net.sf.saxon.expr
Interface ComparisonExpression

All Known Implementing Classes:

CompareToIntegerConstant, GeneralComparison, GeneralComparisonSA, SingletonComparison, ValueComparison

public interface ComparisonExpression

Interface implemented by expressions that perform a comparison

Method Summary

boolean	convertsUntypedToOther() Determine whether untyped atomic values should be converted to the type of the other operand
AtomicComparer	getAtomicComparer() Get the AtomicComparer used to compare atomic values.
Expression[]	getOperands() Get the two operands of the comparison
int	getSingletonOperator() Get the primitive (singleton) operator used: one of Token.FEQ, Token.FNE, Token.FLT, Token.FGT, Token.FLE, Token.FGE

Method Detail

getAtomicComparer

AtomicComparer getAtomicComparer()

Get the AtomicComparer used to compare atomic values. This encapsulates any collation that is used

getSingletonOperator

int getSingletonOperator()

Get the primitive (singleton) operator used: one of Token.FEQ, Token.FNE, Token.FLT, Token.FGT, Token.FLE, Token.FGE

getOperands

Expression[] getOperands()

Get the two operands of the comparison

convertsUntypedToOther

boolean convertsUntypedToOther()

Determine whether untyped atomic values should be converted to the type of the other operand

Returns:

true if untyped values should be converted to the type of the other operand, false if they should be converted to strings.