org.jaxen.function

クラス NamespaceUriFunction

java.lang.Object

org.jaxen.function.NamespaceUriFunction

すべての実装されたインタフェース:

Function

public class NamespaceUriFunction
extends Object
implements Function

4.1 string namespace-uri(node-set?)

The namespace-uri function returns the namespace URI of the expanded-name of the node in the argument node-set that is first in document order. If the argument node-set is empty, the first node has no expanded-name, or the namespace URI of the expanded-name is null, an empty string is returned. If the argument is omitted, it defaults to a node-set with the context node as its only member.

NOTE: The string returned by the namespace-uri function will be empty except for element nodes and attribute nodes.

作成者:

bob mcwhirter (bob @ werken.com)

関連項目:

Section 4.1 of the XPath Specification

コンストラクタの概要

コンストラクタ

コンストラクタと説明
NamespaceUriFunction() Create a new NamespaceUriFunction object.

メソッドの概要

メソッド

修飾子とタイプ	メソッドと説明
Object	call(Context context, List args) Returns the namespace URI of the specified node or the namespace URI of the context node if no arguments are provided.
static String	evaluate(List list, Navigator nav) Returns the namespace URI of list.get(0)

クラスから継承されたメソッド java.lang.Object

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

コンストラクタの詳細

NamespaceUriFunction

public NamespaceUriFunction()

Create a new NamespaceUriFunction object.

メソッドの詳細

call

public Object call(Context context,
          List args)
            throws FunctionCallException

Returns the namespace URI of the specified node or the namespace URI of the context node if no arguments are provided.

定義:

call インタフェース内 Function

パラメータ:

context - the context at the point in the expression where the function is called

args - a List containing zero or one items

戻り値:

a String containing the namespace URI

例外:

FunctionCallException - if args has more than one item

evaluate

public static String evaluate(List list,
              Navigator nav)
                       throws FunctionCallException

Returns the namespace URI of list.get(0)

パラメータ:

list - a list of nodes

nav - the Navigator used to retrieve the namespace

戻り値:

the namespace URI of list.get(0)

例外:

FunctionCallException - if list.get(0) is not a node