Package com.saxonica.ee.schema

Class IdentityField

java.lang.Object

com.saxonica.ee.schema.SchemaStructure

com.saxonica.ee.schema.FieldOrSelector

com.saxonica.ee.schema.IdentityField

All Implemented Interfaces:

UserSchemaComponent, SourceLocator, Location, SchemaComponent, Locator

public class IdentityField
extends FieldOrSelector

The field selector for an IdentityConstraint

Field Summary

Fields inherited from class com.saxonica.ee.schema.FieldOrSelector

selectExpression

Constructor Summary

Constructors

Constructor	Description
IdentityField(String xpath)	Creates a new IdentityField.

Method Summary

Modifier and Type	Method	Description
BuiltInAtomicType	getBuiltInBaseType()
int	getCardinality(ExpressionVisitor visitor, ContextItemStaticInfo contextItemType)	Get the static cardinality of the expression, that is the number of nodes the field xpath will select for each node selected by the selector xpath.
boolean	isAscending()
boolean	isListValued()
void	setAscending(boolean upwards)
void	setBuiltInBaseType(BuiltInAtomicType builtInBaseType, boolean listValued)

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

getNamespaceContext, getSelectExpression, getSelection, getXPath, getXPathDefaultNamespace, setNamespaceContext, setSelectExpression, setSelection, setXPath, setXPathDefaultNamespace

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

elaborate, fixup, getColumnNumber, getComponentAsFunction, getConfiguration, getFixupStatus, getGeneratedId, getLineNumber, getPublicId, getRedefinitionLevel, getSchemaDocumentURI, getSystemId, getValidationStatus, hasSameLocation, isValidationNeeded, lookForCycles, makeXPathExpressionPropertyRecord, saveLocation, setConfiguration, setFixupStatus, setGeneratedId, setLineNumber, setLocator, setRedefinitionLevel, setSchemaDocumentURI, setSystemId, setValidationStatus, validate

Methods inherited from class java.lang.Object

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

Constructor Details

IdentityField

public IdentityField(String xpath)

Creates a new IdentityField.

Parameters:

xpath - the xpath for the IdentityField. Must not be null.

Method Details

getBuiltInBaseType

public BuiltInAtomicType getBuiltInBaseType()

isListValued

public boolean isListValued()

setBuiltInBaseType

public void setBuiltInBaseType(BuiltInAtomicType builtInBaseType,
 boolean listValued)

setAscending

public void setAscending(boolean upwards)

isAscending

public boolean isAscending()

getCardinality

public int getCardinality(ExpressionVisitor visitor,
 ContextItemStaticInfo contextItemType)
                   throws XPathException

Get the static cardinality of the expression, that is the number of nodes the field xpath will select for each node selected by the selector xpath.

Parameters:

visitor - the expression visitor

contextItemType - the type of the context item, and information about whether a context item will always be provided or not

Returns:

the static cardinality

Throws:

XPathException - if an error is found during the evaluation