Package com.dtsx.astra.sdk.cassio

Class AbstractCassandraTable<RECORD>

java.lang.Object

com.dtsx.astra.sdk.cassio.AbstractCassandraTable<RECORD>

Type Parameters:

RECORD - object in use with Cassandra

Direct Known Subclasses:

ClusteredMetadataVectorTable, MetadataVectorTable

public abstract class AbstractCassandraTable<RECORD>
extends Object

Abstract class for table management at Cassandra level.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ATTRIBUTES_BLOB	Table column names.
static final String	BODY_BLOB	Table column names.
static final String	COLUMN_SIMILARITY	Table column names.
protected final com.datastax.oss.driver.api.core.CqlSession	cqlSession	Session to Cassandra.
static final int	DEFAULT_RECORD_COUNT	Default Number of item retrieved
protected final String	keyspaceName	Destination keyspace.
static final String	METADATA_S	Table column names.
static final String	PARTITION_ID	Table column names.
static final String	ROW_ID	Table column names.
static final String	SAI_INDEX_CLASSNAME	Class needed to create a SAI Index.
protected final String	tableName	Destination table.
static final String	VECTOR	Table column names.

Constructor Summary

Constructors

Constructor	Description
AbstractCassandraTable(com.datastax.oss.driver.api.core.CqlSession session, String keyspaceName, String tableName)	Default cosntructor.

Method Summary

Modifier and Type	Method	Description
void	clear()	Empty a table
abstract void	create()	Create table if not exist.
void	delete()	Delete the table.
com.datastax.oss.driver.api.core.CqlSession	getCqlSession()	Gets cqlSession
abstract RECORD	mapRow(com.datastax.oss.driver.api.core.cql.Row row)	Should be table to map from a Cassandra row to a record.
abstract void	put(RECORD row)	Upsert a row of the table.
CompletableFuture<Void>	putAsync(RECORD inputRow)	Insert a row asynchronously.

Methods inherited from class java.lang.Object

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

Field Details

SAI_INDEX_CLASSNAME

public static final String SAI_INDEX_CLASSNAME

Class needed to create a SAI Index.

See Also:

• Constant Field Values

PARTITION_ID

public static final String PARTITION_ID

Table column names.

See Also:

• Constant Field Values

ROW_ID

public static final String ROW_ID

Table column names.

See Also:

• Constant Field Values

ATTRIBUTES_BLOB

public static final String ATTRIBUTES_BLOB

Table column names.

See Also:

• Constant Field Values

BODY_BLOB

public static final String BODY_BLOB

Table column names.

See Also:

• Constant Field Values

METADATA_S

public static final String METADATA_S

Table column names.

See Also:

• Constant Field Values

VECTOR

public static final String VECTOR

Table column names.

See Also:

• Constant Field Values

COLUMN_SIMILARITY

public static final String COLUMN_SIMILARITY

Table column names.

See Also:

• Constant Field Values

DEFAULT_RECORD_COUNT

public static final int DEFAULT_RECORD_COUNT

Default Number of item retrieved

See Also:

• Constant Field Values

cqlSession

protected final com.datastax.oss.driver.api.core.CqlSession cqlSession

Session to Cassandra.

keyspaceName

protected final String keyspaceName

Destination keyspace.

tableName

protected final String tableName

Destination table.

Constructor Details

AbstractCassandraTable

public AbstractCassandraTable(com.datastax.oss.driver.api.core.CqlSession session,
 String keyspaceName,
 String tableName)

Default cosntructor.

Parameters:

session - cassandra session

keyspaceName - keyspace

tableName - table Name

Method Details

create

public abstract void create()

Create table if not exist.

put

public abstract void put(RECORD row)

Upsert a row of the table.

Parameters:

row - current row

mapRow

public abstract RECORD mapRow(com.datastax.oss.driver.api.core.cql.Row row)

Should be table to map from a Cassandra row to a record.

Parameters:

row - current cassandra row

Returns:

current record

putAsync

public CompletableFuture<Void> putAsync(RECORD inputRow)

Insert a row asynchronously.

Parameters:

inputRow - current row

Returns:

output

delete

public void delete()

Delete the table.

clear

public void clear()

Empty a table

getCqlSession

public com.datastax.oss.driver.api.core.CqlSession getCqlSession()

Gets cqlSession

Returns:

value of cqlSession