com.hazelcast.query

Class TruePredicate<K,V>

java.lang.Object

com.hazelcast.query.TruePredicate<K,V>

Type Parameters:

K - map key type

V - map value type

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable, Predicate<K,V>, Serializable

public class TruePredicate<K,V>
extends Object
implements IdentifiedDataSerializable, Predicate<K,V>

A Predicate which always returns true.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static TruePredicate	INSTANCE An instance of the TruePredicate.

Constructor Summary

Constructors

Constructor and Description
TruePredicate()

Method Summary

Modifier and Type	Method and Description
boolean	apply(Map.Entry mapEntry) Applies this predicate to the given map entry.
boolean	equals(Object o)
int	getFactoryId() Returns DataSerializableFactory factory ID for this class.
int	getId() Returns type identifier for this class.
int	hashCode()
void	readData(ObjectDataInput in) Reads fields from the input stream
String	toString()
static <K,V> TruePredicate<K,V>	truePredicate()
void	writeData(ObjectDataOutput out) Writes object fields to output stream

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final TruePredicate INSTANCE

An instance of the TruePredicate.

Constructor Detail

TruePredicate

public TruePredicate()

Method Detail

truePredicate

public static <K,V> TruePredicate<K,V> truePredicate()

writeData

public void writeData(ObjectDataOutput out)
               throws IOException

Description copied from interface: DataSerializable

Writes object fields to output stream

Specified by:

writeData in interface DataSerializable

Parameters:

out - output

Throws:

IOException - if an I/O error occurs. In particular, an IOException may be thrown if the output stream has been closed.

readData

public void readData(ObjectDataInput in)
              throws IOException

Description copied from interface: DataSerializable

Reads fields from the input stream

Specified by:

readData in interface DataSerializable

Parameters:

in - input

Throws:

IOException - if an I/O error occurs. In particular, an IOException may be thrown if the input stream has been closed.

apply

public boolean apply(Map.Entry mapEntry)

Description copied from interface: Predicate

Applies this predicate to the given map entry.

Implementations must be thread-safe, since this method may be called by multiple threads concurrently.

Specified by:

apply in interface Predicate<K,V>

Parameters:

mapEntry - the map entry to apply this predicate to.

Returns:

true if the given map entry matches this predicate, false otherwise.

toString

public String toString()

Overrides:

toString in class Object

getFactoryId

public int getFactoryId()

Description copied from interface: IdentifiedDataSerializable

Returns DataSerializableFactory factory ID for this class.

Specified by:

getFactoryId in interface IdentifiedDataSerializable

Returns:

factory ID

getId

public int getId()

Description copied from interface: IdentifiedDataSerializable

Returns type identifier for this class. It should be unique per DataSerializableFactory.

Specified by:

getId in interface IdentifiedDataSerializable

Returns:

type ID

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object