xmlviews.java

导出ORACLE数据库对象DDL语句的程序

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

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.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 XMLViews extends XMLNode {

	public static final String NAME="Views";

	String sqlViews="SELECT VIEW_NAME,TEXT FROM DBA_VIEWS WHERE OWNER=? ORDER BY VIEW_NAME";

	String crComparedView=	"SELECT SRC_VIEW_NAME,ATTR_NAME,SRC_ATTR_VALUE,DST_VIEW_NAME FROM COMPARE_VIEWS WHERE SRC_OWNER=? AND ATTR_NAME='MYSTYLE'";
	String upComparedView=	"SELECT SRC_VIEW_NAME,ATTR_NAME,SRC_ATTR_VALUE,DST_ATTR_VALUE FROM COMPARE_VIEWS WHERE SRC_OWNER=? AND ATTR_NAME<>'MYSTYLE'";	

	public XMLViews(){
		super();
		this.name=NAME;
	} 

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

	/**
	 * @see com.icbcsdc.ddlexp.pub.xml.nodeinfo.XMLNode#refresh()
	 */
	public void refreshDDLInfo() throws Exception{
		//System.out.println("XMLTables 1");
		//this.clear();
		JDBCPool cnn=null;
		//try {
		//XMLManager.getInstance().
		XMLDatabase db=this.getDatabase();
		if(db!=null) cnn = db.getConnPool();
		else return;

		if(db.getVersion() == XMLDatabase.VERSION_ORACLE8I){
			String sqlGenDDL = "BEGIN GEN_VIEW_DDL(?); END;";
			CallableStatement cStmt = cnn.prepareCall(sqlGenDDL);
			cStmt.setString(1,this.getSchema().name);
			cStmt.execute();
		}

		//获取View列表
		PreparedStatement pStmt=cnn.prepareStatement(sqlViews);
		pStmt.setString(1,this.getParent().getName());
		ResultSet rsViews=pStmt.executeQuery();


		while(rsViews.next()){
			XMLView view=new XMLView(rsViews.getString(1),rsViews.getString(2));
			//System.out.println(view.getName()+":"+view.getText());
			this.addChild(view);
		}
		
		pStmt.close();
		rsViews.close();
		
		/**	
		} catch (Exception e) {
			Logger.log(Logger.ERROR,e.getMessage());
		}
		**/
		//super.refresh();
	}

	/**从数据库中获取数据对象比较后的结果*/
	public void refreshChangedProperties() throws Exception{
		JDBCPool cnn=null;
		//try {
		//XMLManager.getInstance().
		XMLDatabase db=this.getDatabase();
		if(JDBCPoolManager.getInstance().isDebug()) 
			System.out.println(this.getClass().toString());
			
		if(db!=null) cnn = db.getConnPool();
		else return;

		//先创建比较节点
		PreparedStatement pStmt=cnn.prepareStatement(crComparedView);
		pStmt.setString(1,this.getParent().getName().toUpperCase());
		ResultSet rsCrViews=pStmt.executeQuery();
		while(rsCrViews.next()){
			XMLView view=null;
			byte status=XMLNode.toCompareStatus(rsCrViews.getString("SRC_ATTR_VALUE"));
			if(status==XMLNode.SRC_NULL_DST_EXIST)
				view=new XMLView(rsCrViews.getString("DST_VIEW_NAME"));
			else
				view=new XMLView(rsCrViews.getString("SRC_VIEW_NAME"));

			view.setCompareStatus(status);
			this.addChild(view);

		}
		rsCrViews.close();

		//再修改比较节点
		pStmt=cnn.prepareStatement(upComparedView);
		pStmt.setString(1,this.getParent().getName().toUpperCase());
		ResultSet rsUpViews=pStmt.executeQuery();
		while(rsUpViews.next()){
			XMLView view1=(XMLView)this.getDirectChildren(XMLNode.XML_VIEW,rsUpViews.getString("SRC_VIEW_NAME"));
			view1.putChangedProperty(rsUpViews.getString("ATTR_NAME"),rsUpViews.getString("SRC_ATTR_VALUE"),rsUpViews.getString("DST_ATTR_VALUE"));	
		}

		rsUpViews.close();
		
		/**	
		} catch (Exception e) {
			Logger.log(Logger.ERROR,e.getMessage());
		}
		**/
	}
	
	/**
	 * @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#chkChildType(XMLNode)
	 */
	public boolean chkChildType(XMLNode node) {
		if(node.getType()==XMLNode.XML_VIEW) return true;
		return false;
	}

	/**
	 * @see com.icbcsdc.ddlexp.pub.xml.nodeinfo.XMLNode#getXmlStream()
	public InputStream getXmlStream() {
		return null;
	}
	 */

	/**
	 * @see com.icbcsdc.ddlexp.pub.xml.nodeinfo.XMLNode#getSqlDDL()
	 */
	public String getSqlDDL() {
		return null;
	}

	public static void main(String[] args) {
	}
}