com.icl.saxon.expr

Class IsLastExpression

public final class IsLastExpression extends Expression

position()=last() expression

Constructor Summary
	IsLastExpression(boolean condition) Construct a condition that tests position()=last (if condition is true) or position()!

Method Summary
void	display(int level) Diagnostic print of expression structure
Value	evaluate(Context c)
boolean	evaluateAsBoolean(Context c)
boolean	getCondition()
int	getDataType() Determine the data type of the expression
int	getDependencies() Get the dependencies of this expression on the context
Expression	reduce(int dependencies, Context context) Perform a partial evaluation of the expression, by eliminating specified dependencies on the context.
Expression	simplify()

Constructor Detail

IsLastExpression

public IsLastExpression(boolean condition)

Construct a condition that tests position()=last (if condition is true) or position()!=last() (if condition is false).

Method Detail

display

public void display(int level)

Diagnostic print of expression structure

evaluate

public Value evaluate(Context c)

evaluateAsBoolean

public boolean evaluateAsBoolean(Context c)

getCondition

public boolean getCondition()

getDataType

public int getDataType()

Determine the data type of the expression

Returns: Value.BOOLEAN

getDependencies

public int getDependencies()

Get the dependencies of this expression on the context

reduce

public Expression reduce(int dependencies, Context context)

Perform a partial evaluation of the expression, by eliminating specified dependencies on the context.

Parameters: dependencies The dependencies to be removed context The context to be used for the partial evaluation

Returns: a new expression that does not have any of the specified dependencies

simplify

public Expression simplify()