net.sf.saxon.expr.parser

Class Evaluators

java.lang.Object

net.sf.saxon.expr.parser.Evaluators

public class Evaluators
extends java.lang.Object

Constants for different mechanisms of expression evaluation

Field Summary

Fields

Modifier and Type	Field and Description
static int	CALL_EVALUATE_OPTIONAL_ITEM
static int	CALL_EVALUATE_SINGLE_ITEM
static int	EVALUATE_AND_MATERIALIZE_VARIABLE
static int	EVALUATE_LITERAL
static int	EVALUATE_SUPPLIED_PARAMETER
static int	EVALUATE_VARIABLE
static int	ITERATE_AND_MATERIALIZE
static int	LAZY_TAIL_EXPRESSION
static int	MAKE_CLOSURE
static int	MAKE_INDEXED_VARIABLE
static int	MAKE_MEMO_CLOSURE
static int	MAKE_SINGLETON_CLOSURE
static int	PROCESS
static int	RETURN_EMPTY_SEQUENCE
static int	SHARED_APPEND_EXPRESSION
static int	STREAMING_ARGUMENT
static int	UNDECIDED

Constructor Summary

Constructors

Constructor and Description
Evaluators()

Method Summary

Modifier and Type	Method and Description
static Evaluator	getEvaluator(int code) Get an evaluator for a given evaluation mechanism

Methods inherited from class java.lang.Object

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

Field Detail

UNDECIDED

public static final int UNDECIDED

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Constant Field Values

EVALUATE_LITERAL

public static final int EVALUATE_LITERAL

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Constant Field Values

EVALUATE_VARIABLE

public static final int EVALUATE_VARIABLE

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Constant Field Values

MAKE_CLOSURE

public static final int MAKE_CLOSURE

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Constant Field Values

MAKE_MEMO_CLOSURE

public static final int MAKE_MEMO_CLOSURE

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Constant Field Values

RETURN_EMPTY_SEQUENCE

public static final int RETURN_EMPTY_SEQUENCE

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Constant Field Values

EVALUATE_AND_MATERIALIZE_VARIABLE

public static final int EVALUATE_AND_MATERIALIZE_VARIABLE

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Constant Field Values

CALL_EVALUATE_OPTIONAL_ITEM

public static final int CALL_EVALUATE_OPTIONAL_ITEM

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Constant Field Values

ITERATE_AND_MATERIALIZE

public static final int ITERATE_AND_MATERIALIZE

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Constant Field Values

PROCESS

public static final int PROCESS

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Constant Field Values

LAZY_TAIL_EXPRESSION

public static final int LAZY_TAIL_EXPRESSION

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Constant Field Values

SHARED_APPEND_EXPRESSION

public static final int SHARED_APPEND_EXPRESSION

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Constant Field Values

MAKE_INDEXED_VARIABLE

public static final int MAKE_INDEXED_VARIABLE

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Constant Field Values

MAKE_SINGLETON_CLOSURE

public static final int MAKE_SINGLETON_CLOSURE

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Constant Field Values

EVALUATE_SUPPLIED_PARAMETER

public static final int EVALUATE_SUPPLIED_PARAMETER

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Constant Field Values

STREAMING_ARGUMENT

public static final int STREAMING_ARGUMENT

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Constant Field Values

CALL_EVALUATE_SINGLE_ITEM

public static final int CALL_EVALUATE_SINGLE_ITEM

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Constant Field Values

Constructor Detail

Evaluators

public Evaluators()

Method Detail

getEvaluator

public static Evaluator getEvaluator(int code)

Get an evaluator for a given evaluation mechanism

Parameters:

code - one of the constants identifying an evaluation mechanism

Returns:

the corresponding Evaluator