com.ing.data.cassandra.jdbc.metadata

Class SchemaMetadataResultSetBuilder

java.lang.Object

com.ing.data.cassandra.jdbc.metadata.AbstractMetadataResultSetBuilder

com.ing.data.cassandra.jdbc.metadata.SchemaMetadataResultSetBuilder

public class SchemaMetadataResultSetBuilder
extends AbstractMetadataResultSetBuilder

Utility class building metadata result sets (CassandraMetadataResultSet objects) related to schemas.

Constructor Summary

Constructors

Constructor and Description
SchemaMetadataResultSetBuilder(CassandraStatement statement) Constructor.

Method Summary

Modifier and Type	Method and Description
CassandraMetadataResultSet	buildSchemas(String schemaPattern) Builds a valid result set of the schema names available in this Cassandra database.

Methods inherited from class com.ing.data.cassandra.jdbc.metadata.AbstractMetadataResultSetBuilder

matchesPattern

Methods inherited from class java.lang.Object

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

Constructor Detail

SchemaMetadataResultSetBuilder

public SchemaMetadataResultSetBuilder(CassandraStatement statement)
                               throws SQLException

Constructor.

Parameters:

statement - The statement.

Throws:

SQLException - if a database access error occurs or this statement is closed.

Method Detail

buildSchemas

public CassandraMetadataResultSet buildSchemas(String schemaPattern)
                                        throws SQLException

Builds a valid result set of the schema names available in this Cassandra database. This method is used to implement the methods DatabaseMetaData.getSchemas() and DatabaseMetaData.getSchemas(String, String). The results are ordered by TABLE_CATALOG, then TABLE_SCHEMA.

The columns of this result set are:

1. TABLE_SCHEM String => schema name: here is the keyspace name.
2. TABLE_CATALOG String => catalog name, may be null: here is the Cassandra cluster name (if available).

Parameters:

schemaPattern - A schema name pattern. It must match the schema name as it is stored in the database; null means that the schema name should not be used to narrow the search. Using "" as the same effect as null because here the schema corresponds to the keyspace and Cassandra tables cannot be defined outside a keyspace.

Returns:

A valid result set for implementation of DatabaseMetaData.getSchemas(String, String).

Throws:

SQLException - when something went wrong during the creation of the result set.