com.saxonica.ee.schema

Class AttributeGroupReference

java.lang.Object

com.saxonica.ee.schema.SchemaStructure

com.saxonica.ee.schema.AttributeGroupReference

All Implemented Interfaces:

ComponentReference, javax.xml.transform.SourceLocator, Location, org.xml.sax.Locator

public final class AttributeGroupReference
extends SchemaStructure
implements ComponentReference

An XML Schema Attribute Group Reference, corresponding to an xs:attributeGroup element with a 'ref' attribute.

Constructor Summary

Constructors

Constructor and Description
AttributeGroupReference(EnterpriseConfiguration config, StructuredQName target) Creates a new AttributeGroup reference

Method Summary

Modifier and Type	Method and Description
void	elaborate(SchemaCompiler compiler) Elaborate the schema component: after reloading a serialized schema component model, this expands the component with derived information needed during validation episodes.
boolean	fixup(SchemaCompiler compiler) Fix up references to other elements in the schema.
AttributeWildcard	getAttributeWildcard(SchemaCompiler compiler) Returns the attribute wildcard in the referenced attribute group, if any.
protected AttributeWildcard	getAttributeWildcard(SchemaCompiler compiler, java.util.Stack<AttributeGroupDecl> stack)
int	getSymbolSpace() Get the symbol space of the target of this reference
SchemaComponent	getTarget() Resolves the attribute group reference Note this method doesn't bind irrevocably to the target attribute group declaration, because this may change following a redefine.
StructuredQName	getTargetComponentName() Get the name of the target of this reference
boolean	isDangling() Ask whether this is known to be a dangling reference
boolean	isResolved() Determine whether this reference has been resolved
void	lookForCycles(java.util.Stack references, SchemaCompiler compiler) Check for cycles in the attribute group.
void	setTargetComponentName(StructuredQName target) Set the fingerprint of the target of this reference
void	tryToResolve(SchemaCompiler compiler) Attempt to resolve this reference using the groups defined in a given schema.
boolean	validate(SchemaCompiler compiler) Checks the validity of this Schema component.

Methods inherited from class com.saxonica.ee.schema.SchemaStructure

getColumnNumber, getConfiguration, getFixupStatus, getGeneratedId, getLineNumber, getPublicId, getRedefinitionLevel, getSchemaDocumentURI, getSystemId, getValidationStatus, hasSameLocation, makeXPathExpressionPropertyRecord, saveLocation, setConfiguration, setFixupStatus, setGeneratedId, setLineNumber, setLocator, setRedefinitionLevel, setSchemaDocumentURI, setSystemId, setValidationStatus

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.saxonica.ee.schema.ComponentReference

getConfiguration

Methods inherited from interface net.sf.saxon.expr.parser.Location

getColumnNumber, getLineNumber, getPublicId, getSystemId, saveLocation

Constructor Detail

AttributeGroupReference

public AttributeGroupReference(EnterpriseConfiguration config,
                               StructuredQName target)

Creates a new AttributeGroup reference

Parameters:

config - the Configuration that this AttributeGroup belongs to.

target - The name of the referenced attribute group (that is, the name contained in the 'ref' attribute)

Method Detail

isResolved

public boolean isResolved()

Determine whether this reference has been resolved

Specified by:

isResolved in interface ComponentReference

Returns:

true if the reference has been resolved to a schema component

isDangling

public boolean isDangling()

Ask whether this is known to be a dangling reference

Specified by:

isDangling in interface ComponentReference

Returns:

true if the target of this component reference is known to be absent, and if a warning has been issued to this effect

getSymbolSpace

public int getSymbolSpace()

Get the symbol space of the target of this reference

Specified by:

getSymbolSpace in interface ComponentReference

Returns:

an integer code identifying the symbol space

setTargetComponentName

public void setTargetComponentName(StructuredQName target)

Set the fingerprint of the target of this reference

Parameters:

target - the the name of the referenced attribute group

getTargetComponentName

public StructuredQName getTargetComponentName()

Get the name of the target of this reference

Specified by:

getTargetComponentName in interface ComponentReference

Returns:

the component name

getAttributeWildcard

public AttributeWildcard getAttributeWildcard(SchemaCompiler compiler)
                                       throws MissingComponentException

Returns the attribute wildcard in the referenced attribute group, if any.

Parameters:

compiler - May be null if used at validation time.

Returns:

the the attribute wildcard (xs:anyAttribute element) in the referenced attribute group, if there is one; otherwise null.

Throws:

MissingComponentException - if the reference to the attribute group declaration cannot be resolved

getAttributeWildcard

protected AttributeWildcard getAttributeWildcard(SchemaCompiler compiler,
                                                 java.util.Stack<AttributeGroupDecl> stack)
                                          throws MissingComponentException

Throws:

MissingComponentException

fixup

public boolean fixup(SchemaCompiler compiler)
              throws SchemaException

Fix up references to other elements in the schema.

Overrides:

fixup in class SchemaStructure

Parameters:

compiler - the schema compiler

Returns:

true if fixup succeeds, false if it fails.

Throws:

SchemaException - if a fatal error occurs

validate

public boolean validate(SchemaCompiler compiler)
                 throws SchemaException

Checks the validity of this Schema component. For internal use only.

Parameters:

compiler - the schema compiler

Returns:

true when this Schema definition is valid, otherwise false.

Throws:

SchemaException

lookForCycles

public void lookForCycles(java.util.Stack references,
                          SchemaCompiler compiler)
                   throws SchemaException

Check for cycles in the attribute group. For internal use only.

Overrides:

lookForCycles in class SchemaStructure

Parameters:

references - A list of attribute groups that reference this one, directly or indirectly.

compiler - the schema compiler

Throws:

SchemaException - if a circularity is detected.

tryToResolve

public void tryToResolve(SchemaCompiler compiler)

Attempt to resolve this reference using the groups defined in a given schema. No error results if the reference cannot be resolved.

Specified by:

tryToResolve in interface ComponentReference

Parameters:

compiler - The compiler being used to compile the referring component. This is assumed to know about the schema containing the candidate target components for the reference. If null, the schema containing the reference is used.

getTarget

public SchemaComponent getTarget()
                          throws MissingComponentException

Resolves the attribute group reference Note this method doesn't bind irrevocably to the target attribute group declaration, because this may change following a redefine.

Specified by:

getTarget in interface ComponentReference

Returns:

the schema component if the reference has been resolved.

Throws:

MissingComponentException - if the reference has not been resolved.

elaborate

public void elaborate(SchemaCompiler compiler)
               throws SchemaException

Elaborate the schema component: after reloading a serialized schema component model, this expands the component with derived information needed during validation episodes. The model is assumed to be valid.

Overrides:

elaborate in class SchemaStructure

Parameters:

compiler - the schema compiler

Throws:

SchemaException