Package uk.gov.gchq.gaffer.store.serialiser

Class PropertiesSerialiser<T>

java.lang.Object

uk.gov.gchq.gaffer.store.serialiser.PropertiesSerialiser<T>

All Implemented Interfaces:

Serializable, Serialiser<T,byte[]>, ToBytesSerialiser<T>

Direct Known Subclasses:

EdgeSerialiser, ElementSerialiser, EntitySerialiser, GroupedPropertiesSerialiser

public abstract class PropertiesSerialiser<T>
extends Object
implements ToBytesSerialiser<T>

Serialiser to serialise and deserialise objects containing Properties in a byte array representation.

See Also:

Serialized Form

Field Summary

Fields inherited from interface uk.gov.gchq.gaffer.serialisation.ToBytesSerialiser

EMPTY_BYTES

Method Summary

Modifier and Type	Method	Description
boolean	canHandle(Class clazz)	Check whether the serialiser can serialise a particular class.
boolean	equals(Object obj)
int	hashCode()
boolean	preservesObjectOrdering()	Indicates whether the serialisation process preserves the ordering of the T, i.e.
void	updateSchema(Schema schema)

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface uk.gov.gchq.gaffer.serialisation.Serialiser

isConsistent

Methods inherited from interface uk.gov.gchq.gaffer.serialisation.ToBytesSerialiser

deserialise, deserialise, deserialiseEmpty, serialise, serialiseNull

Method Detail

updateSchema

public void updateSchema(Schema schema)

canHandle

public boolean canHandle(Class clazz)

Description copied from interface: Serialiser

Check whether the serialiser can serialise a particular class.

//Warning: Due to erasure you may get false positives. e.g.

 
 Set<Foo> set = Sets.newHashSet();
 boolean b = new Serialiser<Set<Bar>, byte[]>().canHandle(set.getClass());
 b will incorrectly be true because of type erasure between Set<Foo> Set<Bar>
 
 

Specified by:

canHandle in interface Serialiser<T,byte[]>

Parameters:

clazz - the object class to serialise

Returns:

boolean true if it can be handled

preservesObjectOrdering

public boolean preservesObjectOrdering()

Description copied from interface: ToBytesSerialiser

Indicates whether the serialisation process preserves the ordering of the T, i.e. if x and y are objects of class T, and x is less than y, then this method should return true if the serialised form of x is guaranteed to be less than the serialised form of y (using the standard ordering of byte arrays). If T is not Comparable then this test makes no sense and false should be returned.

Specified by:

preservesObjectOrdering in interface Serialiser<T,byte[]>

Specified by:

preservesObjectOrdering in interface ToBytesSerialiser<T>

Returns:

true if the serialisation will preserve the order of the T, otherwise false.

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object