oracle.kv

Class Value

java.lang.Object

oracle.kv.Value

All Implemented Interfaces:

oracle.kv.impl.util.FastExternalizable

public class Value
extends Object
implements oracle.kv.impl.util.FastExternalizable

The Value in a Key/Value store.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Value.Format Identifies the format of a value.

Field Summary

Fields

Modifier and Type	Field and Description
static Value	EMPTY_VALUE An instance that represents an empty value for key-only records.

Method Summary

Methods

Modifier and Type	Method and Description
static Value	createValue(byte[] val) Creates a Value from a value byte array.
boolean	equals(Object other)
static Value	fromByteArray(byte[] bytes) Deserializes the given bytes that were returned earlier by toByteArray() and returns the resulting Value.
Value.Format	getFormat() Returns the value's format.
byte[]	getValue() Returns the value byte array.
int	hashCode()
byte[]	toByteArray() Returns this Value as a serialized byte array, such that fromByteArray(byte[]) may be used to reconstitute the Value.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface oracle.kv.impl.util.FastExternalizable

writeFastExternal

Field Detail

EMPTY_VALUE

public static final Value EMPTY_VALUE

An instance that represents an empty value for key-only records.

Method Detail

toByteArray

public byte[] toByteArray()

Returns this Value as a serialized byte array, such that fromByteArray(byte[]) may be used to reconstitute the Value.

Note that this method does not always return an array equal to the getValue() array. The serialized representation of a Value may contain an extra byte identifying the format.

fromByteArray

public static Value fromByteArray(byte[] bytes)

Deserializes the given bytes that were returned earlier by toByteArray() and returns the resulting Value.

Note that an array equal to the getValue() array may not be passed to this method. To create a Value from only the value array, call createValue(byte[]) instead.

createValue

public static Value createValue(byte[] val)

Creates a Value from a value byte array. The format of the returned value is Value.Format.NONE. This method may not be used to create Avro values; for that, use an AvroBinding instead.

getValue

public byte[] getValue()

Returns the value byte array.

getFormat

public Value.Format getFormat()

Returns the value's format.

Since:

2.0

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object