edu.isi.pegasus.planner.invocation
Class Descriptor

java.lang.Object
  org.griphyn.vdl.Chimera
      edu.isi.pegasus.planner.invocation.Invocation
          edu.isi.pegasus.planner.invocation.File
              edu.isi.pegasus.planner.invocation.Descriptor

All Implemented Interfaces:

HasDescriptor, HasText, Serializable

public class Descriptor
extends File
implements HasDescriptor

This class is the container for a file descriptor object. A file descriptor object contains just the descriptor number.

Version:

$Revision: 2587 $

Author:

Jens-S. Vöckler, Yong Zhao

See Also:

Serialized Form

Field Summary

private int

m_descriptor Descriptor of the file.

Fields inherited from class edu.isi.pegasus.planner.invocation.File

m_hexbyte

Constructor Summary

Descriptor()
Default c'tor: Construct a hollow shell and allow further information to be added later.

Descriptor(int descriptor)
Constructs a file descriptor.

Method Summary

int	getDescriptor() Accessor
void	setDescriptor(int descriptor) Accessor.
void	toXML(Writer stream, String indent, String namespace) Dump the state of the current element as XML output.

Methods inherited from class edu.isi.pegasus.planner.invocation.File

appendValue, getValue, setValue, toString

Methods inherited from class org.griphyn.vdl.Chimera

escape, quote, toString, toXML, toXML, writeAttribute

Methods inherited from class java.lang.Object

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

Field Detail

m_descriptor

private int m_descriptor

Descriptor of the file.

Constructor Detail

Descriptor

public Descriptor()

Default c'tor: Construct a hollow shell and allow further information to be added later.

Descriptor

public Descriptor(int descriptor)

Constructs a file descriptor.

Parameters:

descriptor - is a valid file descriptor number.

Method Detail

getDescriptor

public int getDescriptor()

Accessor

Specified by:

getDescriptor in interface HasDescriptor

Returns:

the descriptor number, or -1 for none.

See Also:

setDescriptor(int)

setDescriptor

public void setDescriptor(int descriptor)

Accessor.

Specified by:

setDescriptor in interface HasDescriptor

Parameters:

descriptor -

See Also:

getDescriptor()

toXML

public void toXML(Writer stream,
                  String indent,
                  String namespace)
           throws IOException

Dump the state of the current element as XML output. This function traverses all sibling classes as necessary, and converts the data into pretty-printed XML output. The stream interface should be able to handle large output efficiently.

Specified by:

toXML in class org.griphyn.vdl.Chimera

Parameters:

stream - is a stream opened and ready for writing. This can also be a string stream for efficient output.

indent - is a String of spaces used for pretty printing. The initial amount of spaces should be an empty string. The parameter is used internally for the recursive traversal. If a null value is specified, no indentation nor linefeeds will be generated.

namespace - is the XML schema namespace prefix. If neither empty nor null, each element will be prefixed with this prefix, and the root element will map the XML namespace.

Throws:

IOException - if something fishy happens to the stream.

See Also:

BufferedWriter