com.hp.util.persistence.cassandra.entitymgr.column

Class EnumColumn.EnumColumnDecoder<K extends Serializable & Comparable<K>,E extends Enum<E>>

java.lang.Object

com.hp.util.persistence.cassandra.entitymgr.column.EnumColumn.EnumColumnDecoder<K,E>

Type Parameters:

K - type of the column key or name

E - type of the enumeration

All Implemented Interfaces:

Decoder<Column<K,E>,com.netflix.astyanax.model.Column<K>>, ColumnDecoder<K,E>

Enclosing class:

EnumColumn<K extends Serializable & Comparable<K>,E extends Enum<E>>

public static final class EnumColumn.EnumColumnDecoder<K extends Serializable & Comparable<K>,E extends Enum<E>>
extends Object
implements ColumnDecoder<K,E>

Enum column decoder.

Constructor Summary

Constructors

Constructor and Description
EnumColumnDecoder(Class<E> enumClass) Creates an enumeration decoder.

Method Summary

Modifier and Type	Method and Description
Column<K,E>	decode(com.netflix.astyanax.model.Column<K> code) The enum is encoded to String and decoded from String using the constant name.
static <E extends Enum<E>> E	decode(String code, Class<E> enumClass) Decodes an enumeration.
static String	encode(Enum<?> value) Encodes an enumeration.

Methods inherited from class java.lang.Object

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

Constructor Detail

EnumColumnDecoder

public EnumColumnDecoder(Class<E> enumClass)

Creates an enumeration decoder.

Parameters:

enumClass - enumeration class

Method Detail

decode

public Column<K,E> decode(com.netflix.astyanax.model.Column<K> code)
                   throws IllegalArgumentException

The enum is encoded to String and decoded from String using the constant name.

Specified by:

decode in interface Decoder<Column<K extends Serializable & Comparable<K>,E extends Enum<E>>,com.netflix.astyanax.model.Column<K extends Serializable & Comparable<K>>>

Parameters:

code - com.netflix.astyanax.model.Column

Returns:

Column

Throws:

IllegalArgumentException

encode

public static String encode(Enum<?> value)

Encodes an enumeration.

Parameters:

value - enumeration constant

Returns:

the code for the enumeration

decode

public static <E extends Enum<E>> E decode(String code,
                                           Class<E> enumClass)

Decodes an enumeration.

Parameters:

code - code

enumClass - enumeration class

Returns:

the enumeration value