Package org.apache.accumulo.core.client.lexicoder

Class ListLexicoder<LT>

java.lang.Object

org.apache.accumulo.core.client.lexicoder.AbstractEncoder<T>

org.apache.accumulo.core.client.lexicoder.AbstractLexicoder<List<LT>>

org.apache.accumulo.core.client.lexicoder.ListLexicoder<LT>

All Implemented Interfaces:

Encoder<List<LT>>, Lexicoder<List<LT>>

public class ListLexicoder<LT>
extends AbstractLexicoder<List<LT>>

A lexicoder to encode/decode a Java List to/from a byte array where the concatenation of each encoded element sorts lexicographically. Note: Empty lists are not supported. See SequenceLexicoder for an encoding that supports empty lists.

Since:

1.6.0

Constructor Summary

Constructors

Constructor	Description
ListLexicoder(Lexicoder<LT> lexicoder)

Method Summary

Modifier and Type	Method	Description
List<LT>	decode(byte[] b)
protected List<LT>	decodeUnchecked(byte[] b, int offset, int len)	Decodes a byte array without checking if the offset and len exceed the bounds of the actual array.
byte[]	encode(List<LT> v)

Methods inherited from class org.apache.accumulo.core.client.lexicoder.AbstractEncoder

decode

Methods inherited from class java.lang.Object

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

Constructor Details

ListLexicoder

public ListLexicoder(Lexicoder<LT> lexicoder)

Method Details

encode

public byte[] encode(List<LT> v)

Returns:

a byte array containing the concatenation of each element in the list encoded.

decode

public List<LT> decode(byte[] b)

Specified by:

decode in interface Encoder<LT>

Overrides:

decode in class AbstractEncoder<List<LT>>

decodeUnchecked

protected List<LT> decodeUnchecked(byte[] b,
 int offset,
 int len)

Description copied from class: AbstractEncoder

Decodes a byte array without checking if the offset and len exceed the bounds of the actual array.

Specified by:

decodeUnchecked in class AbstractEncoder<List<LT>>