Package org.apache.hadoop.hbase.filter

Class BinaryComponentComparator

java.lang.Object

org.apache.hadoop.hbase.filter.ByteArrayComparable

org.apache.hadoop.hbase.filter.BinaryComponentComparator

All Implemented Interfaces:

Comparable<byte[]>

@Public
public class BinaryComponentComparator
extends ByteArrayComparable

A comparator which compares against a specified byte array, but only compares specific portion of the byte array. For the rest it is similar to BinaryComparator.

Field Summary

Fields

Modifier and Type	Field	Description
private int	offset

Fields inherited from class org.apache.hadoop.hbase.filter.ByteArrayComparable

value

Constructor Summary

Constructors

Constructor	Description
BinaryComponentComparator(byte[] value, int offset)	Constructor

Method Summary

Modifier and Type	Method	Description
(package private) boolean	areSerializedFieldsEqual(ByteArrayComparable other)	Returns true if and only if the fields of the comparator that are serialized are equal to the corresponding fields in other.
int	compareTo(byte[] value)
int	compareTo(byte[] value, int offset, int length)	Special compareTo method for subclasses, to avoid copying byte[] unnecessarily.
boolean	equals(Object other)
int	hashCode()
static BinaryComponentComparator	parseFrom(byte[] pbBytes)	Parse a serialized representation of BinaryComponentComparator
byte[]	toByteArray()	Returns The comparator serialized using pb

Methods inherited from class org.apache.hadoop.hbase.filter.ByteArrayComparable

compareTo, getValue

Methods inherited from class java.lang.Object

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

Field Details

offset

private int offset

Constructor Details

BinaryComponentComparator

public BinaryComponentComparator(byte[] value,
 int offset)

Constructor

Parameters:

value - value of the component

offset - offset of the component from begining

Method Details

compareTo

public int compareTo(byte[] value)

Specified by:

compareTo in interface Comparable<byte[]>

Overrides:

compareTo in class ByteArrayComparable

compareTo

public int compareTo(byte[] value,
 int offset,
 int length)

Description copied from class: ByteArrayComparable

Special compareTo method for subclasses, to avoid copying byte[] unnecessarily.

Specified by:

compareTo in class ByteArrayComparable

Parameters:

value - byte[] to compare

offset - offset into value

length - number of bytes to compare

Returns:

a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toByteArray

public byte[] toByteArray()

Returns The comparator serialized using pb

Specified by:

toByteArray in class ByteArrayComparable

parseFrom

public static BinaryComponentComparator parseFrom(byte[] pbBytes)
                                           throws DeserializationException

Parse a serialized representation of BinaryComponentComparator

Parameters:

pbBytes - A pb serialized BinaryComponentComparator instance

Returns:

An instance of BinaryComponentComparator made from bytes

Throws:

DeserializationException - if an error occurred

See Also:

• toByteArray()

areSerializedFieldsEqual

boolean areSerializedFieldsEqual(ByteArrayComparable other)

Returns true if and only if the fields of the comparator that are serialized are equal to the corresponding fields in other. Used for testing.

Overrides:

areSerializedFieldsEqual in class ByteArrayComparable