Package app.ductape.sdk.database.adapters

Class CassandraDriverLiveAdapter

java.lang.Object

app.ductape.sdk.database.adapters.BaseAdapter

app.ductape.sdk.database.adapters.CassandraDriverLiveAdapter

public class CassandraDriverLiveAdapter
extends BaseAdapter

Real Cassandra adapter via the DataStax Java driver 4.x (Go/.NET Cassandra live-adapter parity). The connection pool is capped to 1 connection per node (local and remote) via TypedDriverOption.CONNECTION_POOL_LOCAL_SIZE/TypedDriverOption.CONNECTION_POOL_REMOTE_SIZE — the VPC connector tunnel local proxy only accepts a single TCP connection per connect() call, so pooling beyond 1 connection would be unusable anyway.

Mirrors sdk/ts/src/database/adapters/cassandra.adapter.ts's keyspace handling: the keyspace is resolved from connectionOptions.keyspace (or the connection URL path), defaulting to "ductape".

Field Summary

Fields inherited from class app.ductape.sdk.database.adapters.BaseAdapter

connected, connectionOptions, connectionUrl, maxRetries

Constructor Summary

Constructors

Constructor	Description
CassandraDriverLiveAdapter()

Method Summary

Modifier and Type	Method	Description
Map<String,Object>	connect(Map<String,Object> options)
void	createTable(String table, List<Map<String,Object>> columns)
protected DatabaseType	databaseType()
int	delete(String table, Map<String,Object> where)
void	disconnect()
void	dropTable(String table)
int	insert(String table, List<Map<String,Object>> rows)
List<String>	listTables()
List<Map<String,Object>>	query(String table, Map<String,Object> where, int limit, int offset)
Map<String,Object>	rawQuery(Map<String,Object> options)	TS adapter.rawQuery(options).
Map<String,Object>	schema(String table)
static boolean	shouldUse(Map<String,Object> options)	TS/.NET/Go parity gate: opt-in via options.live == true (with resolvable contact points) or the DUCTAPE_LIVE=true environment variable.
boolean	supportsDeferrableTransactions()	Cassandra has no SQL-style savepoint/deferrable-transaction support.
boolean	tableExists(String table)
Map<String,Object>	testConnection(Map<String,Object> options)
int	update(String table, Map<String,Object> where, Map<String,Object> setValues)

Methods inherited from class app.ductape.sdk.database.adapters.BaseAdapter

aggregate, attemptReconnect, beginTransaction, commitTransaction, createIndex, createSavepoint, dropIndex, executeWithRetry, executeWithRetry, getDatabaseType, getIndexStatistics, groupBy, isConnected, isConnectionError, listIndexes, releaseSavepoint, rollbackToSavepoint, rollbackTransaction

Methods inherited from class java.lang.Object

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

Constructor Details

CassandraDriverLiveAdapter

public CassandraDriverLiveAdapter()

Method Details

databaseType

protected DatabaseType databaseType()

Specified by:

databaseType in class BaseAdapter

shouldUse

public static boolean shouldUse(Map<String,Object> options)

TS/.NET/Go parity gate: opt-in via options.live == true (with resolvable contact points) or the DUCTAPE_LIVE=true environment variable.

connect

public Map<String,Object> connect(Map<String,Object> options)

Specified by:

connect in class BaseAdapter

testConnection

public Map<String,Object> testConnection(Map<String,Object> options)

Specified by:

testConnection in class BaseAdapter

disconnect

public void disconnect()

Specified by:

disconnect in class BaseAdapter

query

public List<Map<String,Object>> query(String table,
 Map<String,Object> where,
 int limit,
 int offset)

Specified by:

query in class BaseAdapter

insert

public int insert(String table,
 List<Map<String,Object>> rows)

Specified by:

insert in class BaseAdapter

update

public int update(String table,
 Map<String,Object> where,
 Map<String,Object> setValues)

Specified by:

update in class BaseAdapter

delete

public int delete(String table,
 Map<String,Object> where)

Specified by:

delete in class BaseAdapter

tableExists

public boolean tableExists(String table)

Specified by:

tableExists in class BaseAdapter

listTables

public List<String> listTables()

Specified by:

listTables in class BaseAdapter

schema

public Map<String,Object> schema(String table)

Specified by:

schema in class BaseAdapter

createTable

public void createTable(String table,
 List<Map<String,Object>> columns)

Specified by:

createTable in class BaseAdapter

dropTable

public void dropTable(String table)

Specified by:

dropTable in class BaseAdapter

rawQuery

public Map<String,Object> rawQuery(Map<String,Object> options)

Description copied from class: BaseAdapter

TS adapter.rawQuery(options). Default in-memory behavior supports object queries by delegating to BaseAdapter.query(java.lang.String, java.util.Map<java.lang.String, java.lang.Object>, int, int).

Overrides:

rawQuery in class BaseAdapter

supportsDeferrableTransactions

public boolean supportsDeferrableTransactions()

Cassandra has no SQL-style savepoint/deferrable-transaction support.

Overrides:

supportsDeferrableTransactions in class BaseAdapter