xmltabcomment.java

导出ORACLE数据库对象DDL语句的程序

package com.icbcsdc.ddlexp.pub.xml.nodeinfo;


import java.io.InputStream;
import java.sql.CallableStatement;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

import com.icbcsdc.ddlexp.pub.staticLog.Logger;
import com.icbcsdc.ddlexp.pub.connectionpool.JDBCCnn;
import com.icbcsdc.ddlexp.pub.connectionpool.JDBCException;
import com.icbcsdc.ddlexp.pub.connectionpool.JDBCPool;
import com.icbcsdc.ddlexp.pub.connectionpool.JDBCPoolManager;

/**
 * @author zhangyc
 *
 * To change this generated comment edit the template variable "typecomment":
 * Window>Preferences>Java>Templates.
 * To enable and disable the creation of type comments go to
 * Window>Preferences>Java>Code Generation.
 */
public class XMLTabComment extends XMLNode{
	public static String NAME="TableComment";
	String rsComparedTablecomments="SELECT  ATTR_NAME,SRC_ATTR_VALUE,DST_ATTR_VALUE FROM COMPARE_TABLECOMMENTS WHERE SRC_OWNER = ? AND SRC_TABLE_NAME = ? AND ATTR_NAME<>'MYSTYLE' ";
	String rsComparedTablecommentStatus="SELECT SRC_ATTR_VALUE FROM COMPARE_TABLECOMMENTS WHERE SRC_OWNER = ? AND SRC_TABLE_NAME = ? AND ATTR_NAME='MYSTYLE' ";
	String sqlCompareColumncomments="SELECT COUNT(*) FROM COMPARE_COLUMNCOMMENTS WHERE SRC_OWNER=? AND SRC_TABLE_NAME=?";

	
	private String comment=null;
	
	/**
	 * Constructor for OracleDatFile.
	 */
	public XMLTabComment() {
		this.name = NAME;
	}

	/**
	 * Constructor for OracleDatFile.
	 */
	public XMLTabComment(String comment) {
		super();		
		this.name = NAME;
		this.comment = comment;
	}

	/**
	 * @see com.icbcsdc.ddlexp.pub.xml.nodeinfo.XMLNode#getType()
	 */
	public int getType() {
		return XMLNode.XML_TABCOMMENT;
	}

	/**
	 * @see com.icbcsdc.ddlexp.pub.xml.nodeinfo.XMLNode#chkChildType(XMLNode)
	 */
	public boolean chkChildType(XMLNode node) {
		return false;
	}


	/**从数据库中获取数据对象比较后的结果*/
	public void refreshChangedProperties() throws Exception{
			/**compare_tabcomment_lines相关的信息放到容器changedProperties中*/
			JDBCPool cnn=null;
			//try {
			//XMLManager.getInstance().
			XMLDatabase db=this.getDatabase();
			if(db!=null) cnn = db.getConnPool();
			else return;
			
			PreparedStatement pStmtstatus=cnn.prepareStatement(rsComparedTablecommentStatus);
			pStmtstatus.setString(1,this.getSchema().getName().toUpperCase());
			pStmtstatus.setString(2,this.getParent().getName().toUpperCase());
			ResultSet rsCrTableCommentstatus=pStmtstatus.executeQuery();
		
			while(rsCrTableCommentstatus.next()){
				//XMLTabComment tablecomment=null;
				byte status=XMLNode.toCompareStatus(rsCrTableCommentstatus.getString("SRC_ATTR_VALUE"));
				this.setCompareStatus(status);
			}
			rsCrTableCommentstatus.close();
			pStmtstatus.close();

			//再修改比较节点
			PreparedStatement pStmt=cnn.prepareStatement(rsComparedTablecomments);
			pStmt.setString(1,this.getSchema().getName().toUpperCase());
			pStmt.setString(2,this.getParent().getName().toUpperCase());
			ResultSet rsUpTablecomments=pStmt.executeQuery();

			while(rsUpTablecomments.next()){
				//XMLTablecomment tabcomment1=(XMLTablecomment)this.getDirectChildren(XMLNode.XML_TABCOMMENT,rsUpTablecomments.getString("SRC_TABCOMMENT_NAME"));
				this.putChangedProperty(this.getParent().getName(),rsUpTablecomments.getString("SRC_ATTR_VALUE"),rsUpTablecomments.getString("DST_ATTR_VALUE"));				
			}
			rsUpTablecomments.close();
			pStmt.close();						
		
	}
	
	/**从数据库中获取数据对象定义*/
	public void refreshDDLInfo(){
	}


	/**
	 * @see com.icbcsdc.ddlexp.pub.xml.nodeinfo.XMLNode#refresh()
	 */
	public void refresh() throws Exception{
		refreshNodeNeedAccessDB();		
		super.refresh();
	}

	/**
	 * @see com.icbcsdc.ddlexp.pub.xml.nodeinfo.XMLNode#getSqlDDL()
	 */
	public String getSqlDDL() {
		//return this.getSchemaDependentDDLStr();
		String tabName2 = this.getTable().name.toUpperCase();
		String tabOwner2 = this.getSchema().name.toUpperCase();
		return "COMMENT ON COLUMN "+tabOwner2+"."+tabName2+" '"+this.comment+"'";
	}

	public String getAlterSQL(){
		//return this.getSchemaDependentDDLStr();
		String tabName2 = this.getTable().name.toUpperCase();
		String tabOwner2 = this.getSchema().name.toUpperCase();
		return "COMMENT ON COLUMN "+tabOwner2+"."+tabName2+" '"+this.getChangedPropertyNewValue("COMMENTS")+"'";
	
	}
	
	/**
	 * Returns the fileSize.
	 * @return long
	 */
	public String getComment() {
		return comment;
	}


}