/*
* Copyright 2008 The Apache Software Foundation
*
* 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.generator.codegen.ibatis2.dao.elements;
import static org.mybatis.generator.internal.util.JavaBeansUtil.getSetterMethodName;
import java.util.Set;
import java.util.TreeSet;
import org.mybatis.generator.api.IntrospectedColumn;
import org.mybatis.generator.api.dom.java.FullyQualifiedJavaType;
import org.mybatis.generator.api.dom.java.Interface;
import org.mybatis.generator.api.dom.java.JavaVisibility;
import org.mybatis.generator.api.dom.java.Method;
import org.mybatis.generator.api.dom.java.Parameter;
import org.mybatis.generator.api.dom.java.TopLevelClass;
/**
*
* @author Jeff Butler
*
*/
public class SelectByPrimaryKeyMethodGenerator extends AbstractDAOElementGenerator {
public SelectByPrimaryKeyMethodGenerator() {
super();
}
@Override
public void addImplementationElements(TopLevelClass topLevelClass) {
Set<FullyQualifiedJavaType> importedTypes = new TreeSet<FullyQualifiedJavaType>();
Method method = getMethodShell(importedTypes);
// generate the implementation method
StringBuilder sb = new StringBuilder();
if (!introspectedTable.getRules().generatePrimaryKeyClass()) {
// no primary key class, but primary key is enabled. Primary
// key columns must be in the base class.
FullyQualifiedJavaType keyType = new FullyQualifiedJavaType(introspectedTable.getBaseRecordType());
topLevelClass.addImportedType(keyType);
sb.setLength(0);
sb.append(keyType.getShortName());
sb.append(" _key = new "); //$NON-NLS-1$
sb.append(keyType.getShortName());
sb.append("();"); //$NON-NLS-1$
method.addBodyLine(sb.toString());
for (IntrospectedColumn introspectedColumn : introspectedTable.getPrimaryKeyColumns()) {
sb.setLength(0);
sb.append("_key."); //$NON-NLS-1$
sb.append(getSetterMethodName(introspectedColumn.getJavaProperty()));
sb.append('(');
sb.append(introspectedColumn.getJavaProperty());
sb.append(");"); //$NON-NLS-1$
method.addBodyLine(sb.toString());
}
}
FullyQualifiedJavaType returnType = method.getReturnType();
sb.setLength(0);
sb.append(returnType.getShortName());
sb.append(" record = ("); //$NON-NLS-1$
sb.append(returnType.getShortName());
sb.append(") "); //$NON-NLS-1$
sb.append(daoTemplate.getQueryForObjectMethod(introspectedTable.getIbatis2SqlMapNamespace(),
introspectedTable.getSelectByPrimaryKeyStatementId(), "_key")); //$NON-NLS-1$
method.addBodyLine(sb.toString());
method.addBodyLine("return record;"); //$NON-NLS-1$
if (context.getPlugins().clientSelectByPrimaryKeyMethodGenerated(method, topLevelClass, introspectedTable)) {
topLevelClass.addImportedTypes(importedTypes);
topLevelClass.addMethod(method);
}
}
@Override
public void addInterfaceElements(Interface interfaze) {
Set<FullyQualifiedJavaType> importedTypes = new TreeSet<FullyQualifiedJavaType>();
Method method = getMethodShell(importedTypes);
context.getCommentGenerator().addGeneralMethodComment(method, introspectedTable, "根据主键查询记录");
if (context.getPlugins().clientSelectByPrimaryKeyMethodGenerated(method, interfaze, introspectedTable)) {
interfaze.addImportedTypes(importedTypes);
interfaze.addMethod(method);
}
}
private Method getMethodShell(Set<FullyQualifiedJavaType> importedTypes) {
Method method = new Method();
method.setVisibility(JavaVisibility.PUBLIC);
FullyQualifiedJavaType returnType = introspectedTable.getRules().calculateAllFieldsClass();
method.setReturnType(returnType);
importedTypes.add(returnType);
method.setName(getDAOMethodNameCalculator().getSelectByPrimaryKeyMethodName(introspectedTable));
if (introspectedTable.getRules().generatePrimaryKeyClass()) {
FullyQualifiedJavaType type = new FullyQualifiedJavaType(introspectedTable.getPrimaryKeyType());
importedTypes.add(type);
method.addParameter(new Parameter(type, "_key")); //$NON-NLS-1$
} else {
for (IntrospectedColumn introspectedColumn : introspectedTable.getPrimaryKeyColumns()) {
FullyQualifiedJavaType type = introspectedColumn.getFullyQualifiedJavaType();
importedTypes.add(type);
method.addParameter(new Parameter(type, introspectedColumn.getJavaProperty()));
}
}
for (FullyQualifiedJavaType fqjt : daoTemplate.getCheckedExceptions()) {
method.addException(fqjt);
importedTypes.add(fqjt);
}
context.getCommentGenerator().addGeneralMethodComment(method, introspectedTable);
return method;
}
}