Package org.exolab.adaptx.xpath

Class XPathResult

java.lang.Object

org.exolab.adaptx.xpath.XPathResult

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

BooleanResult, NodeSet, NumberResult, StringResult, XSLTFunctionResult

public abstract class XPathResult
extends java.lang.Object
implements java.io.Serializable

Abstract class representing the result of an XPath expression. An XPath result can be one of the following four types:

• A boolean result of type BOOLEAN represented by an object of type BooleanResult.
• A string result of type STRING represented by an object of type StringResult.
• A number result of type NUMBER represented by an object of type NumberResult.
• A node-set result of type NODE_SET represented by an object of type NodeSet.

Version:

$Revision: 3633 $

Author:

Keith Visco, Assaf Arkin

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static int	BOOLEAN	An XPath result of type boolean.
static int	NODE_SET	An XPath result of type node-set.
static int	NUMBER	An XPath result of type number.
static int	STRING	An XPath result of type string.
static int	USER_DEFINED	An XPath result used for XPath extensions

Constructor Summary

Constructors

Constructor	Description
XPathResult()

Method Summary

Modifier and Type	Method	Description
abstract boolean	booleanValue()	Returns the result as a boolean value.
abstract boolean	equals(XPathResult result)	Returns true if the given expression is the same tyoe as this result and has the same value as this result.
abstract int	getResultType()	Returns the type of this result.
abstract java.lang.Object	javaObject()	Returns the result as a Java object.
abstract double	numberValue()	Returns the result as a number value.
abstract java.lang.String	stringValue()	Returns the result as a string value.

Methods inherited from class java.lang.Object

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

Field Detail

BOOLEAN

public static final int BOOLEAN

An XPath result of type boolean. Returned by BooleanResult.

See Also:

Constant Field Values

NUMBER

public static final int NUMBER

An XPath result of type number. Returned by NumberResult.

See Also:

Constant Field Values

STRING

public static final int STRING

An XPath result of type string. Returned by StringResult.

See Also:

Constant Field Values

NODE_SET

public static final int NODE_SET

An XPath result of type node-set. Returned by NodeSet.

See Also:

Constant Field Values

USER_DEFINED

public static final int USER_DEFINED

An XPath result used for XPath extensions

See Also:

Constant Field Values

Constructor Detail

XPathResult

public XPathResult()

Method Detail

getResultType

public abstract int getResultType()

Returns the type of this result.

Returns:

The type of this result

booleanValue

public abstract boolean booleanValue()

Returns the result as a boolean value. Returns the value of a boolean result, true for a non-empty string result, true for a non-zero number result, and true from a non-empty node-set.

Returns:

The result as a boolean value

numberValue

public abstract double numberValue()

Returns the result as a number value. Returns 0 or 1 for a boolean result, the parsed value for a string result, the value of a number result, or the parsed value of a node-set.

Returns:

The result as a number value

stringValue

public abstract java.lang.String stringValue()

Returns the result as a string value. Returns "false" or "true" for a boolean result, the value of a string result, the string value of a number result, or the string value of a node-set.

Returns:

The result as a string value

javaObject

public abstract java.lang.Object javaObject()

Returns the result as a Java object. Returns an object of type Boolean for a boolean result, an object of type String for a string result, an object of type Double for a number result, or an object of type NodeSet for a node-set.

Returns:

The result as a Java object

equals

public abstract boolean equals(XPathResult result)

Returns true if the given expression is the same tyoe as this result and has the same value as this result.

Parameters:

result - An XPath result

Returns:

True if same type and same value as this result