edu.wpi.cs.DSRG.xmldb.DTDWrapper
Class Group

java.lang.Object
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  +--edu.wpi.cs.DSRG.xmldb.DTDWrapper.Item
        |
        +--edu.wpi.cs.DSRG.xmldb.DTDWrapper.Group

public class Group

extends Item

Representing the Group in the Element Type Declaration. Every group will have a unique name by when created. The name is unique, but the number in the name may not be continuous. Because, the group is created on the fly, then, every time we want to new a GROUP to get some of its information, the number will be increased, but we may not store that GROUP in the DTDM_item table. There could be more than one GROUP object for one group in the DOM tree.

Field Summary

(package private) edu.wpi.cs.DSRG.xmldb.DTDWrapper.Element	group_root Root of the group.
(package private) java.lang.String	name The name of the group.

Constructor Summary

Group(edu.wpi.cs.DSRG.xmldb.DTDWrapper.Element a_root)
Create a group object.

Method Summary

java.lang.String	getName() Get the group's name.
int	getNumberOfReferences() Get number of references underneath this group.
Item	getParent() Get the parent of this group.
Reference	getReferenceAt(int Index) get the Reference at specific Index.
java.lang.String	getType() Get the type of the Group.

Methods inherited from class java.lang.Object

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

Field Detail

name

java.lang.String name

The name of the group. Which is generated by the constructor.

group_root

edu.wpi.cs.DSRG.xmldb.DTDWrapper.Element group_root

Root of the group. if will be the "./" in the methods.

Constructor Detail

Group

public Group(edu.wpi.cs.DSRG.xmldb.DTDWrapper.Element a_root)

Create a group object. It will give it a unique group name, and also keep the DOM tree node that is the root of this group_root.

Method Detail

getType

public java.lang.String getType()

Get the type of the Group. It could be either "sequence", or "choice". If there is only one element, then that is the type of the "choice". The real implementation will be depends on the XML Schema DOM tree. XQL: ./@order process: if (./@order == "choice") return "CHOICE" else return "SEQUENCE"

getNumberOfReferences

public int getNumberOfReferences()

Get number of references underneath this group. XQL: count(./*)

Overrides:

getNumberOfReferences in class Item

getReferenceAt

public Reference getReferenceAt(int Index)

get the Reference at specific Index. XQL: ./*[Index() == Index]

Overrides:

getReferenceAt in class Item

getParent

public Item getParent()

Get the parent of this group. It could be either an ElementTypeDeclaration, or a Group. I am not sure if I am going to use this interface.

getName

public java.lang.String getName()

Get the group's name.

Overrides:

getName in class Item