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Java Source Code / Java Documentation » Apache Harmony Java SE » java package » java.util.jar 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   java.util.zip.ZipFile
      java.util.jar.JarFile

JarFile
public class JarFile extends ZipFile (Code)
JarFile is used to read jar entries and their associated data from jar files.
See Also:   JarInputStream
See Also:   JarEntry

Inner Class :final static class JarFileInputStream extends FilterInputStream

Field Summary
final public static  StringMANIFEST_NAME
    
final static  StringMETA_DIR
    
 JarVerifierverifier
    

Constructor Summary
public  JarFile(File file)
     Create a new JarFile using the contents of file.
public  JarFile(File file, boolean verify)
     Create a new JarFile using the contents of file.
public  JarFile(File file, boolean verify, int mode)
     Create a new JarFile using the contents of file.
public  JarFile(String filename)
     Create a new JarFile from the contents of the file specified by filename.
public  JarFile(String filename, boolean verify)
     Create a new JarFile from the contents of the file specified by filename.

Method Summary
public  Enumeration<JarEntry>entries()
     Return an enumeration containing the JarEntrys contained in this JarFile.
public  ZipEntrygetEntry(String name)
    
public  InputStreamgetInputStream(ZipEntry ze)
     Return an InputStream for reading the decompressed contents of ze.
public  JarEntrygetJarEntry(String name)
     Return the JarEntry specified by name or null if no such entry exists.
public  ManifestgetManifest()
     Returns the Manifest object associated with this JarFile or null if no manifest entry exists.

Field Detail
MANIFEST_NAME
final public static String MANIFEST_NAME(Code)



META_DIR
final static String META_DIR(Code)



verifier
JarVerifier verifier(Code)




Constructor Detail
JarFile
public JarFile(File file) throws IOException(Code)
Create a new JarFile using the contents of file.
Parameters:
  file - java.io.File
exception:
  java.io.IOException - If the file cannot be read.



JarFile
public JarFile(File file, boolean verify) throws IOException(Code)
Create a new JarFile using the contents of file.
Parameters:
  file - java.io.File
Parameters:
  verify - verify a signed jar file
exception:
  java.io.IOException - If the file cannot be read.



JarFile
public JarFile(File file, boolean verify, int mode) throws IOException(Code)
Create a new JarFile using the contents of file.
Parameters:
  file - java.io.File
Parameters:
  verify - verify a signed jar file
Parameters:
  mode - the mode to use, either OPEN_READ or OPEN_READ | OPEN_DELETE
exception:
  java.io.IOException - If the file cannot be read.



JarFile
public JarFile(String filename) throws IOException(Code)
Create a new JarFile from the contents of the file specified by filename.
Parameters:
  filename - java.lang.String
exception:
  java.io.IOException - If fileName cannot be opened for reading.



JarFile
public JarFile(String filename, boolean verify) throws IOException(Code)
Create a new JarFile from the contents of the file specified by filename.
Parameters:
  filename - java.lang.String
Parameters:
  verify - verify a signed jar file
exception:
  java.io.IOException - If fileName cannot be opened for reading.




Method Detail
entries
public Enumeration<JarEntry> entries()(Code)
Return an enumeration containing the JarEntrys contained in this JarFile. java.util.Enumeration
exception:
  java.lang.IllegalStateException - If this JarFile has been closed.



getEntry
public ZipEntry getEntry(String name)(Code)
Return the JarEntry specified by name or null if no such entry exists
Parameters:
  name - the name of the entry in the jar file java.util.jar.JarEntry



getInputStream
public InputStream getInputStream(ZipEntry ze) throws IOException(Code)
Return an InputStream for reading the decompressed contents of ze.
Parameters:
  ze - the ZipEntry to read from java.io.InputStream
exception:
  java.io.IOException - If an error occured while creating the InputStream.



getJarEntry
public JarEntry getJarEntry(String name)(Code)
Return the JarEntry specified by name or null if no such entry exists.
Parameters:
  name - the name of the entry in the jar file java.util.jar.JarEntry



getManifest
public Manifest getManifest() throws IOException(Code)
Returns the Manifest object associated with this JarFile or null if no manifest entry exists. java.util.jar.Manifest



Fields inherited from java.util.zip.ZipFile
final public static int OPEN_DELETE(Code)(Java Doc)
final public static int OPEN_READ(Code)(Java Doc)

Methods inherited from java.util.zip.ZipFile
public synchronized void close() throws IOException(Code)(Java Doc)
public Enumeration<? extends ZipEntry> entries()(Code)(Java Doc)
protected void finalize() throws IOException(Code)(Java Doc)
public ZipEntry getEntry(String entryName)(Code)(Java Doc)
public InputStream getInputStream(ZipEntry entry) throws IOException(Code)(Java Doc)
public String getName()(Code)(Java Doc)
public int size()(Code)(Java Doc)

Methods inherited from java.lang.Object
protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object object)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final public Class<? extends Object> getClass()(Code)(Java Doc)
public int hashCode()(Code)(Java Doc)
final public void notify()(Code)(Java Doc)
final public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final public void wait(long millis, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait(long millis) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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