org.datanucleus.store.cassandra.valuegenerator

Class IncrementGenerator

java.lang.Object

org.datanucleus.store.valuegenerator.AbstractGenerator<T>

org.datanucleus.store.valuegenerator.AbstractConnectedGenerator<Long>

org.datanucleus.store.cassandra.valuegenerator.IncrementGenerator

All Implemented Interfaces:

org.datanucleus.store.valuegenerator.ValueGenerator<Long>

public class IncrementGenerator
extends org.datanucleus.store.valuegenerator.AbstractConnectedGenerator<Long>

Value generator using a table in the datastore and incrementing a column, keyed by the field name that has the strategy.

Nested Class Summary

Nested classes/interfaces inherited from class org.datanucleus.store.valuegenerator.AbstractConnectedGenerator

org.datanucleus.store.valuegenerator.AbstractConnectedGenerator.ConnectionPreference

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	repositoryExists Flag for whether we know that the repository exists.

Fields inherited from class org.datanucleus.store.valuegenerator.AbstractConnectedGenerator

connectionProvider, properties

Fields inherited from class org.datanucleus.store.valuegenerator.AbstractGenerator

allocationSize, block, initialValue, name, storeMgr

Fields inherited from interface org.datanucleus.store.valuegenerator.ValueGenerator

PROPERTY_CATALOG_NAME, PROPERTY_CLASS_NAME, PROPERTY_COLUMN_NAME, PROPERTY_FIELD_NAME, PROPERTY_KEY_CACHE_SIZE, PROPERTY_KEY_DATABASE_CACHE_SIZE, PROPERTY_KEY_INITIAL_VALUE, PROPERTY_KEY_MAX_VALUE, PROPERTY_KEY_MIN_VALUE, PROPERTY_ROOT_CLASS_NAME, PROPERTY_SCHEMA_NAME, PROPERTY_SEQUENCE_NAME, PROPERTY_SEQUENCETABLE_CATALOG, PROPERTY_SEQUENCETABLE_NAME_COLUMN, PROPERTY_SEQUENCETABLE_NEXTVAL_COLUMN, PROPERTY_SEQUENCETABLE_SCHEMA, PROPERTY_SEQUENCETABLE_TABLE, PROPERTY_TABLE_NAME

Constructor Summary

Constructors

Constructor and Description
IncrementGenerator(org.datanucleus.store.StoreManager storeMgr, String name, Properties props)

Method Summary

Modifier and Type	Method and Description
protected boolean	createRepository()
protected String	getSchemaName()
protected org.datanucleus.store.valuegenerator.ValueGenerationBlock<Long>	reserveBlock(long size)

Methods inherited from class org.datanucleus.store.valuegenerator.AbstractConnectedGenerator

getConnectionPreference, setConnectionProvider

Methods inherited from class org.datanucleus.store.valuegenerator.AbstractGenerator

allocate, current, currentValue, getName, next, nextValue, obtainGenerationBlock, obtainGenerationBlock, reserveBlock

Methods inherited from class java.lang.Object

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

Field Detail

repositoryExists

protected boolean repositoryExists

Flag for whether we know that the repository exists.

Constructor Detail

IncrementGenerator

public IncrementGenerator(org.datanucleus.store.StoreManager storeMgr,
                          String name,
                          Properties props)

Method Detail

reserveBlock

protected org.datanucleus.store.valuegenerator.ValueGenerationBlock<Long> reserveBlock(long size)

Specified by:

reserveBlock in class org.datanucleus.store.valuegenerator.AbstractGenerator<Long>

getSchemaName

protected String getSchemaName()

createRepository

protected boolean createRepository()