org.apache.accumulo.core.client.lexicoder

Class AbstractEncoder<T>

java.lang.Object

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

All Implemented Interfaces:

Encoder<T>, org.apache.accumulo.core.iterators.TypedValueCombiner.Encoder<T>

Direct Known Subclasses:

org.apache.accumulo.core.client.lexicoder.impl.AbstractLexicoder

public abstract class AbstractEncoder<T>
extends Object
implements Encoder<T>

AbstractEncoder is an Encoder that implements all of Encoder's methods validating the input, but has those methods defer logic to to a new method, decodeUnchecked(byte[], int, int).

Since:

1.7.0

Constructor Summary

Constructors

Constructor and Description
AbstractEncoder()

Method Summary

Modifier and Type	Method and Description
T	decode(byte[] b)
T	decode(byte[] b, int offset, int len) Checks if the byte array is null, or if parameters exceed the bounds of the byte array, then calls decodeUnchecked(byte[], int, int).
protected abstract T	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.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.accumulo.core.iterators.TypedValueCombiner.Encoder

encode

Constructor Detail

AbstractEncoder

public AbstractEncoder()

Method Detail

decodeUnchecked

protected abstract T decodeUnchecked(byte[] b,
                                     int offset,
                                     int len)
                              throws org.apache.accumulo.core.iterators.ValueFormatException

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

Throws:

org.apache.accumulo.core.iterators.ValueFormatException

decode

public T decode(byte[] b)

Specified by:

decode in interface org.apache.accumulo.core.iterators.TypedValueCombiner.Encoder<T>

decode

public T decode(byte[] b,
                int offset,
                int len)

Checks if the byte array is null, or if parameters exceed the bounds of the byte array, then calls decodeUnchecked(byte[], int, int).

Throws:

NullPointerException - if b is null

IllegalArgumentException - if offset + len exceeds the length of b