com.jclark.xsl.expr
Class AddExpr

java.lang.Object
  com.jclark.xsl.expr.ConvertibleExpr
      com.jclark.xsl.expr.ConvertibleNumberExpr
          com.jclark.xsl.expr.AddExpr

All Implemented Interfaces:

NumberExpr

class AddExpr

extends ConvertibleNumberExpr

a compiled XPath expression (component) that represents the addition of two sub-expressions

Constructor Summary

(package private)

AddExpr(NumberExpr expr1, NumberExpr expr2) construct with two NumberExpr(essions)

Method Summary

double	eval(Node node, ExprContext context) evaluate to result of a double
(package private) ConvertibleBooleanExpr	makeBooleanExpr() cast it as a boolean expression
(package private) ConvertibleNodeSetExpr	makeNodeSetExpr() cast it as a NodeSet expression (by default, don't)
(package private) ConvertibleNumberExpr	makeNumberExpr() cast it as a Number expression
(package private) ConvertibleBooleanExpr	makePredicateExpr() cast it as a Predicate expression
(package private) ConvertibleStringExpr	makeStringExpr() cast it as a String expression
(package private) ConvertibleVariantExpr	makeVariantExpr() cast it as a Variant (a variable or param you can bind to a name) expression

Methods inherited from class java.lang.Object

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

Constructor Detail

AddExpr

AddExpr(NumberExpr expr1,
        NumberExpr expr2)

construct with two NumberExpr(essions)

Method Detail

eval

public double eval(Node node,
                   ExprContext context)
            throws XSLException

evaluate to result of a double

Throws:

XSLException

makeNumberExpr

ConvertibleNumberExpr makeNumberExpr()

Description copied from class: ConvertibleExpr

cast it as a Number expression

Overrides:

makeNumberExpr in class ConvertibleExpr

makePredicateExpr

ConvertibleBooleanExpr makePredicateExpr()

Description copied from class: ConvertibleExpr

cast it as a Predicate expression

Overrides:

makePredicateExpr in class ConvertibleExpr

makeBooleanExpr

ConvertibleBooleanExpr makeBooleanExpr()

Description copied from class: ConvertibleExpr

cast it as a boolean expression

Specified by:

makeBooleanExpr in class ConvertibleExpr

makeVariantExpr

ConvertibleVariantExpr makeVariantExpr()

Description copied from class: ConvertibleExpr

cast it as a Variant (a variable or param you can bind to a name) expression

Specified by:

makeVariantExpr in class ConvertibleExpr

makeStringExpr

ConvertibleStringExpr makeStringExpr()

Description copied from class: ConvertibleExpr

cast it as a String expression

Specified by:

makeStringExpr in class ConvertibleExpr

makeNodeSetExpr

ConvertibleNodeSetExpr makeNodeSetExpr()
                                 throws ParseException

cast it as a NodeSet expression (by default, don't)

Throws:

ParseException