Package org.springframework.data.cassandra.core

Class CassandraPersistentEntitySchemaDropper

java.lang.Object

org.springframework.data.cassandra.core.CassandraPersistentEntitySchemaDropper

public class CassandraPersistentEntitySchemaDropper
extends Object

Schema drop support for Cassandra based on CassandraMappingContext and CassandraPersistentEntity. This class generates CQL to drop user types (UDT) and tables.

Since:

1.5

Author:

Mark Paluch

See Also:

• Table
• UserDefinedType
• CassandraType

Constructor Summary

Constructors

Constructor	Description
CassandraPersistentEntitySchemaDropper(CassandraMappingContext mappingContext, CassandraAdminOperations cassandraAdminOperations)	Create a new CassandraPersistentEntitySchemaDropper for the given CassandraMappingContext and CassandraAdminOperations.

Method Summary

Modifier and Type	Method	Description
void	dropTables(boolean dropUnused)	Drop tables that exist in the keyspace.
void	dropUserTypes(boolean dropUnused)	Drop user types that exist in the keyspace.

Methods inherited from class java.lang.Object

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

Constructor Details

CassandraPersistentEntitySchemaDropper

public CassandraPersistentEntitySchemaDropper(CassandraMappingContext mappingContext,
 CassandraAdminOperations cassandraAdminOperations)

Create a new CassandraPersistentEntitySchemaDropper for the given CassandraMappingContext and CassandraAdminOperations.

Parameters:

mappingContext - must not be null.

cassandraAdminOperations - must not be null.

Method Details

dropTables

public void dropTables(boolean dropUnused)

Drop tables that exist in the keyspace.

Parameters:

dropUnused - true to drop unused tables. Table usage is determined by existing table mappings.

dropUserTypes

public void dropUserTypes(boolean dropUnused)

Drop user types that exist in the keyspace.

Parameters:

dropUnused - true to drop unused types before creation. Type usage is determined from existing mapped UserDefinedTypes and UDT names on field specifications.