URLNavigationProvider - JBOSS Portal 2.2 API 英文版文档

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org.jboss.portal.common.net
Interface URLNavigationProvider

All Known Implementing Classes:: FileURLNavigationProvider, JarURLNavigationProvider

public interface URLNavigationProvider

Defines an interface that provides navigation for URLs.

Method Summary

java.util.Iterator getChildren(java.net.URL url)
          Returns an iterator over the children of the URL.

boolean isDir(java.net.URL url)
          Return true if the url represents a directory.

void visit(java.net.URL url, URLVisitor visitor)
          Visit all the children recursively.

Method Detail

isDir

public boolean isDir(java.net.URL url)
              throws java.lang.IllegalArgumentException,
                     java.io.IOException

Return true if the url represents a directory.

Parameters:: url - the target url
Returns:: true if this URL reprensents a directory
Throws:: java.lang.IllegalArgumentException - if the url is null or is not accepted; java.io.IOException

getChildren

public java.util.Iterator getChildren(java.net.URL url)
                               throws java.lang.IllegalArgumentException,
                                      java.io.IOException

Returns an iterator over the children of the URL.

Parameters:: url - the target url
Returns:: an iterator over the children of the url
Throws:: java.lang.IllegalArgumentException - if the url is null or is not accepted; java.io.IOException

visit

public void visit(java.net.URL url,
                  URLVisitor visitor)
           throws java.lang.IllegalArgumentException,
                  java.io.IOException

Visit all the children recursively.

Parameters:: url - the target url; visitor - the visitor
Throws:: java.lang.IllegalArgumentException - if an argument is null or if the url is not accepted; java.io.IOException - s