org.apache.ignite.binary

Class BinaryFieldIdentityResolver

java.lang.Object

org.apache.ignite.binary.BinaryAbstractIdentityResolver

org.apache.ignite.binary.BinaryFieldIdentityResolver

All Implemented Interfaces:

BinaryIdentityResolver

public class BinaryFieldIdentityResolver
extends BinaryAbstractIdentityResolver

Identity resolver implementation which use the list of provided fields to calculate the hash code and to perform equality checks.

Standard polynomial function with multiplier 31 is used to calculate hash code. For example, for three fields [a, b, c]it would be hash = 31 * (31 * a + b) + c. Order of fields is important.

Constructor Summary

Constructors

Constructor and Description
BinaryFieldIdentityResolver() Default constructor.
BinaryFieldIdentityResolver(BinaryFieldIdentityResolver other) Copy constructor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals0(BinaryObject o1, BinaryObject o2) Internal equals routine.
String[]	getFieldNames()
int	hashCode0(BinaryObject obj) Internal hash code routine.
BinaryFieldIdentityResolver	setFieldNames(String... fieldNames) Set field names.
String	toString()

Methods inherited from class org.apache.ignite.binary.BinaryAbstractIdentityResolver

equals, hashCode

Methods inherited from class java.lang.Object

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

Constructor Detail

BinaryFieldIdentityResolver

public BinaryFieldIdentityResolver()

Default constructor.

BinaryFieldIdentityResolver

public BinaryFieldIdentityResolver(BinaryFieldIdentityResolver other)

Copy constructor.

Parameters:

other - Other instance.

Method Detail

getFieldNames

public String[] getFieldNames()

Returns:

Fields list to hash/compare objects based upon.

setFieldNames

public BinaryFieldIdentityResolver setFieldNames(String... fieldNames)

Set field names.

Parameters:

fieldNames - Field names.

Returns:

this for chaining.

hashCode0

public int hashCode0(BinaryObject obj)

Internal hash code routine.

Specified by:

hashCode0 in class BinaryAbstractIdentityResolver

Parameters:

obj - Object.

Returns:

Result.

equals0

public boolean equals0(BinaryObject o1,
              BinaryObject o2)

Internal equals routine.

Specified by:

equals0 in class BinaryAbstractIdentityResolver

Parameters:

o1 - First object.

o2 - Second object.

Returns:

Result.

toString

public String toString()

Overrides:

toString in class Object