QueueStoreConfig (Hazelcast Root 5.3.1 API)

java.lang.Object
- com.hazelcast.config.QueueStoreConfig

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable
```
public class QueueStoreConfig
extends Object
implements IdentifiedDataSerializable
```
Configuration for the QueueStore.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`DEFAULT_BULK_LOAD` The default size of batches in which the queue will be loaded from the queue store.
`static int`	`DEFAULT_MEMORY_LIMIT` The default number of queue item values to keep in memory.
`static String`	`STORE_BINARY` Binary: By default, Hazelcast stores the queue items in serialized form in memory.
`static String`	`STORE_BULK_LOAD` Bulk Load: When the queue is initialized, items are loaded from QueueStore in bulks.
`static String`	`STORE_MEMORY_LIMIT` Memory Limit: This is the number of items after which Hazelcast will store items only to datastore.

Constructor Summary

Constructors
Constructor and Description

QueueStoreConfig()

QueueStoreConfig(QueueStoreConfig config)

Constructors
Constructor and Description
`QueueStoreConfig()`
`QueueStoreConfig(QueueStoreConfig config)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`equals(Object o)`
`int`	`getClassId()` Returns type identifier for this class.
`String`	`getClassName()` Returns the class name of the queue store implementation to be used when instantiating the queue store.
`String`	`getFactoryClassName()` Returns the factory class name which will be used to instantiate the queue store.
`int`	`getFactoryId()` Returns DataSerializableFactory factory ID for this class.
`QueueStoreFactory`	`getFactoryImplementation()` Returns the queue store factory implementation which will be used to instantiate the queue store.
`Properties`	`getProperties()` Returns the properties to be used when instantiating the queue store.
`String`	`getProperty(String name)` Returns the property with the given `name` which is used when instantiating and interacting with the queue store.
`QueueStore`	`getStoreImplementation()` Returns the implementation of the queue store which will be used to store queue items.
`int`	`hashCode()`
`boolean`	`isEnabled()` Returns `true` if the queue store is enabled, `false` otherwise.
`void`	`readData(ObjectDataInput in)` Reads fields from the input stream
`QueueStoreConfig`	`setClassName(String className)` Sets the class name of the queue store implementation to be used when instantiating the queue store.
`QueueStoreConfig`	`setEnabled(boolean enabled)` Enables or disables the queue store.
`QueueStoreConfig`	`setFactoryClassName(String factoryClassName)` Sets the factory class name which will be used to instantiate the queue store.
`QueueStoreConfig`	`setFactoryImplementation(QueueStoreFactory factoryImplementation)` Sets the queue store factory implementation which will be used to instantiate the queue store.
`QueueStoreConfig`	`setProperties(Properties properties)` Sets the properties to be used when instantiating the queue store.
`QueueStoreConfig`	`setProperty(String name, String value)` Sets a property to be used when instantiating the queue store.
`QueueStoreConfig`	`setStoreImplementation(QueueStore storeImplementation)` Sets the implementation of the queue store which will be used to store queue items.
`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_MEMORY_LIMIT
```
public static final int DEFAULT_MEMORY_LIMIT
```
    The default number of queue item values to keep in memory. This value is ignored if there is no queue store enabled or if the queue is a priority queue.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_BULK_LOAD
```
public static final int DEFAULT_BULK_LOAD
```
    The default size of batches in which the queue will be loaded from the queue store. This value is ignored if the queue is a priority queue. In that case, the queue is loaded fully during initialisation.
    
    See Also:
    
    Constant Field Values
  - STORE_BINARY
```
public static final String STORE_BINARY
```
    Binary: By default, Hazelcast stores the queue items in serialized form in memory. Before it inserts the queue items into datastore, it deserializes them. But if you will not reach the queue store from an external application, you might prefer that the items be inserted in binary form. You can get rid of the de-serialization step; this would be a performance optimization. The binary feature is disabled by default.
    
    See Also:
    
    Constant Field Values
  - STORE_MEMORY_LIMIT
```
public static final String STORE_MEMORY_LIMIT
```
    Memory Limit: This is the number of items after which Hazelcast will store items only to datastore. For example, if the memory limit is 1000, then the 1001st item will be put only to datastore. This feature is useful when you want to avoid out-of-memory conditions. The default number for memory-limit is 1000. If you want to always use memory, you can set it to Integer.MAX_VALUE.
    
