org.mybatis.dynamic.sql.insert.render.BatchInsertRenderer Maven / Gradle / Ivy
/**
* Copyright 2016-2019 the original author or authors.
*
* 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 org.mybatis.dynamic.sql.insert.render;
import static org.mybatis.dynamic.sql.util.StringUtilities.spaceBefore;
import java.util.Objects;
import org.mybatis.dynamic.sql.insert.BatchInsertModel;
import org.mybatis.dynamic.sql.render.RenderingStrategy;
public class BatchInsertRenderer {
private BatchInsertModel model;
private RenderingStrategy renderingStrategy;
private BatchInsertRenderer(Builder builder) {
model = Objects.requireNonNull(builder.model);
renderingStrategy = Objects.requireNonNull(builder.renderingStrategy);
}
public BatchInsert render() {
ValuePhraseVisitor visitor = new ValuePhraseVisitor(renderingStrategy);
FieldAndValueCollector collector = model.mapColumnMappings(MultiRowRenderingUtilities.toFieldAndValue(visitor))
.collect(FieldAndValueCollector.collect());
return BatchInsert.withRecords(model.records())
.withInsertStatement(calculateInsertStatement(collector))
.build();
}
private String calculateInsertStatement(FieldAndValueCollector collector) {
return "insert into" //$NON-NLS-1$
+ spaceBefore(model.table().tableNameAtRuntime())
+ spaceBefore(collector.columnsPhrase())
+ spaceBefore(collector.valuesPhrase());
}
public static Builder withBatchInsertModel(BatchInsertModel model) {
return new Builder().withBatchInsertModel(model);
}
public static class Builder {
private BatchInsertModel model;
private RenderingStrategy renderingStrategy;
public Builder withBatchInsertModel(BatchInsertModel model) {
this.model = model;
return this;
}
public Builder withRenderingStrategy(RenderingStrategy renderingStrategy) {
this.renderingStrategy = renderingStrategy;
return this;
}
public BatchInsertRenderer build() {
return new BatchInsertRenderer<>(this);
}
}
}