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XPathType (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

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javax.xml.crypto.dsig.spec
Class XPathType

java.lang.Object
  javax.xml.crypto.dsig.spec.XPathType

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public class XPathType
extends Object

The XML Schema Definition of the XPath element as defined in the W3C Recommendation for XML-Signature XPath Filter 2.0:

 <schema xmlns="http://www.w3.org/2001/XMLSchema"
         xmlns:xf="http://www.w3.org/2002/06/xmldsig-filter2"
         targetNamespace="http://www.w3.org/2002/06/xmldsig-filter2"
         version="0.1" elementFormDefault="qualified">

 <element name="XPath"
          type="xf:XPathType"/>

 <complexType name="XPathType">
   <simpleContent>
     <extension base="string">
       <attribute name="Filter">
         <simpleType>
           <restriction base="string">
             <enumeration value="intersect"/>
             <enumeration value="subtract"/>
             <enumeration value="union"/>
           </restriction>
         </simpleType>
       </attribute>
     </extension>
   </simpleContent>
 </complexType>
 

Since:

1.6

See Also:

XPathFilter2ParameterSpec

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Nested Class Summary
static class	XPathType.Filter           Represents the filter set operation.

 

Constructor Summary
XPathType(String expression, XPathType.Filter filter)           Creates an XPathType instance with the specified XPath expression and filter.
XPathType(String expression, XPathType.Filter filter, Map namespaceMap)           Creates an XPathType instance with the specified XPath expression, filter, and namespace map.

 

Method Summary
String	getExpression()           Returns the XPath expression to be evaluated.
XPathType.Filter	getFilter()           Returns the filter operation.
Map	getNamespaceMap()           Returns a map of namespace prefixes.

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

XPathType

public XPathType(String expression,
                 XPathType.Filter filter)

Creates an XPathType instance with the specified XPath expression and filter.

Parameters:

expression - the XPath expression to be evaluated

filter - the filter operation (XPathType.Filter.INTERSECT, XPathType.Filter.SUBTRACT, or XPathType.Filter.UNION)

Throws:

NullPointerException - if expression or filter is null

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XPathType

public XPathType(String expression,
                 XPathType.Filter filter,
                 Map namespaceMap)

Creates an XPathType instance with the specified XPath expression, filter, and namespace map. The map is copied to protect against subsequent modification.

Parameters:

expression - the XPath expression to be evaluated

filter - the filter operation (XPathType.Filter.INTERSECT, XPathType.Filter.SUBTRACT, or XPathType.Filter.UNION)

namespaceMap - the map of namespace prefixes. Each key is a namespace prefix String that maps to a corresponding namespace URI String.

Throws:

NullPointerException - if expression, filter or namespaceMap are null

ClassCastException - if any of the map's keys or entries are not of type String

Method Detail

getExpression

public String getExpression()

Returns the XPath expression to be evaluated.

Returns:

the XPath expression to be evaluated

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getFilter

public XPathType.Filter getFilter()

Returns the filter operation.

Returns:

the filter operation

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getNamespaceMap

public Map getNamespaceMap()

Returns a map of namespace prefixes. Each key is a namespace prefix String that maps to a corresponding namespace URI String.

This implementation returns an unmodifiable map.

Returns:

a Map of namespace prefixes to namespace URIs (may be empty, but never null)

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For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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