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

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

All Implemented Interfaces:

Operator

public class renameAttributeObject

extends java.lang.Object

implements Operator

renameAttributeObject.java represents the attribute that is to be renamed constructor: public renameAttributeObject(JDBCClient client, String ParentItemName, String OldAttributeName, String NewAttributeName, String DTD_URI, int myID) member variables: client - used to connect to oracle ParentItemName - the parent name of the item OldAttributeName - the current name of the attribute NewAttributeName - the new name of the 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) 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	NewAttributeName
(package private) java.lang.String	OldAttributeName
(package private) java.lang.String	oldView
(package private) java.lang.String	ParentItemName
(package private) java.sql.ResultSet	rs

Constructor Summary

renameAttributeObject(JDBCClient client, java.lang.String ParentItemName, java.lang.String OldAttributeName, java.lang.String NewAttributeName, 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 for 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

ParentItemName

java.lang.String ParentItemName

OldAttributeName

java.lang.String OldAttributeName

NewAttributeName

java.lang.String NewAttributeName

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

renameAttributeObject

public renameAttributeObject(JDBCClient client,
                             java.lang.String ParentItemName,
                             java.lang.String OldAttributeName,
                             java.lang.String NewAttributeName,
                             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 database

ParentItemName - String name of the item that owns the attribute to be renamed

OldAttributeName - String existing name for the attribute

NewAttributeName - String new name for the attribute

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

myID - int The internal id for this renameAttributeObject 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 for the data tables.

Specified by:

execute in interface Operator