org.apache.derby.impl.sql.catalog

Class SequenceRange

java.lang.Object

org.apache.derby.impl.sql.catalog.SequenceRange

All Implemented Interfaces:

SequencePreallocator

public class SequenceRange
extends java.lang.Object
implements SequencePreallocator

Default Derby logic for determining how many values to pre-allocate for an identity column or sequence.

Constructor Summary

Constructors

Constructor and Description
SequenceRange() 0-arg constructore needed to satisfy the SequencePreallocator contract.
SequenceRange(int rangeSize)

Method Summary

Modifier and Type	Method and Description
int	nextRangeSize(java.lang.String schemaName, java.lang.String sequenceName) This method returns the size of the next pre-allocated range for the specified sequence.

Methods inherited from class java.lang.Object

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

Constructor Detail

SequenceRange

public SequenceRange()

0-arg constructore needed to satisfy the SequencePreallocator contract.

SequenceRange

public SequenceRange(int rangeSize)

Method Detail

nextRangeSize

public int nextRangeSize(java.lang.String schemaName,
                         java.lang.String sequenceName)

Description copied from interface: SequencePreallocator

This method returns the size of the next pre-allocated range for the specified sequence. Names are case-sensitive, as specified in CREATE SEQUENCE and CREATE TABLE statements.

Specified by:

nextRangeSize in interface SequencePreallocator

Parameters:

schemaName - Name of schema holding the sequence.

sequenceName - Specific name of the sequence.