com.viiyue.plugins.mybatis.template.builder.OrderByBuilder Maven / Gradle / Ivy
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/**
* Copyright (C) 2017 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 com.viiyue.plugins.mybatis.template.builder;
import static com.viiyue.plugins.mybatis.Constants.ORDER_BY_ASCENDING_WRAP;
import static com.viiyue.plugins.mybatis.Constants.ORDER_BY_DESCENDING_WRAP;
import com.viiyue.plugins.mybatis.metadata.Entity;
import com.viiyue.plugins.mybatis.metadata.info.OrderByInfo;
import com.viiyue.plugins.mybatis.template.builder.base.TemplateBuilder;
import com.viiyue.plugins.mybatis.utils.BuilderUtil;
/**
*
* The default sort builder, this class method will be called by reflection after
* the template syntax is parsed.
*
*
* Static template: @{this.defaultOrderBy}
*
*
Note: What is a {@code static} template?
* Is the template content that will be compiled during the startup process.
*
* @author tangxbai
* @since 1.1.0
*/
public final class OrderByBuilder extends TemplateBuilder {
private String columnName;
private String orderBy;
private String prefix;
private OrderByInfo info;
public OrderByBuilder( Entity entity ) {
super( entity );
if ( entity.hasDefaultOrderByInfo() ) {
this.info = entity.getOrderByInfo();
this.orderBy = info.getOrderBy();
this.columnName = info.getColumn().getWrappedName();
}
}
public OrderByBuilder prefix( String prefix ) {
this.prefix = BuilderUtil.getWrappedPrefix( prefix );
return this;
}
public OrderByBuilder desc() {
this.orderBy = ORDER_BY_DESCENDING_WRAP;
return this;
}
public OrderByBuilder asc() {
this.orderBy = ORDER_BY_ASCENDING_WRAP;
return this;
}
@Override
protected void finalConfirmation( Entity entity ) {
if ( entity.hasDefaultOrderByInfo() ) {
this.append( "[order by] " ).append( prefix ).append( columnName ).append( " " ).append( orderBy );
}
}
}