commandmap.html

j2ee帮助文档软件设计/软件工程 文件格式

<DL>
<DD>Get the default CommandMap.
 <p>

 <ul>
 <li> In cases where a CommandMap instance has been previously set
      to some value (via <i>setDefaultCommandMap</i>)
  return the CommandMap.
 <li>
  In cases where no CommandMap has been set, the CommandMap
       creates an instance of <code>MailcapCommandMap</code> and
       set that to the default, returning its value.

 </ul>
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the CommandMap</DL>
</DD>
</DL>
<HR>

<A NAME="setDefaultCommandMap(javax.activation.CommandMap)"><!-- --></A><H3>
setDefaultCommandMap</H3>
<PRE>
public static void <B>setDefaultCommandMap</B>(<A HREF="../../javax/activation/CommandMap.html" title="class in javax.activation">CommandMap</A>&nbsp;commandMap)</PRE>
<DL>
<DD>Set the default CommandMap. Reset the CommandMap to the default by
 calling this method with <code>null</code>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>commandMap</CODE> - The new default CommandMap.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/SecurityException.html" title="class or interface in java.lang">SecurityException</A></CODE> - if the caller doesn't have permission
                                        to change the default</DL>
</DD>
</DL>
<HR>

<A NAME="getPreferredCommands(java.lang.String)"><!-- --></A><H3>
getPreferredCommands</H3>
<PRE>
public abstract <A HREF="../../javax/activation/CommandInfo.html" title="class in javax.activation">CommandInfo</A>[] <B>getPreferredCommands</B>(<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;mimeType)</PRE>
<DL>
<DD>Get the preferred command list from a MIME Type. The actual semantics
 are determined by the implementation of the CommandMap.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>mimeType</CODE> - the MIME type
<DT><B>Returns:</B><DD>the CommandInfo classes that represent the command Beans.</DL>
</DD>
</DL>
<HR>

<A NAME="getPreferredCommands(java.lang.String, javax.activation.DataSource)"><!-- --></A><H3>
getPreferredCommands</H3>
<PRE>
public <A HREF="../../javax/activation/CommandInfo.html" title="class in javax.activation">CommandInfo</A>[] <B>getPreferredCommands</B>(<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;mimeType,
                                          <A HREF="../../javax/activation/DataSource.html" title="interface in javax.activation">DataSource</A>&nbsp;ds)</PRE>
<DL>
<DD>Get the preferred command list from a MIME Type. The actual semantics
 are determined by the implementation of the CommandMap. <p>

 The <code>DataSource</code> provides extra information, such as
 the file name, that a CommandMap implementation may use to further
 refine the list of commands that are returned.  The implementation
 in this class simply calls the <code>getPreferredCommands</code>
 method that ignores this argument.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>mimeType</CODE> - the MIME type<DD><CODE>ds</CODE> - a DataSource for the data
<DT><B>Returns:</B><DD>the CommandInfo classes that represent the command Beans.<DT><B>Since:</B></DT>
  <DD>JAF 1.1</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="getAllCommands(java.lang.String)"><!-- --></A><H3>
getAllCommands</H3>
<PRE>
public abstract <A HREF="../../javax/activation/CommandInfo.html" title="class in javax.activation">CommandInfo</A>[] <B>getAllCommands</B>(<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;mimeType)</PRE>
<DL>
<DD>Get all the available commands for this type. This method
 should return all the possible commands for this MIME type.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>mimeType</CODE> - the MIME type
<DT><B>Returns:</B><DD>the CommandInfo objects representing all the commands.</DL>
</DD>
</DL>
<HR>

<A NAME="getAllCommands(java.lang.String, javax.activation.DataSource)"><!-- --></A><H3>
getAllCommands</H3>
<PRE>
public <A HREF="../../javax/activation/CommandInfo.html" title="class in javax.activation">CommandInfo</A>[] <B>getAllCommands</B>(<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;mimeType,
                                    <A HREF="../../javax/activation/DataSource.html" title="interface in javax.activation">DataSource</A>&nbsp;ds)</PRE>
<DL>
<DD>Get all the available commands for this type. This method
 should return all the possible commands for this MIME type. <p>

