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Java Source Code / Java Documentation » Byte Code » Javassist » javassist

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

javassist .URLClassPath

URLClassPath
public class URLClassPath implements ClassPath(Code)
	A class search-path specified with URL (http). See Also: javassist.ClassPath See Also: ClassPool.insertClassPath(ClassPath) See Also: ClassPool.appendClassPath(ClassPath)

Field Summary
protected String	directory
protected String	hostname
protected String	packageName
protected int	port

Constructor Summary

public

URLClassPath(String host, int port, String directory, String packageName)
Creates a search path specified with URL (http).

This search path is used only if a requested class name starts with the name specified by packageName. If packageName is "org.javassist." and a requested class is "org.javassist.test.Main", then the given URL is used for loading that class. The URLClassPath obtains a class file from:

http://www.javassist.org:80/java/classes/org/javassist/test/Main.class

Here, we assume that host is "www.javassist.org", port is 80, and directory is "/java/classes/".

If packageName is null, the URL is used for loading any class.
Parameters:
  host - host name
Parameters:
  port - port number
Parameters:
  directory - directory name ending with "/".It can be "/" (root directory).It must start with "/".
Parameters:
  packageName - package name.

Method Summary
public void	close() Closes this class path.
public static byte[]	fetchClass(String host, int port, String directory, String classname) Reads a class file on an http server.
public URL	find(String classname) Returns the URL. null if the class file could not be obtained.
public InputStream	openClassfile(String classname) Opens a class file with http. null if the class file could not be found.
public String	toString()

Field Detail

directory
protected String directory(Code)

hostname
protected String hostname(Code)

packageName
protected String packageName(Code)

port
protected int port(Code)

Constructor Detail

URLClassPath

public URLClassPath(String host, int port, String directory, String packageName)(Code)

Creates a search path specified with URL (http).

http://www.javassist.org:80/java/classes/org/javassist/test/Main.class

Here, we assume that host is "www.javassist.org", port is 80, and directory is "/java/classes/".

Method Detail

close
public void close()(Code)
	Closes this class path.

fetchClass
public static byte[] fetchClass(String host, int port, String directory, String classname) throws IOException(Code)
	Reads a class file on an http server. Parameters: host - host name Parameters: port - port number Parameters: directory - directory name ending with "/".It can be "/" (root directory).It must start with "/". Parameters: classname - fully-qualified class name

find
public URL find(String classname)(Code)
	Returns the URL. null if the class file could not be obtained.

openClassfile
public InputStream openClassfile(String classname)(Code)
	Opens a class file with http. null if the class file could not be found.

toString
public String toString()(Code)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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