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

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

public class Reference

extends java.lang.Object

getRatio() and getOptional() together could used to describe the different occurrence property indicator ratio optional maxOccurs minOccurs no indicator: 1:1 false ^ ^ ? 1:1 true ^ 0 + 1:n false * ^ * 1:n true * 0 This is not a design fault that I seperate the reference the element that is reference to. We keep as it is, and we leave the design changing in the future.... Well, it is changed a little bit: indicator ratio(multiple) optional maxOccurs minOccurs no indicator: false false ^ ^ ? false true ^ 0 + true false * ^ * true true * 0 Now, the value of ratio is the boolean value of multiple. We keep the naming confusion here. Becaust, it's too hard to change the coding interface.

Field Summary

(package private) edu.wpi.cs.DSRG.xmldb.DTDWrapper.Element

reference_node The node used to get the reference information from the XML Schema DOM Tree.

Constructor Summary

Reference(edu.wpi.cs.DSRG.xmldb.DTDWrapper.Element reference_root)
Create a reference object which can used to browse the DOM tree to get what we need.

Method Summary

boolean	getOptional() Get whether this reference is optional.
java.lang.String	getRatio() Get where this Ratio of this reference.
Item	getTo() Get where this reference refer to.

Methods inherited from class java.lang.Object

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

Field Detail

reference_node

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

The node used to get the reference information from the XML Schema DOM Tree. XQL: it could be child of Group or ElementTypeDeclaration. We use whatever it is as the "./" in the following methods.

Constructor Detail

Reference

public Reference(edu.wpi.cs.DSRG.xmldb.DTDWrapper.Element reference_root)

Create a reference object which can used to browse the DOM tree to get what we need. Keep that root node.

Method Detail

getTo

public Item getTo()

Get where this reference refer to. It could be either an ElementTypeReference, or a group. XQL: ./ process: if (./@TagName == "group") return Group object. else if (./@TagName == "element") return Element object.

getRatio

public java.lang.String getRatio()

Get where this Ratio of this reference. It could be either "1:1", or "1:n". XQL: ./@maxOccurs process: if (./@maxOccurs == "*") return "1:n" else return "1:1"

getOptional

public boolean getOptional()

Get whether this reference is optional. ./@minOccurs process: if (./@minOccurs == "0") return true else return false