com.hazelcast.map.impl.record

Class Records

java.lang.Object

com.hazelcast.map.impl.record.Records

public final class Records
extends Object

Contains various factory & helper methods for a Record object.

Method Summary

Methods

Modifier and Type	Method and Description
static void	applyRecordInfo(Record record, RecordInfo replicationInfo)
static RecordInfo	buildRecordInfo(Record record)
static Object	getCachedValue(Record record) Get current cached value from the record.
static Object	getValueOrCachedValue(Record record, SerializationService serializationService) Return cached value where appropriate, otherwise return the actual value.

Methods inherited from class java.lang.Object

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

Method Detail

applyRecordInfo

public static void applyRecordInfo(Record record,
                   RecordInfo replicationInfo)

buildRecordInfo

public static RecordInfo buildRecordInfo(Record record)

getCachedValue

public static Object getCachedValue(Record record)

Get current cached value from the record. This method protects you against accidental exposure of cached value mutex into rest of the code. Use it instead of raw Record.getCachedValueUnsafe() See getValueOrCachedValue(Record, SerializationService) for details.

Parameters:

record -

Returns:

getValueOrCachedValue

public static Object getValueOrCachedValue(Record record,
                           SerializationService serializationService)

Return cached value where appropriate, otherwise return the actual value. Value caching makes sense when:

• Portable serialization is not used
• OBJECT InMemoryFormat is not used

If Record does not contain cached value and is found appropriate (see above) then new cache value is created by de-serializing the Record.getValue() The newly de-deserialized value may not be stored into the Record cache when the record has been modified while the method was running. WARNING: This method may temporarily set an arbitrary object into the Record cache - this object acts as mutex. The mutex should never be returned to the outside world. Use getCachedValue(Record) instead of raw Record.getCachedValueUnsafe() to protect from accidental mutex exposure to the user-code.

Parameters:

record -

serializationService -

Returns: