gzz.slices
Class SliceVersion

java.lang.Object
  |
  +--gzz.slices.SliceVersion

All Implemented Interfaces:

java.io.Serializable, Version

public class SliceVersion

extends java.lang.Object

implements java.io.Serializable, Version

A version of a slice. (Note that as Gzz currently doesn't support multiple slices, you can think of this as "a version of a space.") This is immutable and can be serialized for saving.

See Also:

SliceVersion.Diff, Serialized Form

Nested Class Summary

static class	SliceVersion.Conn A serializable representation of a single ZZ connection.
static class	SliceVersion.Diff A diff between two SliceVersions.

Nested classes inherited from class gzz.util.Version

Field Summary

java.util.Set	connections The connections in this version.
java.util.Map	contents The cell contents in this version.
static boolean	dbg
static SliceVersion	EMPTY_VERSION
static java.lang.String	rcsid

Constructor Summary

SliceVersion(java.util.Set connections, java.util.Map contents)
Create a new SliceVersion given the connections and cell contents in that version.

Method Summary

boolean	equals(java.lang.Object o)
Version.Diff	getDiffFrom(Version previous) Return the diff from a previous to this version.
int	hashCode()
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

rcsid

public static final java.lang.String rcsid

See Also:

Constant Field Values

dbg

public static boolean dbg

EMPTY_VERSION

public static final SliceVersion EMPTY_VERSION

connections

public final java.util.Set connections

The connections in this version. Contains Conn objects.

contents

public final java.util.Map contents

The cell contents in this version. Maps String cell ids to arbitrary serializable objects representing the cell content.

Constructor Detail

SliceVersion

public SliceVersion(java.util.Set connections,
                    java.util.Map contents)
             throws gzz.errors.ZZAlreadyConnectedException

Create a new SliceVersion given the connections and cell contents in that version. This checks the connections for consistency, because we want to be sure we don't save bad data to the disk.

Throws:

gzz.errors.ZZAlreadyConnectedException - if there is more than one Conn object for the same cell, dimension and direction.

Method Detail

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

getDiffFrom

public Version.Diff getDiffFrom(Version previous)

Description copied from interface: Version

Return the diff from a previous to this version. previous must be a Version of the same kind as this one.

Specified by:

getDiffFrom in interface Version

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object