com.hazelcast.config

Class MergePolicyConfig

java.lang.Object

com.hazelcast.config.MergePolicyConfig

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable

public class MergePolicyConfig
extends Object
implements IdentifiedDataSerializable

Configuration for SplitBrainMergePolicy.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_BATCH_SIZE Default batch size.
static String	DEFAULT_MERGE_POLICY Default merge policy.

Constructor Summary

Constructors

Constructor and Description
MergePolicyConfig()
MergePolicyConfig(MergePolicyConfig mergePolicyConfig)
MergePolicyConfig(String policy, int batchSize)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
MergePolicyConfig	getAsReadOnly() Deprecated. this method will be removed in 4.0; it is meant for internal usage only
int	getBatchSize() Returns the batch size, which will be used to determine the number of entries to be sent in a merge operation.
int	getFactoryId() Returns DataSerializableFactory factory ID for this class.
int	getId() Returns type identifier for this class.
String	getPolicy() Returns the classname of the SplitBrainMergePolicy.
int	hashCode()
void	readData(ObjectDataInput in) Reads fields from the input stream
MergePolicyConfig	setBatchSize(int batchSize) Sets the batch size, which will be used to determine the number of entries to be sent in a merge operation.
MergePolicyConfig	setPolicy(String policy) Sets the classname of your SplitBrainMergePolicy.
String	toString()
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

DEFAULT_MERGE_POLICY

public static final String DEFAULT_MERGE_POLICY

Default merge policy.

DEFAULT_BATCH_SIZE

public static final int DEFAULT_BATCH_SIZE

Default batch size.

See Also:

Constant Field Values

Constructor Detail

MergePolicyConfig

public MergePolicyConfig()

MergePolicyConfig

public MergePolicyConfig(String policy,
                         int batchSize)

MergePolicyConfig

public MergePolicyConfig(MergePolicyConfig mergePolicyConfig)

Method Detail

getPolicy

public String getPolicy()

Returns the classname of the SplitBrainMergePolicy.

Returns:

the classname of the merge policy

setPolicy

public MergePolicyConfig setPolicy(String policy)

Sets the classname of your SplitBrainMergePolicy.

For the out-of-the-box merge policies the simple classname is sufficient, e.g. PutIfAbsentMergePolicy. But also the fully qualified classname is fine, e.g. com.hazelcast.spi.merge.PutIfAbsentMergePolicy. For a custom merge policy the fully qualified classname is needed.

Must be a non-empty string. The default value is PutIfAbsentMergePolicy.

Parameters:

policy - the classname of the merge policy

Returns:

this MergePolicyConfig instance

getBatchSize

public int getBatchSize()

Returns the batch size, which will be used to determine the number of entries to be sent in a merge operation.

Returns:

the batch size

setBatchSize

public MergePolicyConfig setBatchSize(int batchSize)

Sets the batch size, which will be used to determine the number of entries to be sent in a merge operation.

Must be a positive number. Set to 1 to disable batching. The default value is 100.

Parameters:

batchSize - the batch size

Returns:

this MergePolicyConfig instance

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

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.

equals

public final boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public final int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

getAsReadOnly

public MergePolicyConfig getAsReadOnly()

Deprecated. this method will be removed in 4.0; it is meant for internal usage only

Gets immutable version of this configuration.

Returns:

immutable version of this configuration