org.mapdb.elsa

Class ElsaUtil

java.lang.Object

org.mapdb.elsa.ElsaUtil

public final class ElsaUtil
extends Object

Utilities for Elsa Serialization

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ElsaUtil.DataInputToStream Wraps DataInput into InputStream

Method Summary

Modifier and Type	Method and Description
static <E> E	clone(ElsaSerializerPojo serializer, E data)
static Class[]	findClasses(Iterable e) Serializes content of iterable to find unknown classes.
static void	packInt(DataOutput out, int value) Pack int into an output stream.
static void	packIntBigger(DataOutput out, int value) Pack int into an output stream.
static void	packLong(DataOutput out, long value) Pack long into output.
static void	packLong(OutputStream out, long value) Pack long into output.
static int	unpackInt(DataInput is) Unpack int value from the input stream.
static int	unpackInt(InputStream in) Unpack int value from the input stream.
static long	unpackLong(DataInput in) Unpack long value from the input stream.
static long	unpackLong(InputStream in) Unpack long value from the input stream.

Methods inherited from class java.lang.Object

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

Method Detail

clone

public static <E> E clone(ElsaSerializerPojo serializer,
                          E data)
                   throws IOException

Throws:

IOException

unpackInt

public static int unpackInt(DataInput is)
                     throws IOException

Unpack int value from the input stream.

Parameters:

is - The input stream.

Returns:

The long value.

Throws:

IOException - in case of IO error

unpackLong

public static long unpackLong(DataInput in)
                       throws IOException

Unpack long value from the input stream.

Parameters:

in - The input stream.

Returns:

The long value.

Throws:

IOException - in case of IO error

unpackInt

public static int unpackInt(InputStream in)
                     throws IOException

Unpack int value from the input stream.

Parameters:

in - The input stream.

Returns:

The long value.

Throws:

IOException - in case of IO error

unpackLong

public static long unpackLong(InputStream in)
                       throws IOException

Unpack long value from the input stream.

Parameters:

in - The input stream.

Returns:

The long value.

Throws:

IOException - in case of IO error

packLong

public static void packLong(DataOutput out,
                            long value)
                     throws IOException

Pack long into output. It will occupy 1-10 bytes depending on value (lower values occupy smaller space)

Parameters:

out - DataOutput to put value into

value - to be serialized, must be non-negative

Throws:

IOException - in case of IO error

packLong

public static void packLong(OutputStream out,
                            long value)
                     throws IOException

Pack long into output. It will occupy 1-10 bytes depending on value (lower values occupy smaller space)

Parameters:

out - OutputStream to put value into

value - to be serialized, must be non-negative

Throws:

IOException - in case of IO error

packInt

public static void packInt(DataOutput out,
                           int value)
                    throws IOException

Pack int into an output stream. It will occupy 1-5 bytes depending on value (lower values occupy smaller space)

Parameters:

out - DataOutput to put value into

value - to be serialized, must be non-negative

Throws:

IOException - in case of IO error

packIntBigger

public static void packIntBigger(DataOutput out,
                                 int value)
                          throws IOException

Pack int into an output stream. It will occupy 1-5 bytes depending on value (lower values occupy smaller space) This method is same as packInt(DataOutput, int), but is optimized for values larger than 127. Usually it is recids.

Parameters:

out - String to put value into

value - to be serialized, must be non-negative

Throws:

IOException - in case of IO error

findClasses

public static Class[] findClasses(Iterable e)

Serializes content of iterable to find unknown classes. That can be passed to ElsaMaker.registerClasses(Class[]) }

Parameters:

e -

Returns: