org.verdictdb

Class VerdictContext

java.lang.Object

org.verdictdb.VerdictContext

public class VerdictContext
extends Object

Constructor Summary

Constructors

Constructor and Description
VerdictContext(DbmsConnection conn)

Method Summary

Modifier and Type	Method and Description
void	abort() terminates all open execution context.
ExecutionContext	createNewExecutionContext()
static VerdictContext	fromConnectionString(String jdbcConnectionString)
static VerdictContext	fromConnectionString(String jdbcConnectionString, Properties info)
static VerdictContext	fromConnectionString(String jdbcConnectionString, String user, String password)
static VerdictContext	fromJdbcConnection(Connection jdbcConn)
DbmsConnection	getConnection()
String	getContextId()
DbmsConnection	getCopiedConnection()
void	scramble(String originalSchema, String originalTable)
void	scramble(String originalSchema, String originalTable, String newSchema, String newTable)
VerdictSingleResult	sql(String query) Returns a reliable result set as an answer.
VerdictResultStream	streamsql(String query)

Methods inherited from class java.lang.Object

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

Constructor Detail

VerdictContext

public VerdictContext(DbmsConnection conn)

Method Detail

fromJdbcConnection

public static VerdictContext fromJdbcConnection(Connection jdbcConn)
                                         throws VerdictDBDbmsException

Throws:

VerdictDBDbmsException

fromConnectionString

public static VerdictContext fromConnectionString(String jdbcConnectionString)
                                           throws SQLException,
                                                  VerdictDBDbmsException

Throws:

SQLException

VerdictDBDbmsException

fromConnectionString

public static VerdictContext fromConnectionString(String jdbcConnectionString,
                                                  Properties info)
                                           throws SQLException,
                                                  VerdictDBDbmsException

Throws:

SQLException

VerdictDBDbmsException

fromConnectionString

public static VerdictContext fromConnectionString(String jdbcConnectionString,
                                                  String user,
                                                  String password)
                                           throws SQLException,
                                                  VerdictDBDbmsException

Throws:

SQLException

VerdictDBDbmsException

getConnection

public DbmsConnection getConnection()

getCopiedConnection

public DbmsConnection getCopiedConnection()

getContextId

public String getContextId()

createNewExecutionContext

public ExecutionContext createNewExecutionContext()

abort

public void abort()

terminates all open execution context.

scramble

public void scramble(String originalSchema,
                     String originalTable)

scramble

public void scramble(String originalSchema,
                     String originalTable,
                     String newSchema,
                     String newTable)

sql

public VerdictSingleResult sql(String query)
                        throws VerdictDBException

Returns a reliable result set as an answer. Right now, simply returns the first batch of Continuous results.

Automatically spawns an independent execution context, then runs a query using it.

Parameters:

query - Either a select query or a create-scramble query

Returns:

A single query result is returned. If the query is a create-scramble query, the number of inserted rows are returned.

Throws:

VerdictDBException

streamsql

public VerdictResultStream streamsql(String query)
                              throws VerdictDBException

Parameters:

query - Either a select query or a create-scramble query.

Returns:

Reader enables progressive query result consumption. If this is a create-scramble query, the number of inserted rows are returned.

Throws:

VerdictDBException