Package com.saxonica.ee.trans

Class ContextItemStaticInfoEE

java.lang.Object

net.sf.saxon.expr.parser.ContextItemStaticInfo

com.saxonica.ee.trans.ContextItemStaticInfoEE

public class ContextItemStaticInfoEE
extends ContextItemStaticInfo

Saxon-EE version of ContextItemStaticInfo, with extra information used for streamability analysis

Field Summary

Fields

Modifier and Type	Field	Description
static ContextItemStaticInfoEE	ABSENT
static ContextItemStaticInfoEE	DEFAULT	Default information when nothing else is known

Constructor Summary

Constructors

Constructor	Description
ContextItemStaticInfoEE(ItemType itemType, boolean maybeUndefined)	Create a ContextItemStaticInfo
ContextItemStaticInfoEE(ItemType itemType, boolean maybeUndefined, Posture contextItemPosture)	Create a ContextItemStaticInfo

Method Summary

Modifier and Type	Method	Description
AccumulatorFn.Phase	getAccumulatorPhase()	Ask whether the expression is within the select expression or sequence constructor of an accumulator rule, and whether the rule is for the start or end phase
Actor	getContainer()
Posture	getContextItemPosture()	Get the context item posture
boolean	isStrictStreamabilityRules()
void	setAccumulatorPhase(AccumulatorFn.Phase phase)	Indicate that the expression is within the select expression or sequence constructor of an accumulator rule, and whether the rule is for the start or end phase
void	setContainer(Actor container)
void	setContextPostureGrounded()	Set streaming posture.
void	setContextPostureStriding()	Set streaming posture.
void	setStrictStreamabilityRules(boolean strictStreamabilityRules)

Methods inherited from class net.sf.saxon.expr.parser.ContextItemStaticInfo

getContextItemUType, getContextSettingExpression, getItemType, isParentless, isPossiblyAbsent, setContextSettingExpression, setParentless

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT

public static final ContextItemStaticInfoEE DEFAULT

Default information when nothing else is known

ABSENT

public static final ContextItemStaticInfoEE ABSENT

Constructor Detail

ContextItemStaticInfoEE

public ContextItemStaticInfoEE(ItemType itemType,
                               boolean maybeUndefined)

Create a ContextItemStaticInfo

Parameters:

itemType - the item type of the context item. If the context item is absent, set this to ErrorType.getInstance().

maybeUndefined - set to true if it is possible (or certain) that the context item will be absent.

ContextItemStaticInfoEE

public ContextItemStaticInfoEE(ItemType itemType,
                               boolean maybeUndefined,
                               Posture contextItemPosture)

Create a ContextItemStaticInfo

Parameters:

itemType - the item type of the context item. If the context item is absent, set this to ErrorType.getInstance().

maybeUndefined - set to true if it is possible (or certain) that the context item will be absent.

contextItemPosture - the context item posture.

Method Detail

setContextPostureStriding

public void setContextPostureStriding()

Description copied from class: ContextItemStaticInfo

Set streaming posture. The Saxon-HE version of this method has no effect.

Overrides:

setContextPostureStriding in class ContextItemStaticInfo

setContextPostureGrounded

public void setContextPostureGrounded()

Description copied from class: ContextItemStaticInfo

Set streaming posture. The Saxon-HE version of this method has no effect.

Overrides:

setContextPostureGrounded in class ContextItemStaticInfo

getContainer

public Actor getContainer()

setContainer

public void setContainer(Actor container)

getContextItemPosture

public Posture getContextItemPosture()

Get the context item posture

Returns:

the posture of the expression that sets the context item

isStrictStreamabilityRules

public boolean isStrictStreamabilityRules()

Overrides:

isStrictStreamabilityRules in class ContextItemStaticInfo

setStrictStreamabilityRules

public void setStrictStreamabilityRules(boolean strictStreamabilityRules)

setAccumulatorPhase

public void setAccumulatorPhase(AccumulatorFn.Phase phase)

Indicate that the expression is within the select expression or sequence constructor of an accumulator rule, and whether the rule is for the start or end phase

Parameters:

phase - indicates whether this is the start or end phase, or null to indicate that the expression is not within an accumulator rule

getAccumulatorPhase

public AccumulatorFn.Phase getAccumulatorPhase()

Ask whether the expression is within the select expression or sequence constructor of an accumulator rule, and whether the rule is for the start or end phase

Returns:

whether this is the start or end phase, or null to indicate that the expression is not within an accumulator rule