Class GeneralComparison20

java.lang.Object

net.sf.saxon.expr.Expression

net.sf.saxon.expr.BinaryExpression

net.sf.saxon.expr.GeneralComparison

net.sf.saxon.expr.GeneralComparison20

All Implemented Interfaces:

Serializable, SourceLocator, LocationProvider, SaxonLocator, CallableExpression, ComparisonExpression, InstructionInfo, Locator

public class GeneralComparison20
extends GeneralComparison

The class GeneralComparison20 specializes GeneralComparison for the case where the comparison is done with 2.0 semantics (i.e. with backwards compatibility off). It differs from the superclass in that it will never turn the expression into a GeneralComparison10, which could lead to non-terminating optimizations

See Also:

• Serialized Form

Field Summary

Fields inherited from class GeneralComparison

comparer, comparisonCardinality, MANY_TO_MANY, MANY_TO_ONE, needsRuntimeCheck, ONE_TO_ONE, singletonOperator

Fields inherited from class BinaryExpression

operand0, operand1, operator

Fields inherited from class Expression

EFFECTIVE_BOOLEAN_VALUE, EVALUATE_METHOD, EVENT_FEED_METHOD, ITEM_FEED_METHOD, ITERATE_METHOD, locationId, MAX_SEQUENCE_LENGTH, MAX_STRING_LENGTH, PROCESS_METHOD, PUSH_SELECTION, staticProperties, UNBOUNDED_LOWER, UNBOUNDED_UPPER, WATCH_METHOD

Constructor Summary

Constructors

Constructor	Description
GeneralComparison20(Expression p0, int op, Expression p1)	Create a relational expression identifying the two operands and the operator

Method Summary

Modifier and Type	Method	Description
Expression	copy()	Copy an expression.
protected GeneralComparison	getInverseComparison()

Methods inherited from class GeneralComparison

call, compare, computeCardinality, convertsUntypedToOther, effectiveBooleanValue, evaluateItem, evaluateManyToMany, explainExtraAttributes, getAtomicComparer, getComparisonCardinality, getCorrespondingSingletonOperator, getExpressionName, getItemType, getSingletonOperator, needsRuntimeCheck, optimize, setAtomicComparer, setComparisonCardinality, setNeedsRuntimeCheck, simplify, typeCheck

Methods inherited from class BinaryExpression

computeSpecialProperties, displayOperator, equals, explain, getArguments, getOperands, getOperator, hashCode, isAssociative, isCommutative, isInverse, iterateSubExpressions, promote, replaceSubExpression, setFlattened, toString

Methods inherited from class Expression

addToPathMap, adoptChildExpression, checkForUpdatingSubexpressions, checkPermittedContents, computeDependencies, computeStaticProperties, doPromotion, dynamicError, evaluateAsString, evaluatePendingUpdates, explain, getCardinality, getColumnNumber, getColumnNumber, getConstructType, getContainer, getDependencies, getEvaluationMethod, getExecutable, getHostLanguage, getImplementationMethod, getIntegerBounds, getIntrinsicDependencies, getLineNumber, getLineNumber, getLocationId, getLocationProvider, getObjectName, getProperties, getProperty, getPublicId, getSlotsUsed, getSpecialProperties, getSystemId, getSystemId, hasLoopingSubexpression, hasVariableBinding, implementsStaticTypeCheck, isSubtreeExpression, isUpdatingExpression, isVacuousExpression, iterate, iterateEvents, iterateSameFocusSubExpressions, markTailFunctionCalls, process, resetLocalStaticProperties, setContainer, setEvaluationMethod, setFiltered, setLocationId, staticTypeCheck, suppressValidation, typeError

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface CallableExpression

getArguments

Methods inherited from interface ComparisonExpression

getOperands

Constructor Details

GeneralComparison20

public GeneralComparison20(Expression p0,
 int op,
 Expression p1)

Create a relational expression identifying the two operands and the operator

Parameters:

p0 - the left-hand operand

op - the operator, as a token returned by the Tokenizer (e.g. Token.LT)

p1 - the right-hand operand

Method Details

copy

public Expression copy()

Copy an expression. This makes a deep copy.

Overrides:

copy in class GeneralComparison

Returns:

the copy of the original expression

getInverseComparison

protected GeneralComparison getInverseComparison()

Overrides:

getInverseComparison in class GeneralComparison