Class DropTableConstantAction

java.lang.Object

org.apache.derby.impl.sql.execute.DDLConstantAction

org.apache.derby.impl.sql.execute.DDLSingleTableConstantAction

org.apache.derby.impl.sql.execute.DropTableConstantAction

All Implemented Interfaces:

ConstantAction

class DropTableConstantAction
extends DDLSingleTableConstantAction

This class describes actions that are ALWAYS performed for a DROP TABLE Statement at Execution time.

Field Summary

Fields

Modifier and Type	Field	Description
private final boolean	cascade
private final long	conglomerateNumber
private final String	fullTableName
private final SchemaDescriptor	sd
private final String	tableName

Fields inherited from class DDLSingleTableConstantAction

tableId

Fields inherited from interface ConstantAction

WHEN_MATCHED_THEN_DELETE, WHEN_MATCHED_THEN_UPDATE, WHEN_NOT_MATCHED_THEN_INSERT

Constructor Summary

Constructors

Constructor	Description
DropTableConstantAction(String fullTableName, String tableName, SchemaDescriptor sd, long conglomerateNumber, UUID tableId, int behavior)	Make the ConstantAction for a DROP TABLE statement.

Method Summary

Modifier and Type	Method	Description
private void	dropAllConstraintDescriptors(TableDescriptor td, Activation activation)
static void	dropIdentitySequence(DataDictionary dataDictionary, TableDescriptor tableDescriptor, Activation activation)	Drop the sequence generator backing an identity column
void	executeConstantAction(Activation activation)	This is the guts of the Execution-time logic for DROP TABLE.
String	toString()

Methods inherited from class DDLSingleTableConstantAction

dropConglomerate, dropConglomerate, dropConstraint, dropConstraint, dropConstraint, executeConglomReplacement, getConglomReplacementAction, recreateUniqueConstraintBackingIndexAsUniqueWhenNotNull

Methods inherited from class DDLConstantAction

addColumnDependencies, adjustUDTDependencies, adjustUDTDependencies, constructToString, getAndCheckSchemaDescriptor, getSchemaDescriptorForCreate, lockTableForDDL, storeConstraintDependenciesOnPrivileges, storeViewTriggerDependenciesOnPrivileges

Methods inherited from class Object

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

Field Details

conglomerateNumber

private final long conglomerateNumber

fullTableName

private final String fullTableName

tableName

private final String tableName

sd

private final SchemaDescriptor sd

cascade

private final boolean cascade

Constructor Details

DropTableConstantAction

DropTableConstantAction(String fullTableName,
 String tableName,
 SchemaDescriptor sd,
 long conglomerateNumber,
 UUID tableId,
 int behavior)

Make the ConstantAction for a DROP TABLE statement.

Parameters:

fullTableName - Fully qualified table name

tableName - Table name.

sd - Schema that table lives in.

conglomerateNumber - Conglomerate number for heap

tableId - UUID for table

behavior - drop behavior: RESTRICT, CASCADE or default

Method Details

toString

public String toString()

Overrides:

toString in class Object

executeConstantAction

public void executeConstantAction(Activation activation)
                           throws StandardException

This is the guts of the Execution-time logic for DROP TABLE.

Parameters:

activation - The execution environment for this constant action.

Throws:

StandardException - Thrown on failure

See Also:

• ConstantAction.executeConstantAction(Activation)

dropIdentitySequence

public static void dropIdentitySequence(DataDictionary dataDictionary,
 TableDescriptor tableDescriptor,
 Activation activation)
                                 throws StandardException

Drop the sequence generator backing an identity column

Throws:

StandardException

dropAllConstraintDescriptors

private void dropAllConstraintDescriptors(TableDescriptor td,
 Activation activation)
                                   throws StandardException

Throws:

StandardException