com.caucho.xpath.expr
Class VarExpr

java.lang.Object
  com.caucho.xpath.Expr
      com.caucho.xpath.expr.VarExpr

public class VarExpr
extends Expr

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

VarExpr(java.lang.String name)

Method Summary

boolean	evalBoolean(org.w3c.dom.Node node, ExprEnvironment env) Returns the value of the variable as a boolean.
NodeIterator	evalNodeSet(org.w3c.dom.Node node, ExprEnvironment env) Returns the value of the variable as a node set.
double	evalNumber(org.w3c.dom.Node node, ExprEnvironment env) Returns the value of the variable as a double.
java.lang.Object	evalObject(org.w3c.dom.Node node, ExprEnvironment env) Returns the value of the variable as an object
void	evalString(CharBuffer cb, org.w3c.dom.Node node, ExprEnvironment env) Returns the value of the variable as a string
java.lang.String	evalString(org.w3c.dom.Node node, ExprEnvironment env) Returns the value of the variable as a string
Var	evalVar(org.w3c.dom.Node node, ExprEnvironment env) Returns the value of the variable as an variable
java.lang.String	toString()

Methods inherited from class com.caucho.xpath.Expr

addParam, addVar, evalBoolean, evalNodeSet, evalNumber, evalObject, evalString, evalString, 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

VarExpr

public VarExpr(java.lang.String name)

Method Detail

evalBoolean

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

Returns the value of the variable as a boolean.

Specified by:

evalBoolean in class Expr

Parameters:

node - the current node

env - the XPath envivonment

Returns:

the boolean value

Throws:

XPathException

evalNumber

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

Returns the value of the variable as a double.

Specified by:

evalNumber in class Expr

Parameters:

node - the current node

env - the XPath envivonment

Returns:

the double value

Throws:

XPathException

evalString

public void evalString(CharBuffer cb,
                       org.w3c.dom.Node node,
                       ExprEnvironment env)
                throws XPathException

Returns the value of the variable as a string

Overrides:

evalString in class Expr

Parameters:

cb - the buffer to append the value

node - the current node

env - the XPath envivonment

Throws:

XPathException

evalString

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

Returns the value of the variable as a string

Specified by:

evalString in class Expr

Parameters:

env - the XPath envivonment

node - the current node

Returns:

the string value

Throws:

XPathException

evalObject

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

Returns the value of the variable as an object

Specified by:

evalObject in class Expr

Parameters:

env - the XPath envivonment

node - the current node

Returns:

the value

Throws:

XPathException

evalVar

public Var evalVar(org.w3c.dom.Node node,
                   ExprEnvironment env)
            throws XPathException

Returns the value of the variable as an variable

Overrides:

evalVar in class Expr

Parameters:

node - the current node

env - the XPath envivonment

Returns:

the value

Throws:

XPathException

evalNodeSet

public NodeIterator evalNodeSet(org.w3c.dom.Node node,
                                ExprEnvironment env)
                         throws XPathException

Returns the value of the variable as a node set.

Overrides:

evalNodeSet in class Expr

Parameters:

node - the current node

env - the variable envivonment

Returns:

the value

Throws:

XPathException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object