org.openzen.zengarden.delta

Class ArrayDeltaBuilder<A>

java.lang.Object

org.openzen.zengarden.delta.ArrayDeltaBuilder<A>

Type Parameters:

A - array type

public class ArrayDeltaBuilder<A>
extends java.lang.Object

Builds array diffs. Has an implementation for all primitive types.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ArrayDeltaBuilder.UpdateBuilder<A>

Field Summary

Fields

Modifier and Type	Field and Description
static ArrayDeltaBuilder<byte[]>	BYTE
static ArrayDeltaBuilder<double[]>	DOUBLE
static ArrayDeltaBuilder<float[]>	FLOAT
static ArrayDeltaBuilder<int[]>	INT
static ArrayDeltaBuilder<long[]>	LONG
static ArrayDeltaBuilder<short[]>	SHORT
static ArrayDeltaBuilder<java.lang.String[]>	STRING
static ArrayDeltaBuilder<int[]>	VARINT
static ArrayDeltaBuilder<long[]>	VARLONG
static ArrayDeltaBuilder<int[]>	VARUINT
static ArrayDeltaBuilder<long[]>	VARULONG

Constructor Summary

Constructors

Constructor and Description
ArrayDeltaBuilder(ArrayFunctions<A> functions) Constructs an array diff builder with the given array functions.

Method Summary

Modifier and Type	Method and Description
ArrayDelta<A>	diff(A original, A modified) Calculates a diff between the original and modified array.
ArrayDeltaBuilder.UpdateBuilder<A>	getBuilder() Constructs new update builder.
ArrayDelta<A>	read(DataInput input) Reads a diff from the given input stream.

Methods inherited from class java.lang.Object

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

Field Detail

BYTE

public static final ArrayDeltaBuilder<byte[]> BYTE

SHORT

public static final ArrayDeltaBuilder<short[]> SHORT

INT

public static final ArrayDeltaBuilder<int[]> INT

LONG

public static final ArrayDeltaBuilder<long[]> LONG

VARINT

public static final ArrayDeltaBuilder<int[]> VARINT

VARUINT

public static final ArrayDeltaBuilder<int[]> VARUINT

VARLONG

public static final ArrayDeltaBuilder<long[]> VARLONG

VARULONG

public static final ArrayDeltaBuilder<long[]> VARULONG

FLOAT

public static final ArrayDeltaBuilder<float[]> FLOAT

DOUBLE

public static final ArrayDeltaBuilder<double[]> DOUBLE

STRING

public static final ArrayDeltaBuilder<java.lang.String[]> STRING

Constructor Detail

ArrayDeltaBuilder

public ArrayDeltaBuilder(ArrayFunctions<A> functions)

Constructs an array diff builder with the given array functions.

Parameters:

functions - array functions

Method Detail

diff

public ArrayDelta<A> diff(A original,
                          A modified)

Calculates a diff between the original and modified array. Applying the resulting diff to the original array will result in the modified array. There is no guarantee that the given diff is minimal in size; but a best effort is made.

Parameters:

original - original (old) array

modified - modified (new) array

Returns:

diff between new and old array

getBuilder

public ArrayDeltaBuilder.UpdateBuilder<A> getBuilder()

Constructs new update builder. Can be used to construct custom update lists; in general, the diff method is recommended.

Returns:

update builder

read

public ArrayDelta<A> read(DataInput input)
                   throws java.io.IOException

Reads a diff from the given input stream.

Parameters:

input - input stream

Returns:

deserialized array diff

Throws:

java.io.IOException - if an I/O error occurs