com.saxonica.schema
Class IdentityConstraintReference

java.lang.Object
  com.saxonica.schema.SchemaStructure
      com.saxonica.schema.IdentityConstraintReference

All Implemented Interfaces:

ComponentReference, Serializable, SourceLocator

public class IdentityConstraintReference
extends SchemaStructure
implements ComponentReference

A reference to an identity constraint

See Also:

Serialized Form

Constructor Summary

IdentityConstraintReference()
Create a new uninitialized IdentityConstraint reference (used during schema model loading)

IdentityConstraintReference(int fingerprint, int kind, EnterpriseConfiguration config, SourceLocator locator)
Creates a new IdentityConstraint reference

Method Summary

int	getExpectedKindOfConstraint() Get the expected kind of constraint
int	getFingerprint() Get the fingerprint of the target of this reference
int	getSymbolSpace() Get the symbol space of the target of this reference
IdentityConstraint	getTarget() Returns the identity constraint that this type reference is a reference to
boolean	isResolved() Determine whether this reference has been resolved
void	setTarget(IdentityConstraint target) Set the target of this reference.
void	tryToResolve(SchemaCompiler compiler) Attempt to resolve this reference using the constraints defined in a given schema.

Methods inherited from class com.saxonica.schema.SchemaStructure

elaborate, fixup, getColumnNumber, getConfiguration, getFixupStatus, getLineNumber, getPublicId, getRedefinitionLevel, getSchemaDocumentURI, getSystemId, getValidationStatus, lookForCycles, setConfiguration, setFixupStatus, 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.schema.ComponentReference

getConfiguration

Methods inherited from interface javax.xml.transform.SourceLocator

getColumnNumber, getLineNumber, getPublicId, getSystemId

Constructor Detail

IdentityConstraintReference

public IdentityConstraintReference()

Create a new uninitialized IdentityConstraint reference (used during schema model loading)

IdentityConstraintReference

public IdentityConstraintReference(int fingerprint,
                                   int kind,
                                   EnterpriseConfiguration config,
                                   SourceLocator locator)

Creates a new IdentityConstraint reference

Parameters:

fingerprint - the name pool fingerprint of the name of the constraint being referenced

kind - the name pool fingerprint of the kind of constraint being referenced, e.g. xs:unique

config - identifies the XML Schema in which this type reference appears. May be null if the reference is in a built-in type

locator - the SourceLocator identifying the location of the reference. May be null if the reference is in a built-in type

Method Detail

getExpectedKindOfConstraint

public int getExpectedKindOfConstraint()

Get the expected kind of constraint

Returns:

one of StandardNames.XS_UNIQUE, StandardNames.XS_KEY, StandardNames.XS_KEYREF

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

setTarget

public void setTarget(IdentityConstraint target)

Set the target of this reference. Caller is responsible for ensuring that the target constraint is of the expected kind

Parameters:

target - the target constraint (to which this is a reference)

getFingerprint

public int getFingerprint()

Description copied from interface: ComponentReference

Get the fingerprint of the target of this reference

Specified by:

getFingerprint in interface ComponentReference

Returns:

the integer fingerprint of the component name

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

getTarget

public IdentityConstraint getTarget()
                             throws UnresolvedReferenceException

Returns the identity constraint that this type reference is a reference to

Specified by:

getTarget in interface ComponentReference

Returns:

the schema component if the reference has been resolved.

Throws:

UnresolvedReferenceException - if the reference has not been resolved. Note that this is an unchecked exception.

tryToResolve

public void tryToResolve(SchemaCompiler compiler)

Attempt to resolve this reference using the constraints 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.