Package net.sf.saxon.type.coercion

Class SingletonEnumerationCoercionPlan

java.lang.Object

net.sf.saxon.type.coercion.CoercionPlan

net.sf.saxon.type.coercion.AtomicCoercionPlan

net.sf.saxon.type.coercion.SingletonEnumerationCoercionPlan

public class SingletonEnumerationCoercionPlan
extends AtomicCoercionPlan

Coercion plan for use with 4.0 when the required item type is a singleton enumeration type

Field Summary

Fields

Modifier and Type	Field	Description
static final SingletonEnumerationCoercionPlan	INSTANCE

Constructor Summary

Constructors

Constructor	Description
SingletonEnumerationCoercionPlan()

Method Summary

Modifier and Type	Method	Description
protected AtomicValue	convertUntyped(AtomicValue atom, ItemType requiredType, CoercionRequest request)	Coerce an untyped atomic value to the required atomic type.
protected AtomicValue	promote(AtomicValue atom, ItemType requiredType, CoercionRequest request)	Promote an atomic value to the required atomic type.

Methods inherited from class net.sf.saxon.type.coercion.AtomicCoercionPlan

coerceAtomicValue, coerceItem, getInstance

Methods inherited from class net.sf.saxon.type.coercion.CoercionPlan

check, coerceSequence, coercionError

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final SingletonEnumerationCoercionPlan INSTANCE

Constructor Details

SingletonEnumerationCoercionPlan

public SingletonEnumerationCoercionPlan()

Method Details

convertUntyped

protected AtomicValue convertUntyped(AtomicValue atom,
 ItemType requiredType,
 CoercionRequest request)
                              throws XPathException

Description copied from class: AtomicCoercionPlan

Coerce an untyped atomic value to the required atomic type.

Overrides:

convertUntyped in class AtomicCoercionPlan

Parameters:

atom - the untyped atomic value to be converted

requiredType - the required atomic type

request - details of the coercion request for diagnostics

Returns:

the converted atomic value

Throws:

XPathException - if conversion fails

promote

protected AtomicValue promote(AtomicValue atom,
 ItemType requiredType,
 CoercionRequest request)
                       throws XPathException

Description copied from class: AtomicCoercionPlan

Promote an atomic value to the required atomic type. This handles, for example, decimal to string conversion or base64Binary to hexBinary. It also handles down-casting to derived atomic types. The default implementation returns the supplied value unchanged.

Overrides:

promote in class AtomicCoercionPlan

Parameters:

atom - the untyped atomic value to be converted

requiredType - the required atomic type

request - details of the coercion request for diagnostics

Returns:

the converted atomic value

Throws:

XPathException - if conversion fails