CassandraDataStore (Apache Wicket IDataStore Cassandra 7.6.0 API)

java.lang.Object
- org.wicketstuff.datastores.cassandra.CassandraDataStore

All Implemented Interfaces:

org.apache.wicket.pageStore.IDataStore
```
public class CassandraDataStore
extends Object
implements org.apache.wicket.pageStore.IDataStore
```
An IDataStore that saves the pages' bytes in Apache Cassandra

Constructor Summary

Constructors
Constructor and Description
`CassandraDataStore(com.datastax.driver.core.Cluster cluster, ICassandraSettings settings)` Constructor.
`CassandraDataStore(ICassandraSettings settings)` Constructor.

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`canBeAsynchronous()`
`protected com.datastax.driver.core.KeyspaceMetadata`	`createKeyspaceIfNecessary(String keyspaceName, com.datastax.driver.core.Metadata metadata)` Creates the Cassandra keyspace where the data will be stored if it doesn't exists already
`protected void`	`createTableIfNecessary(String keyspaceName, com.datastax.driver.core.KeyspaceMetadata keyspaceMetadata)` Creates the table where the data will be stored if it doesn't exists already
`void`	`destroy()`
`byte[]`	`getData(String sessionId, int pageId)`
`boolean`	`isReplicated()`
`void`	`removeData(String sessionId)`
`void`	`removeData(String sessionId, int pageId)`
`void`	`storeData(String sessionId, int pageId, byte[] data)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - CassandraDataStore
```
public CassandraDataStore(ICassandraSettings settings)
```
    Constructor. Creates a Cluster based on the contact points provided by the passed settings
    
    Parameters:
    settings - The various settings
  - CassandraDataStore
```
public CassandraDataStore(com.datastax.driver.core.Cluster cluster,
                  ICassandraSettings settings)
```
    Constructor. Initializes the connection to the Cassandra cluster and creates the keyspace and/or table if necessary.
    
    Parameters:
    cluster - The Cassandra cluster
    settings - The various settings
- Method Detail
  - getData
```
public byte[] getData(String sessionId,
             int pageId)
```
    Specified by:
    
    getData in interface org.apache.wicket.pageStore.IDataStore
  - removeData
```
public void removeData(String sessionId,
              int pageId)
```
    Specified by:
    
    removeData in interface org.apache.wicket.pageStore.IDataStore
  - removeData
```
public void removeData(String sessionId)
```
    Specified by:
    
    removeData in interface org.apache.wicket.pageStore.IDataStore
  - storeData
```
public void storeData(String sessionId,
             int pageId,
             byte[] data)
```
    Specified by:
    
    storeData in interface org.apache.wicket.pageStore.IDataStore
  - destroy
```
public void destroy()
```
    Specified by:
    
    destroy in interface org.apache.wicket.pageStore.IDataStore
  - isReplicated
```
public boolean isReplicated()
```
    Specified by:
    
    isReplicated in interface org.apache.wicket.pageStore.IDataStore
  - canBeAsynchronous
```
public boolean canBeAsynchronous()
```
    Specified by:
    
    canBeAsynchronous in interface org.apache.wicket.pageStore.IDataStore
  - createTableIfNecessary
```
protected void createTableIfNecessary(String keyspaceName,
                          com.datastax.driver.core.KeyspaceMetadata keyspaceMetadata)
```
    Creates the table where the data will be stored if it doesn't exists already
    
    Parameters:
    keyspaceName - The name of the keyspace where to create the table
    keyspaceMetadata - The keyspace metadata. May be null if this is the first usage of this store with these settings
  - createKeyspaceIfNecessary
```
protected com.datastax.driver.core.KeyspaceMetadata createKeyspaceIfNecessary(String keyspaceName,
                                                                  com.datastax.driver.core.Metadata metadata)
```
    Creates the Cassandra keyspace where the data will be stored if it doesn't exists already
    
    Parameters:
    keyspaceName - The name of the keyspace
    metadata - The cluster metadata
    
    Returns:
    The keyspace metadata. May be null if the the metadata doesn't exists yet.

Class CassandraDataStore

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

CassandraDataStore

CassandraDataStore

Method Detail

getData

removeData

removeData

storeData

destroy

isReplicated

canBeAsynchronous

createTableIfNecessary

createKeyspaceIfNecessary