edu.rit.clu.antimatter
Class AntiprotonFile.Writer

java.lang.Object
  edu.rit.clu.antimatter.AntiprotonFile.Writer

Enclosing class:

AntiprotonFile

public class AntiprotonFile.Writer
extends Object

Class AntiprotonFile.Writer provides an object with which to write an AntiprotonFile to an output stream.

When a writer is created, the antiproton file's attributes are written to the output stream. Each time the writeSnapshot() method is called, one snapshot is written to the output stream. When finished, call the close() method.

Note: Class AntiprotonFile.Writer is not multiple thread safe.

Method Summary

void	close() Close the output stream.
void	writeSnapshot(Vector2D[] p, int off, Vector2D mv) Write a snapshot to the output stream.

Methods inherited from class java.lang.Object

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

Method Detail

writeSnapshot

public void writeSnapshot(Vector2D[] p,
                          int off,
                          Vector2D mv)
                   throws IOException

Write a snapshot to the output stream.

The M antiproton positions starting at index off in the array p are written. Note that, depending on how the antiproton position array p has been allocated, the argument off need not be the same as the attribute L. However, the element p[off] must contain the position of antiproton L, the element p[off+1] must contain the position of antiproton L+1, and so on.

The given total momentum is also written; this must be the total momentum of the antiprotons L .. L+M-1.

Parameters:

p - Array of antiproton positions.

off - Index of first array element to write.

mv - Total momentum.

Throws:

IllegalStateException - (unchecked exception) Thrown if snaps snapshots have already been written.

NullPointerException - (unchecked exception) Thrown if p is null. Thrown if mv is null.

IndexOutOfBoundsException - (unchecked exception) Thrown if off < 0. Thrown if off+M > p.length.

IOException - Thrown if an I/O error occurred.

close

public void close()
           throws IOException

Close the output stream.

Throws:

IOException - Thrown if an I/O error occurred.