Class DropAliasConstantAction

java.lang.Object

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

org.apache.derby.impl.sql.execute.DropAliasConstantAction

All Implemented Interfaces:

ConstantAction

class DropAliasConstantAction
extends DDLConstantAction

This class performs actions that are ALWAYS performed for a DROP FUNCTION/PROCEDURE/SYNONYM statement at execution time. All of these SQL objects are represented by an AliasDescriptor.

Field Summary

Fields

Modifier and Type	Field	Description
private final String	aliasName
private final char	nameSpace
private SchemaDescriptor	sd

Fields inherited from interface ConstantAction

WHEN_MATCHED_THEN_DELETE, WHEN_MATCHED_THEN_UPDATE, WHEN_NOT_MATCHED_THEN_INSERT

Constructor Summary

Constructors

Constructor	Description
DropAliasConstantAction(SchemaDescriptor sd, String aliasName, char nameSpace)	Make the ConstantAction for a DROP ALIAS statement.

Method Summary

Modifier and Type	Method	Description
void	executeConstantAction(Activation activation)	This is the guts of the Execution-time logic for DROP ALIAS.
String	toString()

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

sd

private SchemaDescriptor sd

aliasName

private final String aliasName

nameSpace

private final char nameSpace

Constructor Details

DropAliasConstantAction

DropAliasConstantAction(SchemaDescriptor sd,
 String aliasName,
 char nameSpace)

Make the ConstantAction for a DROP ALIAS statement.

Parameters:

aliasName - Alias name.

nameSpace - Alias name space.

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 ALIAS.

Parameters:

activation - The execution environment for this constant action.

Throws:

StandardException - Thrown on failure

See Also:

• ConstantAction.executeConstantAction(Activation)