edu.wpi.cs.DSRG.xmldb.operators
Class pushUpNestingObject

java.lang.Object
  |
  +--edu.wpi.cs.DSRG.xmldb.operators.pushUpNestingObject

All Implemented Interfaces:

Operator

public class pushUpNestingObject

extends java.lang.Object

implements Operator

pushUpNestingObject.java will move up a nesting relationship along the DTD structure constructor: public pushUpNestingObject(JDBCClient client, String MovedItemName, String ChildItemName, int FromPosition, String ParentItemName, int ParentPosition, int ToPosition, String DTD_URI) member variables: client - used to connect to oracle MovedItemName - the name of the item to be moved ChildItemName - the name of the child item ParentItemName - the name of the parent item ParentPosition - the parent nesting position FromPosition - the original nesting position ToPosition - the final nesting position DTD_URI - the location of the DTD DTD_ID - the id specifying which DTD to modify myID - the operator's id oldView - the old view rs - the resultset used for processing queries member functions: execute() - executes the queries

Field Summary

(package private) java.lang.String	ChildItemName
(package private) JDBCClient	client
(package private) java.lang.String	DTD_ID
(package private) java.lang.String	DTD_URI
(package private) int	FromPosition
(package private) java.lang.String	MovedItemName
(package private) int	myID
(package private) java.lang.String	oldView
(package private) java.lang.String	ParentItemName
(package private) int	ParentPosition
(package private) java.sql.ResultSet	rs
(package private) int	ToPosition

Constructor Summary

pushUpNestingObject(JDBCClient client, java.lang.String MovedItemName, java.lang.String ChildItemName, int FromPosition, java.lang.String ParentItemName, int ParentPosition, int ToPosition, java.lang.String DTD_URI, int myID)
This constructor is used with an existing connection and initializes the instance variables with the arguments passed.

Method Summary

void	execute() The method execute() evaluates all the necessary queries to change the DTDMs and create new views on the data tables.

Methods inherited from class java.lang.Object

, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait

Field Detail

client

JDBCClient client

MovedItemName

java.lang.String MovedItemName

ChildItemName

java.lang.String ChildItemName

ParentItemName

java.lang.String ParentItemName

FromPosition

int FromPosition

ParentPosition

int ParentPosition

ToPosition

int ToPosition

DTD_URI

java.lang.String DTD_URI

DTD_ID

java.lang.String DTD_ID

myID

int myID

oldView

java.lang.String oldView

rs

java.sql.ResultSet rs

Constructor Detail

pushUpNestingObject

public pushUpNestingObject(JDBCClient client,
                           java.lang.String MovedItemName,
                           java.lang.String ChildItemName,
                           int FromPosition,
                           java.lang.String ParentItemName,
                           int ParentPosition,
                           int ToPosition,
                           java.lang.String DTD_URI,
                           int myID)

This constructor is used with an existing connection and initializes the instance variables with the arguments passed.

Parameters:

client - JDBCClient connection to the database

MovedItemName - String name of item to be moved

ChildItemName - String name of the item that contains the moving item

FromPosition - int position of the moving item within its parent

ParentItemName - String name of the item that is parent the the item that contains the moving item

ParentPosition - int position of the parent item to its siblings

ToPosition - int position to move the item into within the new parent item

DTD_URI - String URI of the DTD that defines these items

myID - int The internal id of this pushUpNestingObject object

Method Detail

execute

public void execute()
             throws java.lang.Exception

The method execute() evaluates all the necessary queries to change the DTDMs and create new views on the data tables.

Specified by:

execute in interface Operator