Package com.sun.msv.grammar

abstract grammar model(AGM): common part.

See:
Description

Interface Summary

ExpressionVisitor	Visitor interface for Expression and its derived types.
ExpressionVisitorBoolean	ExpressionVisitor that returns boolean.
ExpressionVisitorExpression	ExpressionVisitor that returns Expression object.
ExpressionVisitorVoid	ExpressionVisitor that returns void.
Grammar	base interface of the "grammar".
IDContextProvider	ValidationContextProvider that supports limited ID/IDREF implementation.
NameClassAndExpression	common interface of AttributeExp and ElementExp.
NameClassVisitor	Visitor interface for NameClass.

Class Summary

AnyNameClass	a NameClass that matches any name.
AttributeExp	Attribute declaration.
BinaryExp	Base implementation for those expression which has two child expressions.
ChoiceExp	A|B.
ChoiceNameClass	Union of two NameClasses.
ConcurExp	<concur> pattern of TREX.
DifferenceNameClass	<difference> name class.
ElementExp	Element declaration.
Expression	Primitive of the tree regular expression.
ExpressionCloner	clones an expression.
ExpressionPool	Creates a new Expression by combining existing expressions.
ExpressionPool.ClosedHash	expression cache by closed hash.
IDREFType	very limited 'IDREF' type of XML Schema Part 2.
IDType	very limited 'ID' type of XML Schema Part 2.
InterleaveExp	<interleave> pattern of TREX, or <all> particle of XML Schema.
KeyExp	<key>/<keyref> of RELAX NG.
ListExp	<list> of RELAX NG.
MixedExp	<mixed> of RELAX.
NameClass	validator of (namespaceURI,localPart) pair.
NamespaceNameClass	NameClass that matchs any names in a particular namespace.
NotNameClass	NameClass that acts a not operator.
OneOrMoreExp	A+.
OtherExp	Base class for application-specific AGM annotation.
ReferenceContainer	Container of ReferenceExp.
ReferenceExp	Reference to the other expression.
SequenceExp	A,B.
SimpleNameClass	a NameClass that accepts only one fixed name.
TypedStringExp	Expression that matchs characters of the particular DataType.
UnaryExp	Base implementation for those expression who has one child expresison.

Package com.sun.msv.grammar Description

abstract grammar model(AGM): common part.

ID/IDREF support

Support for 'ID' and 'IDREF' types are implemented in this package, due to the restriction of the implementation.

The implementation in this package works as follows:

• When verify method of IDType is called, it only checks the conformance as a NMTOKEN and uniqueness, then stores it as ID.
• When verify method of IDREFType is called, it only checks the conformance as a NMTOKEN and stores it as IDREF.
• When the entire document is parsed, ID list and IDREF list are cross-checked. IDREF without the corresponding ID is detected in this stage.

This implementation implies very severe limitations. For example, consider the following TREX pattern.

<element name="foo">
  <choice>
    <attribute name="bar" type="ID" />
    <attribute name="bar" type="string" />
  </choice>
  <element name="child">
    <attribute name="id" type="ID" />
  </element>
</element>

And the following XML fragment.

<foo bar="xyz"> <child id="xyz" /> </foo>

This implementation cannot validate the above fragment, because "xyz" is registered as an ID when "bar" attribute is tested against "ID" type. IDREF type also has similar problems.

Note that RELAX prohibits these "abuse" of ID/IDREF in the way that this implementation works.