ", " set ", " ")));
}
}