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MyBatis framework for generating dynamic SQL
/**
* 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.update;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import java.util.function.Function;
import java.util.stream.Stream;
import org.jetbrains.annotations.NotNull;
import org.mybatis.dynamic.sql.SqlTable;
import org.mybatis.dynamic.sql.render.RenderingStrategy;
import org.mybatis.dynamic.sql.update.render.UpdateRenderer;
import org.mybatis.dynamic.sql.update.render.UpdateStatementProvider;
import org.mybatis.dynamic.sql.util.UpdateMapping;
import org.mybatis.dynamic.sql.where.WhereModel;
public class UpdateModel {
private SqlTable table;
private WhereModel whereModel;
private List columnMappings;
private UpdateModel(Builder builder) {
table = Objects.requireNonNull(builder.table);
whereModel = builder.whereModel;
columnMappings = Objects.requireNonNull(builder.columnMappings);
}
public SqlTable table() {
return table;
}
public Optional whereModel() {
return Optional.ofNullable(whereModel);
}
public Stream mapColumnMappings(Function mapper) {
return columnMappings.stream().map(mapper);
}
@NotNull
public UpdateStatementProvider render(RenderingStrategy renderingStrategy) {
return UpdateRenderer.withUpdateModel(this)
.withRenderingStrategy(renderingStrategy)
.build()
.render();
}
public static Builder withTable(SqlTable table) {
return new Builder().withTable(table);
}
public static class Builder {
private SqlTable table;
private WhereModel whereModel;
private List columnMappings = new ArrayList<>();
public Builder withTable(SqlTable table) {
this.table = table;
return this;
}
public Builder withColumnMappings(List columnMappings) {
this.columnMappings.addAll(columnMappings);
return this;
}
public Builder withWhereModel(WhereModel whereModel) {
this.whereModel = whereModel;
return this;
}
public UpdateModel build() {
return new UpdateModel(this);
}
}
}