Class CreateSequenceConstantAction
java.lang.Object
org.apache.derby.impl.sql.execute.DDLConstantAction
org.apache.derby.impl.sql.execute.CreateSequenceConstantAction
- All Implemented Interfaces:
ConstantAction
This class performs actions that are ALWAYS performed for a
CREATE SEQUENCE statement at execution time.
These SQL objects are stored in the SYS.SYSSEQUENCES table.
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate boolean
private DataTypeDescriptor
private long
private long
private long
private String
private String
private long
Fields inherited from interface org.apache.derby.iapi.sql.execute.ConstantAction
WHEN_MATCHED_THEN_DELETE, WHEN_MATCHED_THEN_UPDATE, WHEN_NOT_MATCHED_THEN_INSERT
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Constructor Summary
ConstructorsConstructorDescriptionCreateSequenceConstantAction
(String schemaName, String sequenceName, DataTypeDescriptor dataType, long initialValue, long stepValue, long maxValue, long minValue, boolean cycle) Make the ConstantAction for a CREATE SEQUENCE statement. -
Method Summary
Modifier and TypeMethodDescriptionvoid
executeConstantAction
(Activation activation) This is the guts of the Execution-time logic for CREATE SEQUENCE.toString()
Methods inherited from class org.apache.derby.impl.sql.execute.DDLConstantAction
addColumnDependencies, adjustUDTDependencies, adjustUDTDependencies, constructToString, getAndCheckSchemaDescriptor, getSchemaDescriptorForCreate, lockTableForDDL, storeConstraintDependenciesOnPrivileges, storeViewTriggerDependenciesOnPrivileges
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Field Details
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_sequenceName
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_schemaName
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_dataType
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_initialValue
private long _initialValue -
_stepValue
private long _stepValue -
_maxValue
private long _maxValue -
_minValue
private long _minValue -
_cycle
private boolean _cycle
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Constructor Details
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CreateSequenceConstantAction
public CreateSequenceConstantAction(String schemaName, String sequenceName, DataTypeDescriptor dataType, long initialValue, long stepValue, long maxValue, long minValue, boolean cycle) Make the ConstantAction for a CREATE SEQUENCE statement. When executed, will create a sequence by the given name.- Parameters:
sequenceName
- The name of the sequence being createddataType
- Exact numeric type of the new sequenceinitialValue
- Starting valuestepValue
- Increment amountmaxValue
- Largest value returned by the sequence generatorminValue
- Smallest value returned by the sequence generatorcycle
- True if the generator should wrap around, false otherwise
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Method Details
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executeConstantAction
This is the guts of the Execution-time logic for CREATE SEQUENCE.- Parameters:
activation
- The execution environment for this constant action.- Throws:
StandardException
- Thrown on failure- See Also:
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toString
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