Package com.sun.msv.reader.trex

Class DefineState

java.lang.Object

com.sun.msv.reader.State

com.sun.msv.reader.SimpleState

com.sun.msv.reader.trex.DefineState

All Implemented Interfaces:

ExpressionOwner, org.xml.sax.ContentHandler

Direct Known Subclasses:

DefineState, DefineState

public abstract class DefineState
extends SimpleState
implements ExpressionOwner

parses <define> declaration.

Field Summary

Fields

Modifier and Type	Field	Description
protected Expression	exp	expression object that is being created.
private ReferenceExp	ref	Container to which the expression will be assigned.

Fields inherited from class com.sun.msv.reader.State

baseURI, location, parentState, reader, startTag

Constructor Summary

Constructors

Constructor	Description
DefineState()

Method Summary

Modifier and Type	Method	Description
protected State	createChildState(StartTagInfo tag)	creates appropriate child state object for this element
protected abstract Expression	doCombine(ReferenceExp baseExp, Expression newExp, java.lang.String combine)	combines two expressions into one as specified by the combine parameter, and returns a new expression.
protected void	endSelf()	this method is called in endElement method when the state is about to be removed.
ReferenceExp	getRef()	Obtains a ReferenceExp that represents the target pattern block.
protected ReferenceExp	getReference()
void	onEndChild(Expression child)	receives a Pattern object that is contained in this element.
protected void	startSelf()	performs a task that should be done before reading any child elements.

Methods inherited from class com.sun.msv.reader.SimpleState

endDocument, endElement, isGrammarElement, startElement

Methods inherited from class com.sun.msv.reader.State

_assert, callInterceptExpression, characters, endPrefixMapping, getBaseURI, getLocation, getParentState, getStartTag, ignorableWhitespace, init, processingInstruction, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping

Methods inherited from class java.lang.Object

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

Field Detail

exp

protected Expression exp

expression object that is being created. See #castPattern and #annealPattern methods for how will a pattern be created.

ref

private ReferenceExp ref

Container to which the expression will be assigned.

Constructor Detail

DefineState

public DefineState()

Method Detail

getRef

public final ReferenceExp getRef()

Obtains a ReferenceExp that represents the target pattern block.

Returns:

null If there was an error in the input, this method may return null.

onEndChild

public final void onEndChild(Expression child)

receives a Pattern object that is contained in this element.

Specified by:

onEndChild in interface ExpressionOwner

startSelf

protected void startSelf()

Description copied from class: State

performs a task that should be done before reading any child elements. derived-class can safely read startTag and/or parentState values.

Overrides:

startSelf in class State

endSelf

protected void endSelf()

Description copied from class: SimpleState

this method is called in endElement method when the state is about to be removed. derived-class should perform any wrap-up job

Overrides:

endSelf in class SimpleState

createChildState

protected State createChildState(StartTagInfo tag)

Description copied from class: SimpleState

creates appropriate child state object for this element

Specified by:

createChildState in class SimpleState

getReference

protected ReferenceExp getReference()

Returns:

null in case of error.

doCombine

protected abstract Expression doCombine(ReferenceExp baseExp,
                                        Expression newExp,
                                        java.lang.String combine)

combines two expressions into one as specified by the combine parameter, and returns a new expression. If the combine parameter is invalid, then return null.