com.viiyue.plugins.mybatis.template.builder.ColumnsBuilder 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 org.apache.ibatis.mapping.SqlCommandType;
import com.viiyue.plugins.mybatis.Constants;
import com.viiyue.plugins.mybatis.metadata.Column;
import com.viiyue.plugins.mybatis.metadata.Entity;
import com.viiyue.plugins.mybatis.metadata.Property;
import com.viiyue.plugins.mybatis.template.builder.base.TemplateBuilder;
import com.viiyue.plugins.mybatis.utils.BuilderUtil;
import com.viiyue.plugins.mybatis.utils.PropertyFilter;
import com.viiyue.plugins.mybatis.utils.StatementUtil;
/**
*
* Databse column builder, this class method will be called by reflection after
* the template syntax is parsed.
*
*
Static template:
* @{this.columns}
* @{this.columns.xxx}
*
*
* 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 ColumnsBuilder extends TemplateBuilder {
private final PropertyFilter filter;
private boolean useNameAlias;
private String prefix;
public ColumnsBuilder( Entity entity, SqlCommandType commandType ) {
super( entity );
this.filter = new PropertyFilter( entity, commandType );
this.useNameAlias = StatementUtil.isSelect( commandType );
}
public ColumnsBuilder prefix( String prefix ) {
this.prefix = BuilderUtil.getWrappedPrefix( prefix );
return this;
}
public ColumnsBuilder dynamic( Object parameterObject ) {
this.filter.dynamic( parameterObject );
return this;
}
public ColumnsBuilder include( String includes ) {
this.filter.includes( includes );
return this;
}
public ColumnsBuilder exclude( String excludes ) {
this.filter.excludes( excludes );
return this;
}
@Override
protected void finalConfirmation( Entity entity ) {
for ( Property property : entity.getProperties() ) {
if ( filter.isEffective( property ) ) {
Column column = property.getColumn();
this.addDelimiter( Constants.SEPARATOR );
this.append( prefix );
this.append( useNameAlias ? column.getWrappedNameWithAlias() : column.getWrappedName() );
}
}
}
}