com.ing.data.cassandra.jdbc.utils

Class SpecialCommandsUtil

java.lang.Object

com.ing.data.cassandra.jdbc.utils.SpecialCommandsUtil

public final class SpecialCommandsUtil
extends Object

Utility methods for execution of special CQL commands.

Method Summary

Modifier and Type	Method and Description
static com.datastax.oss.driver.api.core.cql.ResultSet	buildEmptyResultSet() Builds an empty result set.
static com.datastax.oss.driver.api.core.cql.ResultSet	buildSpecialCommandResultSet(ColumnDefinitions.Definition[] colDefinitions, List<List<ByteBuffer>> rows) Builds a result set returned by a special command.
static boolean	containsSpecialCommands(String cql) Checks whether the CQL statement contains at least one special command (supported by this JDBC driver) to execute.
static SpecialCommands.SpecialCommandExecutor	getCommandExecutor(String cql) Gets the appropriate executor for special command.

Methods inherited from class java.lang.Object

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

Method Detail

containsSpecialCommands

public static boolean containsSpecialCommands(String cql)

Checks whether the CQL statement contains at least one special command (supported by this JDBC driver) to execute.

Parameters:

cql - The CQL statement.

Returns:

true if the given statement contains at least one special command to execute, false otherwise.

getCommandExecutor

public static SpecialCommands.SpecialCommandExecutor getCommandExecutor(String cql)

Gets the appropriate executor for special command.

Parameters:

cql - The CQL statement.

Returns:

The special command executor instance or null if the statement is not a special command or not supported.

buildEmptyResultSet

public static com.datastax.oss.driver.api.core.cql.ResultSet buildEmptyResultSet()

Builds an empty result set.

Returns:

The empty result set.

buildSpecialCommandResultSet

public static com.datastax.oss.driver.api.core.cql.ResultSet buildSpecialCommandResultSet(ColumnDefinitions.Definition[] colDefinitions,
                                                                                          List<List<ByteBuffer>> rows)

Builds a result set returned by a special command.

Parameters:

colDefinitions - The list of columns to include in the result set.

rows - The list of rows to include in the result set. Each row is a list of ByteBuffer representation of the data, each item of the list being the value of the n-th column.

Returns:

The result set.