com.yqjr.framework.component.mybatis.UpdateElementGenerator Maven / Gradle / Ivy
package com.yqjr.framework.component.mybatis;
import org.mybatis.generator.api.IntrospectedColumn;
import org.mybatis.generator.api.dom.java.FullyQualifiedJavaType;
import org.mybatis.generator.api.dom.xml.Attribute;
import org.mybatis.generator.api.dom.xml.TextElement;
import org.mybatis.generator.api.dom.xml.XmlElement;
import org.mybatis.generator.codegen.mybatis3.ListUtilities;
import org.mybatis.generator.codegen.mybatis3.MyBatis3FormattingUtilities;
import org.mybatis.generator.codegen.mybatis3.xmlmapper.elements.AbstractXmlElementGenerator;
/**
* ClassName: InsertElementGenerator
* Description: 参考UpdateByExampleSelectiveElementGenerator,并根据框架实际情况修改
* Create By: admin
* Create Date: 2017年5月12日 上午8:20:49
* Modified By:
* Modified Date:
* Modified Content:
* Version: 1.0
*/
public class UpdateElementGenerator extends AbstractXmlElementGenerator {
public UpdateElementGenerator() {
super();
}
@Override
public void addElements(XmlElement parentElement) {
XmlElement answer = new XmlElement("update"); //$NON-NLS-1$
answer.addAttribute(new Attribute("id", "update")); //$NON-NLS-1$
FullyQualifiedJavaType parameterType = introspectedTable.getRules().calculateAllFieldsClass();
answer.addAttribute(new Attribute("parameterType", //$NON-NLS-1$
parameterType.getFullyQualifiedName()));
context.getCommentGenerator().addComment(answer);
StringBuilder sb = new StringBuilder();
sb.append("update "); //$NON-NLS-1$
sb.append(introspectedTable.getAliasedFullyQualifiedTableNameAtRuntime());
answer.addElement(new TextElement(sb.toString()));
XmlElement dynamicElement = new XmlElement("set"); //$NON-NLS-1$
answer.addElement(dynamicElement);
for (IntrospectedColumn introspectedColumn : ListUtilities
.removeGeneratedAlwaysColumns(introspectedTable.getAllColumns())) {
// update字段时排除ID字段
if (introspectedColumn.getActualColumnName().equalsIgnoreCase(context.getProperty("tableIdColumn"))) {
continue;
}
XmlElement isNotNullElement = new XmlElement("if"); //$NON-NLS-1$
sb.setLength(0);
sb.append(introspectedColumn.getJavaProperty("")); //$NON-NLS-1$
sb.append(" != null"); //$NON-NLS-1$
isNotNullElement.addAttribute(new Attribute("test", sb.toString())); //$NON-NLS-1$
dynamicElement.addElement(isNotNullElement);
sb.setLength(0);
sb.append(MyBatis3FormattingUtilities.getAliasedEscapedColumnName(introspectedColumn));
sb.append(" = "); //$NON-NLS-1$
sb.append(FrameworkJavaTypeResolver.getJavaProperty(introspectedColumn, true));
sb.append(',');
isNotNullElement.addElement(new TextElement(sb.toString()));
}
// 添加where条件
XmlElement whereElement = new XmlElement("where");
String idColumns = context.getProperty("tableIdColumn");
String idProperty = context.getProperty("tableIdProperty");
sb.setLength(0);
sb.append(String.format("%s = #{%s}", idColumns, idProperty));
whereElement.addElement(new TextElement(sb.toString()));
answer.addElement(whereElement);
parentElement.addElement(answer);
}
}