    See Also:
    
    Constant Field Values
  - STORE_BULK_LOAD
```
public static final String STORE_BULK_LOAD
```
    Bulk Load: When the queue is initialized, items are loaded from QueueStore in bulks. Bulk load is the size of these bulks. By default, bulk-load is 250.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - QueueStoreConfig
```
public QueueStoreConfig()
```
  - QueueStoreConfig
```
public QueueStoreConfig(QueueStoreConfig config)
```
- Method Detail
  - getStoreImplementation
```
@Nullable
public QueueStore getStoreImplementation()
```
    Returns the implementation of the queue store which will be used to store queue items.
  - setStoreImplementation
```
public QueueStoreConfig setStoreImplementation(@Nonnull
                                               QueueStore storeImplementation)
```
    Sets the implementation of the queue store which will be used to store queue items.
    
    Parameters:
    
    storeImplementation - the implementation to store queue items
    
    Returns:
    
    this configuration
    
    Throws:
    
    NullPointerException - if the provided implementation is null
  - isEnabled
```
public boolean isEnabled()
```
    Returns true if the queue store is enabled, false otherwise.
  - setEnabled
```
public QueueStoreConfig setEnabled(boolean enabled)
```
    Enables or disables the queue store.
    
    Parameters:
    
    enabled - true to enable the queue store, false to disable it
    
    Returns:
    
    this configuration
  - getClassName
```
@Nullable
public String getClassName()
```
    Returns the class name of the queue store implementation to be used when instantiating the queue store.
  - setClassName
```
public QueueStoreConfig setClassName(@Nonnull
                                     String className)
```
    Sets the class name of the queue store implementation to be used when instantiating the queue store. The class should implement the QueueStore interface.
    
    Parameters:
    
    className - the queue store class name
    
    Returns:
    
    this configuration
  - getProperties
```
public Properties getProperties()
```
    Returns the properties to be used when instantiating the queue store. Some properties are used by Hazelcast to determine how to interact with the queue store (see STORE_MEMORY_LIMIT, STORE_BINARY and STORE_BULK_LOAD).
  - setProperties
```
public QueueStoreConfig setProperties(Properties properties)
```
    Sets the properties to be used when instantiating the queue store. Some properties are used by Hazelcast to determine how to interact with the queue store (see STORE_MEMORY_LIMIT, STORE_BINARY and STORE_BULK_LOAD).
    
    Parameters:
    
    properties - the properties to be used when instantiating the queue store
    
    Returns:
    
    this configuration
  - getProperty
```
public String getProperty(String name)
```
    Returns the property with the given name which is used when instantiating and interacting with the queue store.
    
    Parameters:
    
    name - the property name
    
    Returns:
    
    the property value
  - setProperty
```
public QueueStoreConfig setProperty(String name,
                                    String value)
```
    Sets a property to be used when instantiating the queue store. Some properties are used by Hazelcast to determine how to interact with the queue store (see STORE_MEMORY_LIMIT, STORE_BINARY and STORE_BULK_LOAD).
    
    Parameters:
    
    name - the property name
    
    value - the property value
    
    Returns:
    
    this configuration
  - getFactoryClassName
```
@Nullable
public String getFactoryClassName()
```
    Returns the factory class name which will be used to instantiate the queue store. The class should implement the QueueStoreFactory interface.
  - setFactoryClassName
```
public QueueStoreConfig setFactoryClassName(@Nonnull
                                            String factoryClassName)
```
    Sets the factory class name which will be used to instantiate the queue store. The class should implement the QueueStoreFactory interface.
    
    Parameters:
    
    factoryClassName - the queue store factory class name
    
    Returns:
    
    this configuration
  - getFactoryImplementation
```
@Nullable
public QueueStoreFactory getFactoryImplementation()
```
    Returns the queue store factory implementation which will be used to instantiate the queue store. The class should implement the QueueStoreFactory interface.
  - setFactoryImplementation
```
public QueueStoreConfig setFactoryImplementation(@Nonnull
                                                 QueueStoreFactory factoryImplementation)
```
    Sets the queue store factory implementation which will be used to instantiate the queue store. The class should implement the QueueStoreFactory interface.
    
    Parameters:
    
    factoryImplementation - the queue store factory implementation
    
    Returns:
    
    this configuration
  - 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
  - getClassId
```
public int getClassId()
```
    Description copied from interface: IdentifiedDataSerializable
    
    Returns type identifier for this class. It should be unique per DataSerializableFactory.
    
    Specified by:
    
    getClassId 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

Class QueueStoreConfig

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_MEMORY_LIMIT

DEFAULT_BULK_LOAD

STORE_BINARY

STORE_MEMORY_LIMIT

STORE_BULK_LOAD

Constructor Detail

QueueStoreConfig

QueueStoreConfig

Method Detail

getStoreImplementation

setStoreImplementation

isEnabled

setEnabled

getClassName

setClassName

getProperties

setProperties

getProperty

setProperty

getFactoryClassName

setFactoryClassName

getFactoryImplementation

setFactoryImplementation

toString

getFactoryId

getClassId

writeData

readData

equals

hashCode