lux.xquery

Class Let

java.lang.Object

lux.xpath.AbstractExpression

lux.xquery.Let

All Implemented Interfaces:

Visitable

public class Let
extends AbstractExpression

Nested Class Summary

Nested classes/interfaces inherited from class lux.xpath.AbstractExpression

AbstractExpression.Type

Field Summary

Fields inherited from class lux.xpath.AbstractExpression

subs, sup

Constructor Summary

Constructors

Constructor and Description
Let(QName name, AbstractExpression assignment, AbstractExpression returnExp)

Method Summary

Methods

Modifier and Type	Method and Description
AbstractExpression	accept(ExpressionVisitor visitor)
AbstractExpression	getAssignment()
QName	getName()
int	getPrecedence()
AbstractExpression	getReturn()
boolean	isDocumentOrdered()
void	toString(StringBuilder buf) Each subclass must implement the toString(StringBuilder) method by appending itself as a syntatically valid XPath/XQuery expression in the given buffer.

Methods inherited from class lux.xpath.AbstractExpression

acceptSubs, appendSub, deepEquals, equivalent, geq, getBindingContext, getHead, getLastContextStep, getRoot, getSubs, getSuper, getTail, getType, isAbsolute, isRestrictive, matchDown, propEquals, propGreaterEqual, replaceRoot, setSubs, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Let

public Let(QName name,
   AbstractExpression assignment,
   AbstractExpression returnExp)

Method Detail

accept

public AbstractExpression accept(ExpressionVisitor visitor)

toString

public void toString(StringBuilder buf)

Description copied from class: AbstractExpression

Each subclass must implement the toString(StringBuilder) method by appending itself as a syntatically valid XPath/XQuery expression in the given buffer.

Specified by:

toString in class AbstractExpression

Parameters:

buf - the buffer to append to

getName

public QName getName()

getAssignment

public AbstractExpression getAssignment()

getReturn

public AbstractExpression getReturn()

isDocumentOrdered

public boolean isDocumentOrdered()

Overrides:

isDocumentOrdered in class AbstractExpression

Returns:

whether this expression is proven to return results in document order. This method returns true iff all its subs return true, or it has none. Warning: incorrect results may occur if document-ordering is falsely asserted.

getPrecedence

public int getPrecedence()

Specified by:

getPrecedence in class AbstractExpression

Returns:

a number indicating the *outer* precedence of this expression. Expressions with lower precedence numbers have lower precedence, ie bind more loosely, than expressions with higher precedence. Expressions with no sub-expressions are assigned a high precedence. Complex expressions can be seen as having an inner and an outer precedence; for example function call expressions behave as a comma with regard to their sub-expressions, the arguments, and like parentheses to their enclosing expression.