com.saxonica.stream

Class Streamability

java.lang.Object

com.saxonica.stream.Streamability

public class Streamability
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static int	sidewaysAxes

Constructor Summary

Constructors

Constructor and Description
Streamability()

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	isChildSelection(Expression exp, boolean allowExtensions, List<String> reasons)
static boolean	isIncrementallyConsuming(Expression exp)
static Expression	rewriteForExpressionAsMappingExpression(ForExpression forEx)
static Expression	rewriteQuantifiedExpressionAsFilterExpression(QuantifiedExpression quant)
static boolean	selectsSideways(Expression e) Tests whether an expression performs navigation downwards or sideways

Methods inherited from class java.lang.Object

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

Field Detail

sidewaysAxes

public static final int sidewaysAxes

See Also:

Constant Field Values

Constructor Detail

Streamability

public Streamability()

Method Detail

selectsSideways

public static boolean selectsSideways(Expression e)

Tests whether an expression performs navigation downwards or sideways

Parameters:

e - the expression

Returns:

true if the expression uses a downwards or sideways axis

isIncrementallyConsuming

public static boolean isIncrementallyConsuming(Expression exp)

isChildSelection

public static boolean isChildSelection(Expression exp,
                       boolean allowExtensions,
                       List<String> reasons)

rewriteQuantifiedExpressionAsFilterExpression

public static Expression rewriteQuantifiedExpressionAsFilterExpression(QuantifiedExpression quant)

rewriteForExpressionAsMappingExpression

public static Expression rewriteForExpressionAsMappingExpression(ForExpression forEx)