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MyBatis framework for generating dynamic SQL
/**
* Copyright 2016-2018 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 java.util.Objects;
import java.util.function.Function;
import org.mybatis.dynamic.sql.insert.InsertModel;
import org.mybatis.dynamic.sql.render.RenderingStrategy;
import org.mybatis.dynamic.sql.util.InsertMapping;
public class InsertRenderer {
private InsertModel model;
private RenderingStrategy renderingStrategy;
private InsertRenderer(Builder builder) {
model = Objects.requireNonNull(builder.model);
renderingStrategy = Objects.requireNonNull(builder.renderingStrategy);
}
public InsertStatementProvider render() {
ValuePhraseVisitor visitor = new ValuePhraseVisitor(renderingStrategy);
FieldAndValueCollector collector = model.mapColumnMappings(toFieldAndValue(visitor))
.collect(FieldAndValueCollector.collect());
return DefaultInsertStatementProvider.withRecord(model.record())
.withTableName(model.table().name())
.withColumnsPhrase(collector.columnsPhrase())
.withValuesPhrase(collector.valuesPhrase())
.build();
}
private Function toFieldAndValue(ValuePhraseVisitor visitor) {
return insertMapping -> toFieldAndValue(visitor, insertMapping);
}
private FieldAndValue toFieldAndValue(ValuePhraseVisitor visitor, InsertMapping insertMapping) {
return insertMapping.accept(visitor);
}
public static Builder withInsertModel(InsertModel model) {
return new Builder().withInsertModel(model);
}
public static class Builder {
private InsertModel model;
private RenderingStrategy renderingStrategy;
public Builder withInsertModel(InsertModel model) {
this.model = model;
return this;
}
public Builder withRenderingStrategy(RenderingStrategy renderingStrategy) {
this.renderingStrategy = renderingStrategy;
return this;
}
public InsertRenderer build() {
return new InsertRenderer<>(this);
}
}
}
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