webuserdatapermission.html

j2ee帮助文档软件设计/软件工程 文件格式

getActions</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>getActions</B>()</PRE>
<DL>
<DD>Returns a canonical String representation of the actions of this
 WebUserDataPermission. The canonical form of the actions of a 
 WebUserDataPermission is described by the following syntax description.
 <P><Pre>

          ExtensionMethod ::= any token as defined by RFC 2616
                   (that is, 1*[any CHAR except CTLs or separators])

          HTTPMethod ::= "GET" | "POST" | "PUT" | "DELETE" | "HEAD" |
                   "OPTIONS" | "TRACE" | ExtensionMethod
          
          HTTPMethodList ::= HTTPMethod | HTTPMethodList comma HTTPMethod

          HTTPMethodExceptionList ::= exclaimationPoint HTTPMethodList

          HTTPMethodSpec ::= emptyString | HTTPMethodExceptionList |
                  HTTPMethodList

          transportType ::= "INTEGRAL" | "CONFIDENTIAL" | "NONE"

          actions ::= null | HTTPMethodList | 
                  HTTPMethodSpec colon transportType

 </Pre><P>
 If the permission's HTTP methods correspond to the entire HTTP method
 set and the permission's transport type is "INTEGRAL" or "CONFIDENTIAL", 
 the HTTP methods shall be represented in the canonical form by an 
 emptyString HTTPMethodSpec. If the permission's HTTP methods correspond
 to the entire HTTP method set, and the permission's transport type is not 
 "INTEGRAL"or "CONFIDENTIAL", the canonical actions value shall be the
 null value. 
<P>
 If the permission's methods do not correspond to the entire HTTP
 method set, duplicates must be eliminated and the remaining elements 
 must be ordered such that the predefined methods preceed the extension 
 methods, and such that within each method classification the corresponding 
 methods occur in ascending lexical order. 
 The resulting (non-emptyString) HTTPMethodSpec
 must be included in the canonical form, and if the permission's 
 transport type is not "INTEGRAL" or "CONFIDENTIAL", the canonical 
 actions value must be exactly the resulting HTTPMethodSpec.
 <P>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/security/Permission.html#getActions()" title="class or interface in java.security">getActions</A></CODE> in class <CODE><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/security/Permission.html" title="class or interface in java.security">Permission</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>a String containing the canonicalized actions of this
 WebUserDataPermission (or the null value).</DL>
</DD>
</DL>
<HR>

<A NAME="hashCode()"><!-- --></A><H3>
hashCode</H3>
<PRE>
public int <B>hashCode</B>()</PRE>
<DL>
<DD>Returns the hash code value for this WebUserDataPermission. The
 properties of the returned hash code must be as follows: <p>
 <ul>
 <li> During the lifetime of a Java application, the hashCode method
      shall return the same integer value every time it is called on a
      WebUserDataPermission object. The value returned by hashCode for a
      particular EJBMethod permission need not remain consistent from
      one execution of an application to another.
 <li> If two WebUserDataPermission objects are equal according to the
      equals method, then calling the hashCode method on each of the two
      Permission objects must produce the same integer result (within an
      application).
 </ul>
 <P>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/security/Permission.html#hashCode()" title="class or interface in java.security">hashCode</A></CODE> in class <CODE><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/security/Permission.html" title="class or interface in java.security">Permission</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the integer hash code value for this object.</DL>
</DD>
</DL>
<HR>

<A NAME="implies(java.security.Permission)"><!-- --></A><H3>
implies</H3>
<PRE>
public boolean <B>implies</B>(<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/security/Permission.html" title="class or interface in java.security">Permission</A>&nbsp;permission)</PRE>
<DL>
<DD>Determines if the argument Permission is "implied by" this
 WebUserDataPermission. For this to be the case all of the following
 must be true:<p>
 <ul>
 <li> The argument is an instanceof WebUserDataPermission.
 <li> The first URLPattern in the name of the argument permission
      is matched by the first URLPattern in the name of this permission.
 <li> The first URLPattern in the name of the argument permission
      is NOT matched by any URLPattern in the URLPatternList of the
      URLPatternSpec of this permission.
 <li> If the first URLPattern in the name of the argument permission
      matches the first URLPattern in the URLPatternSpec of this 
      permission, then every URLPattern in the URLPatternList of the
      URLPatternSpec of this permission is matched by a URLPattern
      in the URLPatternList of the argument permission.
 <li> The HTTP methods represented by the actions of the argument 
      permission are a subset of the HTTP methods represented by the
      actions of this permission.
 <li> The transportType in the actions of this permission 
      either corresponds to the value "NONE", or equals the 
      transportType in the actions of the argument permission.
 </ul>
 <P>
 URLPattern matching is performed using the <i>Servlet matching 
 rules</i> where two URL patterns match if they are related as follows:
 <p><ul>
 <li> their pattern values are String equivalent, or
 <li> this pattern is the path-prefix pattern "/*", or
 <li> this pattern is a path-prefix pattern (that is, it starts with 
      "/" and ends with "/*") and the argument pattern starts with the 
      substring of this pattern, minus its last 2 characters, and the
      next character of the argument pattern, if there is one, is "/", or
 <li> this pattern is an extension pattern (that is, it starts with 
      "*.") and the argument pattern ends with this pattern, or
 <li> the reference pattern is the special default pattern, "/",
      which matches all argument patterns.
 </ul>
 <P>
 All of the comparisons described above are case sensitive.
 <P>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/security/Permission.html#implies(java.security.Permission)" title="class or interface in java.security">implies</A></CODE> in class <CODE><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/security/Permission.html" title="class or interface in java.security">Permission</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>permission</CODE> - "this" WebUserDataPermission is checked to see if
 it implies the argument permission.
 <P>
<DT><B>Returns:</B><DD>true if the specified permission is implied by this object,
 false if not.</DL>
</DD>
</DL>
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