 The <code>DataSource</code> provides extra information, such as
 the file name, that a CommandMap implementation may use to further
 refine the list of commands that are returned.  The implementation
 in this class simply calls the <code>getAllCommands</code>
 method that ignores this argument.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>mimeType</CODE> - the MIME type<DD><CODE>ds</CODE> - a DataSource for the data
<DT><B>Returns:</B><DD>the CommandInfo objects representing all the commands.<DT><B>Since:</B></DT>
  <DD>JAF 1.1</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="getCommand(java.lang.String, java.lang.String)"><!-- --></A><H3>
getCommand</H3>
<PRE>
public abstract <A HREF="../../javax/activation/CommandInfo.html" title="class in javax.activation">CommandInfo</A> <B>getCommand</B>(<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;mimeType,
                                       <A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;cmdName)</PRE>
<DL>
<DD>Get the default command corresponding to the MIME type.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>mimeType</CODE> - the MIME type<DD><CODE>cmdName</CODE> - the command name
<DT><B>Returns:</B><DD>the CommandInfo corresponding to the command.</DL>
</DD>
</DL>
<HR>

<A NAME="getCommand(java.lang.String, java.lang.String, javax.activation.DataSource)"><!-- --></A><H3>
getCommand</H3>
<PRE>
public <A HREF="../../javax/activation/CommandInfo.html" title="class in javax.activation">CommandInfo</A> <B>getCommand</B>(<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;mimeType,
                              <A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;cmdName,
                              <A HREF="../../javax/activation/DataSource.html" title="interface in javax.activation">DataSource</A>&nbsp;ds)</PRE>
<DL>
<DD>Get the default command corresponding to the MIME type. <p>

 The <code>DataSource</code> provides extra information, such as
 the file name, that a CommandMap implementation may use to further
 refine the command that is chosen.  The implementation
 in this class simply calls the <code>getCommand</code>
 method that ignores this argument.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>mimeType</CODE> - the MIME type<DD><CODE>cmdName</CODE> - the command name<DD><CODE>ds</CODE> - a DataSource for the data
<DT><B>Returns:</B><DD>the CommandInfo corresponding to the command.<DT><B>Since:</B></DT>
  <DD>JAF 1.1</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="createDataContentHandler(java.lang.String)"><!-- --></A><H3>
createDataContentHandler</H3>
<PRE>
public abstract <A HREF="../../javax/activation/DataContentHandler.html" title="interface in javax.activation">DataContentHandler</A> <B>createDataContentHandler</B>(<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;mimeType)</PRE>
<DL>
<DD>Locate a DataContentHandler that corresponds to the MIME type.
 The mechanism and semantics for determining this are determined
 by the implementation of the particular CommandMap.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>mimeType</CODE> - the MIME type
<DT><B>Returns:</B><DD>the DataContentHandler for the MIME type</DL>
</DD>
</DL>
<HR>

<A NAME="createDataContentHandler(java.lang.String, javax.activation.DataSource)"><!-- --></A><H3>
createDataContentHandler</H3>
<PRE>
public <A HREF="../../javax/activation/DataContentHandler.html" title="interface in javax.activation">DataContentHandler</A> <B>createDataContentHandler</B>(<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;mimeType,
                                                   <A HREF="../../javax/activation/DataSource.html" title="interface in javax.activation">DataSource</A>&nbsp;ds)</PRE>
<DL>
<DD>Locate a DataContentHandler that corresponds to the MIME type.
 The mechanism and semantics for determining this are determined
 by the implementation of the particular CommandMap. <p>

 The <code>DataSource</code> provides extra information, such as
 the file name, that a CommandMap implementation may use to further
 refine the choice of DataContentHandler.  The implementation
 in this class simply calls the <code>createDataContentHandler</code>
 method that ignores this argument.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>mimeType</CODE> - the MIME type<DD><CODE>ds</CODE> - a DataSource for the data
<DT><B>Returns:</B><DD>the DataContentHandler for the MIME type<DT><B>Since:</B></DT>
  <DD>JAF 1.1</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="getMimeTypes()"><!-- --></A><H3>
getMimeTypes</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>getMimeTypes</B>()</PRE>
<DL>
<DD>Get all the MIME types known to this command map.
 If the command map doesn't support this operation,
 null is returned.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>array of MIME types as strings, or null if not supported<DT><B>Since:</B></DT>
  <DD>JAF 1.1</DD>
</DL>
</DD>
</DL>
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