Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class ContentHandler - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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Java^TM 2 Platform
Standard Edition

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java.net
Class ContentHandler

java.lang.Object
  |
  +--java.net.ContentHandler

public abstract class ContentHandler
extends Object

The abstract class ContentHandler is the superclass of all classes that read an Object from a URLConnection.

An application does not generally call the getContent method in this class directly. Instead, an application calls the getContent method in class URL or in URLConnection. The application's content handler factory (an instance of a class that implements the interface ContentHandlerFactory set up by a call to setContentHandler) is called with a String giving the MIME type of the object being received on the socket. The factory returns an instance of a subclass of ContentHandler, and its getContent method is called to create the object.

Since:: JDK1.0
See Also:: getContent(java.net.URLConnection), ContentHandlerFactory, URL.getContent(), URLConnection, URLConnection.getContent(), URLConnection.setContentHandlerFactory(java.net.ContentHandlerFactory)

Constructor Summary

ContentHandler()

Method Summary

abstract Object getContent(URLConnection urlc)
Given a URL connect stream positioned at the beginning of the representation of an object, this method reads that stream and creates an object from it.

Methods inherited from class java.lang.Object

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

Constructor Detail

ContentHandler

public ContentHandler()

Method Detail

getContent

public abstract Object getContent(URLConnection urlc)
                           throws IOException

Given a URL connect stream positioned at the beginning of the representation of an object, this method reads that stream and creates an object from it.

Parameters:: urlc - a URL connection.
Returns:: the object read by the ContentHandler.
Throws:: IOException - if an I/O error occurs while reading the object.