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

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

All Implemented Interfaces:

Operator

public class pushUpAttributeObject

extends java.lang.Object

implements Operator

pushUpAttributeObject.java will move attribute b of item B as attribute a of item A constructor: public pushUpAttributeObject(JDBCClient client, String ChildItemName, String ChildAttributeName, String ParentItemName, String ParentAttributeName, String DTD_URI, int myID) member variables: client - used to connect to oracle ChildItemName - the name of the child item ChildAttributeName - the name of the child attribute ParentItemName - the name of the parent item ParentAttributeName - the name of the parent attribute 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	ChildAttributeName
(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	myID
(package private) java.lang.String	oldView
(package private) java.lang.String	ParentAttributeName
(package private) java.lang.String	ParentItemName
(package private) java.sql.ResultSet	rs

Constructor Summary

pushUpAttributeObject(JDBCClient client, java.lang.String ChildItemName, java.lang.String ChildAttributeName, java.lang.String ParentItemName, java.lang.String ParentAttributeName, java.lang.String DTD_URI, int myID)
This constructor is used with an existing connection and initializes all its instance variables to the passed arguments.

Method Summary

void	execute() The method execute() evaluates 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

ChildItemName

java.lang.String ChildItemName

ChildAttributeName

java.lang.String ChildAttributeName

ParentItemName

java.lang.String ParentItemName

ParentAttributeName

java.lang.String ParentAttributeName

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

pushUpAttributeObject

public pushUpAttributeObject(JDBCClient client,
                             java.lang.String ChildItemName,
                             java.lang.String ChildAttributeName,
                             java.lang.String ParentItemName,
                             java.lang.String ParentAttributeName,
                             java.lang.String DTD_URI,
                             int myID)

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

Parameters:

client - JDBCClient connection to the database

ChildItemName - String name of the child that contains the attribute

ChildAttributeName - String name of the attribute to be moved

ParentItemName - String name of the parent to move attribute into

ParentAttributeName - String name for the attribute once moved to the parent

DTD_URI - String URI for the DTD that defines these items and attributes

myID - int internal if of this pushUpAttributeObject object

Method Detail

execute

public void execute()

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

Specified by:

execute in interface Operator