com.caucho.xpath.expr

Class FunExpr

java.lang.Object

com.caucho.xpath.Expr

com.caucho.xpath.expr.FunExpr

public class FunExpr
extends Expr

Expressions based on custom library extensions.

Field Summary

Fields inherited from class com.caucho.xpath.Expr

ADD, AND, ATTRIBUTE, BASE_URI, BOOLEAN, BOOLEAN_EQ, BOOLEAN_NEQ, CEILING, CONCAT, CONST, CONTAINS, COUNT, DIV, ELEMENT, EQ, FALSE, FLOOR, FORMAT_NUMBER, FUNCTION_AVAILABLE, GE, GENERATE_ID, GT, ID, IF, LANG, LAST, LAST_FUN, LE, LOCAL_PART, LT, MOD, MUL, NAMESPACE, NEG, NEQ, NODE_SET, NORMALIZE, NOT, NUMBER, NUMBER_EQ, NUMBER_GE, NUMBER_GT, NUMBER_LE, NUMBER_LT, NUMBER_NEQ, OR, POSITION, QNAME, QUO, ROUND, SELF, SELF_NAME, STARTS_WITH, STRING, STRING_EQ, STRING_LENGTH, STRING_NEQ, SUB, SUBSTRING, SUBSTRING_AFTER, SUBSTRING_BEFORE, SUM, SYSTEM_PROPERTY, TRANSLATE, TRUE

Constructor Summary

Constructors

Constructor and Description
FunExpr(java.lang.String name, AbstractPattern pattern, java.util.ArrayList<Expr> args)

Method Summary

Modifier and Type	Method and Description
boolean	evalBoolean(org.w3c.dom.Node node, ExprEnvironment env) Returns the boolean value of the node.
double	evalNumber(org.w3c.dom.Node node, ExprEnvironment env) Evaluates the expression as a number.
java.lang.Object	evalObject(org.w3c.dom.Node node, ExprEnvironment env) Returns the object value of the node.
java.lang.String	evalString(org.w3c.dom.Node node, ExprEnvironment env) Returns the string value of the node.
java.lang.String	toString()

Methods inherited from class com.caucho.xpath.Expr

addParam, addVar, evalBoolean, evalNodeSet, evalNodeSet, evalNumber, evalObject, evalString, evalString, evalString, evalVar, getListContext, isBoolean, isNodeSet, isNumber, isString, setListContext, setVar, stringToNumber, toBoolean, toDouble, toNode, toNodeList, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

FunExpr

public FunExpr(java.lang.String name,
               AbstractPattern pattern,
               java.util.ArrayList<Expr> args)

Method Detail

evalBoolean

public boolean evalBoolean(org.w3c.dom.Node node,
                           ExprEnvironment env)
                    throws XPathException

Description copied from class: Expr

Returns the boolean value of the node.

Specified by:

evalBoolean in class Expr

Parameters:

node - the node to evaluate and use as a context

env - variable environment.

Returns:

the boolean value.

Throws:

XPathException

evalNumber

public double evalNumber(org.w3c.dom.Node node,
                         ExprEnvironment env)
                  throws XPathException

Description copied from class: Expr

Evaluates the expression as a number.

Specified by:

evalNumber in class Expr

Parameters:

node - the current node.

env - variable environment.

Returns:

the numeric value.

Throws:

XPathException

evalString

public java.lang.String evalString(org.w3c.dom.Node node,
                                   ExprEnvironment env)
                            throws XPathException

Description copied from class: Expr

Returns the string value of the node.

Specified by:

evalString in class Expr

Parameters:

node - the node to evaluate and use as a context

env - variable environment.

Throws:

XPathException

evalObject

public java.lang.Object evalObject(org.w3c.dom.Node node,
                                   ExprEnvironment env)
                            throws XPathException

Description copied from class: Expr

Returns the object value of the node.

Specified by:

evalObject in class Expr

Parameters:

node - the node to evaluate and use as a context

env - variable environment.

Throws:

XPathException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object