net.sf.saxon.expr

Class EagerLetExpression

java.lang.Object

net.sf.saxon.expr.ComputedExpression

net.sf.saxon.expr.Assignation

net.sf.saxon.expr.LetExpression

net.sf.saxon.expr.EagerLetExpression

All Implemented Interfaces:

Serializable, SourceLocator, Binding, Container, Expression, TailCallReturner, InstructionInfoProvider

public class EagerLetExpression
extends LetExpression

An EagerLetExpression is the same as a LetExpression except that the variable is evaluated using eager evaluation rather than lazy evaluation. This is used when performing diagnostic tracing.

See Also:

Serialized Form

Field Summary

Fields inherited from class net.sf.saxon.expr.LetExpression

refCount

Fields inherited from class net.sf.saxon.expr.Assignation

action, declaration, nameCode, sequence, slotNumber, variableName

Fields inherited from class net.sf.saxon.expr.ComputedExpression

locationId, staticProperties

Fields inherited from interface net.sf.saxon.expr.Expression

EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD

Constructor Summary

Constructors

Constructor and Description
EagerLetExpression()

Method Summary

Modifier and Type	Method and Description
protected ValueRepresentation	eval(XPathContext context) Evaluate the variable.

Methods inherited from class net.sf.saxon.expr.LetExpression

checkPermittedContents, computeCardinality, computeSpecialProperties, display, evaluateItem, getItemType, iterate, markTailFunctionCalls, optimize, process, processLeavingTail, promote, typeCheck

Methods inherited from class net.sf.saxon.expr.Assignation

evaluateVariable, extendBindingList, getAction, getLocalSlotNumber, getRequiredSlots, getVariableDeclaration, getVariableFingerprint, getVariableName, getVariableNameCode, isAssignable, isGlobal, iterateSubExpressions, promoteWhereClause, setAction, setSequence, setSlotNumber, setVariableDeclaration, simplify, suppressValidation

Methods inherited from class net.sf.saxon.expr.ComputedExpression

adoptChildExpression, computeDependencies, computeStaticProperties, doPromotion, dynamicError, dynamicError, effectiveBooleanValue, evaluateAsString, getCardinality, getColumnNumber, getConstructType, getDependencies, getExecutable, getHostLanguage, getImplementationMethod, getInstructionInfo, getIntrinsicDependencies, getLineNumber, getLocationId, getLocationProvider, getParentExpression, getPublicId, getSlotsUsed, getSpecialProperties, getSystemId, hasBadParentPointer, resetStaticProperties, setLocationId, setParentExpression, typeError, typeError

Methods inherited from class java.lang.Object

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

Constructor Detail

EagerLetExpression

public EagerLetExpression()

Method Detail

eval

protected ValueRepresentation eval(XPathContext context)
                            throws XPathException

Evaluate the variable.

Overrides:

eval in class LetExpression

Throws:

XPathException