Class DropConstraintConstantAction

java.lang.Object

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

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

org.apache.derby.impl.sql.execute.ConstraintConstantAction

org.apache.derby.impl.sql.execute.DropConstraintConstantAction

All Implemented Interfaces:

ConstantAction

public class DropConstraintConstantAction
extends ConstraintConstantAction

This class describes actions that are ALWAYS performed for a drop constraint at Execution time.

Version:

0.1

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	cascade
private String	constraintSchemaName
private int	verifyType

Fields inherited from class ConstraintConstantAction

constraintId, constraintName, constraintType, indexAction, schemaId, schemaName, 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
DropConstraintConstantAction(String constraintName, String constraintSchemaName, String tableName, UUID tableId, String tableSchemaName, IndexConstantAction indexAction, int behavior, int verifyType)	Make one of these puppies.

Method Summary

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

Methods inherited from class ConstraintConstantAction

getConstraintId, getConstraintName, getConstraintType, getIndexAction, validateConstraint, validateFKConstraint

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

cascade

private boolean cascade

constraintSchemaName

private String constraintSchemaName

verifyType

private int verifyType

Constructor Details

DropConstraintConstantAction

DropConstraintConstantAction(String constraintName,
 String constraintSchemaName,
 String tableName,
 UUID tableId,
 String tableSchemaName,
 IndexConstantAction indexAction,
 int behavior,
 int verifyType)

Make one of these puppies.

Parameters:

constraintName - Constraint name.

constraintSchemaName - the schema that constraint lives in.

tableName - Table name.

tableId - UUID of table.

tableSchemaName - the schema that table lives in.

indexAction - IndexConstantAction for constraint (if necessary)

behavior - the drop behavior (e.g. StatementType.DROP_CASCADE)

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 CONSTRAINT.

Parameters:

activation - The execution environment for this constant action.

Throws:

StandardException - Thrown on failure

See Also:

• ConstantAction.executeConstantAction(Activation)