hep.io.root
Class RootFileReader

java.lang.Object
  |
  +--hep.io.root.RootFileReader

All Implemented Interfaces:

RootObject, TDirectory, TFile, TNamed, TObject

public class RootFileReader

extends Object

implements TFile

A class for reading root files.

Version:

$Id: RootFileReader.java,v 1.13 2002/06/12 23:15:13 duns Exp $

Author:

Tony Johnson (tonyj@slac.stanford.edu)

Field Summary

Fields inherited from interface hep.io.root.interfaces.TNamed

rootIOVersion

Constructor Summary

RootFileReader(File file)
Open a root file for reading The DefaultClassFactory will be used for creating classes

RootFileReader(File file, RootClassFactory factory)
Open a root file for reading

RootFileReader(String file)
Open a root file for reading.

Method Summary

void	close() Close the file.
Object	get(String name) Get the object associated with a particular key
ClassLoader	getClassLoader()
RootClassFactory	getFactory()
TKey	getKey(int index)
TKey	getKey(String name) Gets the key for a specific name.
TKey	getKey(String name, int cycle) Gets the key for a specific name and cycle
TKey	getKeyForTitle(String name)
String	getName() object identifier
String	getTitle() object title
Object	getValue(String member) Returns the value of a named member variable.
int	nKeys()
RootClass	rootClass() Returns the class name of this object
void	setClassLoader(ClassLoader loader) Set the classloader to use for checking for interfaces and loading proxies.
List	streamerInfo() Get the StreamerInfo
TKey	streamerInfoKey()

Methods inherited from class java.lang.Object

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

Constructor Detail

RootFileReader

public RootFileReader(String file)
               throws IOException

Open a root file for reading. The DefaultClassFactory will be used for creating classes

Parameters:

file - The name of the file to open

See Also:

DefaultClassFactory

RootFileReader

public RootFileReader(File file)
               throws IOException

Open a root file for reading The DefaultClassFactory will be used for creating classes

Parameters:

file - The file to open

See Also:

DefaultClassFactory

RootFileReader

public RootFileReader(File file,
                      RootClassFactory factory)
               throws IOException

Open a root file for reading

Parameters:

file - The file to open

factory - The factory to use for creating root classes

Method Detail

close

public void close()
           throws IOException

Description copied from interface: TFile

Close the file.

Specified by:

close in interface TFile

IOException

getFactory

public RootClassFactory getFactory()

getName

public String getName()

Description copied from interface: TNamed

object identifier

Specified by:

getName in interface TNamed

getTitle

public String getTitle()

Description copied from interface: TNamed

object title

Specified by:

getTitle in interface TNamed

nKeys

public int nKeys()

Specified by:

nKeys in interface TDirectory

getKey

public TKey getKey(int index)

Specified by:

getKey in interface TDirectory

getKeyForTitle

public TKey getKeyForTitle(String name)

Specified by:

getKeyForTitle in interface TDirectory

getKey

public TKey getKey(String name)

Description copied from interface: TDirectory

Gets the key for a specific name. Assumes the highest cycle.

Specified by:

getKey in interface TDirectory

getKey

public TKey getKey(String name,
                   int cycle)

Description copied from interface: TDirectory

Gets the key for a specific name and cycle

Specified by:

getKey in interface TDirectory

streamerInfoKey

public TKey streamerInfoKey()

Specified by:

streamerInfoKey in interface TFile

rootClass

public RootClass rootClass()

Description copied from interface: RootObject

Returns the class name of this object

Specified by:

rootClass in interface RootObject

getValue

public Object getValue(String member)

Description copied from interface: RootObject

Returns the value of a named member variable. Searches in this class or any of its super classes. The value returned will be either

1. A RootObject
2. A java.lang.reflect.Array
3. A Java Object representing a primitive type (int, double etc).

Specified by:

getValue in interface RootObject

See Also:

RootObject, Array

streamerInfo

public List streamerInfo()
                  throws IOException

Get the StreamerInfo

Specified by:

streamerInfo in interface TFile

IOException

get

public Object get(String name)
           throws IOException

Get the object associated with a particular key

IOException

setClassLoader

public void setClassLoader(ClassLoader loader)

Set the classloader to use for checking for interfaces and loading proxies.

getClassLoader

public ClassLoader getClassLoader()