xmlconstraints.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.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 XMLConstraints extends XMLNode {
	public static String NAME="Constraints";
	String sqlConstraints = "select constraint_name,constraint_type,status,validated,r_owner,r_constraint_name,delete_rule from dba_constraints where owner=? and table_name=?";

	String crComparedConstraints="SELECT SRC_CONSTRAINT_NAME,ATTR_NAME,SRC_ATTR_VALUE,DST_CONSTRAINT_NAME FROM COMPARE_CONSTRAINTS WHERE SRC_OWNER=? AND SRC_TABLE_NAME=? AND ATTR_NAME='MYSTYLE'";
	String upComparedConstraints="SELECT SRC_CONSTRAINT_NAME,ATTR_NAME,SRC_ATTR_VALUE,DST_ATTR_VALUE FROM COMPARE_CONSTRAINTS WHERE SRC_OWNER=? AND SRC_TABLE_NAME=? AND ATTR_NAME<>'MYSTYLE'";
	
	public XMLConstraints(){
		this.name=NAME;
	}
	
	/**
	 * @see com.icbcsdc.ddlexp.pub.xml.nodeinfo.XMLNode#getType()
	 */
	public int getType() {
		return XMLNode.XML_CONSTRAINTS;
	}

	/**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(db!=null) cnn = db.getConnPool();
		else return;

		//先创建比较节点
		PreparedStatement pStmt=cnn.prepareStatement(crComparedConstraints);
		pStmt.setString(1,this.getSchema().getName().toUpperCase());
		pStmt.setString(2,this.getParent().getName().toUpperCase());
		ResultSet rsCrConstraints=pStmt.executeQuery();
		
		while(rsCrConstraints.next()){
			XMLConstraint constraint=null;
			byte status=XMLNode.toCompareStatus(rsCrConstraints.getString("SRC_ATTR_VALUE"));
			if(status==XMLNode.SRC_NULL_DST_EXIST)
				constraint=new XMLConstraint(rsCrConstraints.getString("DST_CONSTRAINT_NAME"));
			else
				constraint=new XMLConstraint(rsCrConstraints.getString("SRC_CONSTRAINT_NAME"));

			constraint.setCompareStatus(status);
			this.addChild(constraint);
		}
		rsCrConstraints.close();
		pStmt.close();
		
		//再修改比较节点
		PreparedStatement pStmt1=cnn.prepareStatement(upComparedConstraints);
		pStmt1.setString(1,this.getSchema().getName().toUpperCase());
		pStmt1.setString(2,this.getParent().getName().toUpperCase());
		ResultSet rsUpConstraints=pStmt1.executeQuery();

		while(rsUpConstraints.next()){
			XMLConstraint constaint1=(XMLConstraint)this.getDirectChildren(XMLNode.XML_CONSTRAINT,rsUpConstraints.getString("SRC_CONSTRAINT_NAME"));
			constaint1.putChangedProperty(rsUpConstraints.getString("ATTR_NAME"),rsUpConstraints.getString("SRC_ATTR_VALUE"),rsUpConstraints.getString("DST_ATTR_VALUE"));				
		}

		rsUpConstraints.close();
		pStmt1.close();						
		/**
		} catch (Exception e) {
			Logger.log(Logger.ERROR,e.getMessage());
		}
		**/
	}
	
	/**从数据库中获取数据对象定义*/
	public void refreshDDLInfo()throws Exception{
		JDBCPool cnn=null;

		XMLDatabase db=this.getDatabase();
		if(JDBCPoolManager.getInstance().isDebug()) 
			System.out.println(this.getClass().toString());
			
		if(db!=null) cnn = db.getConnPool();
		else return;

		//获取约束列表
		PreparedStatement pStmt=cnn.prepareStatement(sqlConstraints);
		
		pStmt.setString(1,this.getParent().getParent().getParent().getName().toUpperCase());
		pStmt.setString(2,this.getParent().getName().toUpperCase());

		ResultSet rsConstraints=pStmt.executeQuery();


		while(rsConstraints.next()){
			XMLConstraint constraint=new XMLConstraint(rsConstraints.getString(1),
													   rsConstraints.getString(2),
													   rsConstraints.getString(3),
													   rsConstraints.getString(4),
													   rsConstraints.getString(5),
													   rsConstraints.getString(6),
													   rsConstraints.getString(7)
													   );
													   
			constraint.setCompareStatus(ComparedNode.NO_COMPARED);
			this.addChild(constraint);
			//constraint.refresh();
		}
		
		rsConstraints.close();
		pStmt.close();			
	}


	/**
	 * @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_CONSTRAINT) 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) {
	}
}