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gnu.java.net.protocol.jar
Class Connection  

java.lang.Object
  java.net.URLConnection
      java.net.JarURLConnection
          gnu.java.net.protocol.jar.Connection

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public final class Connection

extends java.net.JarURLConnection

This subclass of java.net.JarURLConnection models a URLConnection via the "jar" protocol.

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Nested Class Summary
static class	Connection.JarFileCache

 

Field Summary
private static java.text.SimpleDateFormat	dateFormat           HTTP-style DateFormat, used to format the last-modified header.
private  java.util.jar.JarEntry	jar_entry
private  java.util.jar.JarFile	jar_file
private  java.net.URL	jar_url

 

Fields inherited from class java.net.JarURLConnection

jarFileURLConnection

 

Fields inherited from class java.net.URLConnection

allowUserInteraction, connected, doInput, doOutput, ifModifiedSince, url, useCaches

 

Constructor Summary
protected	Connection(java.net.URL url)

 

Method Summary
void	connect()           Establishes the actual connection to the URL associated with this connection object
int	getContentLength()           Returns the value of the content-length header field or -1 if the value is not known or not present.
java.lang.String	getHeaderField(java.lang.String field)           Returns a String representing the value of the header field having the named key.
java.io.InputStream	getInputStream()           Returns an InputStream for this connection.
java.util.jar.JarFile	getJarFile()           Returns a read-only JarFile object for the remote jar file
long	getLastModified()           Returns the value of the last-modified header field or 0 if not known known or not present.

 

Methods inherited from class java.net.JarURLConnection

getAttributes, getCertificates, getEntryName, getJarEntry, getJarFileURL, getMainAttributes, getManifest

 

Methods inherited from class java.net.URLConnection

addRequestProperty, getAllowUserInteraction, getContent, getContent, getContentEncoding, getContentType, getDate, getDefaultAllowUserInteraction, getDefaultRequestProperty, getDefaultUseCaches, getDoInput, getDoOutput, getExpiration, getFileNameMap, getHeaderField, getHeaderFieldDate, getHeaderFieldInt, getHeaderFieldKey, getHeaderFields, getIfModifiedSince, getOutputStream, getPermission, getRequestProperties, getRequestProperty, getURL, getUseCaches, guessContentTypeFromName, guessContentTypeFromStream, setAllowUserInteraction, setContentHandlerFactory, setDefaultAllowUserInteraction, setDefaultRequestProperty, setDefaultUseCaches, setDoInput, setDoOutput, setFileNameMap, setIfModifiedSince, setRequestProperty, setUseCaches, toString

 

Methods inherited from class java.lang.Object

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

 

Field Detail

dateFormat

private static java.text.SimpleDateFormat dateFormat

HTTP-style DateFormat, used to format the last-modified header. Lazy initialized since jar files are used during bootstrapping.

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jar_file

private java.util.jar.JarFile jar_file

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jar_entry

private java.util.jar.JarEntry jar_entry

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jar_url

private java.net.URL jar_url

Constructor Detail

Connection

protected Connection(java.net.URL url)
              throws java.net.MalformedURLException

Method Detail

connect

public void connect()
             throws java.io.IOException

Description copied from class: java.net.URLConnection

Establishes the actual connection to the URL associated with this connection object

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getInputStream

public java.io.InputStream getInputStream()
                                   throws java.io.IOException

Description copied from class: java.net.URLConnection

Returns an InputStream for this connection. As this default implementation returns null, subclasses should override this method

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getJarFile

public java.util.jar.JarFile getJarFile()
                                 throws java.io.IOException

Description copied from class: java.net.JarURLConnection

Returns a read-only JarFile object for the remote jar file

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getHeaderField

public java.lang.String getHeaderField(java.lang.String field)

Description copied from class: java.net.URLConnection

Returns a String representing the value of the header field having the named key. Returns null if the header field does not exist.

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getContentLength

public int getContentLength()

Description copied from class: java.net.URLConnection

Returns the value of the content-length header field or -1 if the value is not known or not present.

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getLastModified

public long getLastModified()

Description copied from class: java.net.URLConnection

Returns the value of the last-modified header field or 0 if not known known or not present. If populated, the return value is the number of seconds since midnight on 1/1/1970.

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> gnu >> java >> net >> protocol >> [ jar overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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