Package org.hibernate.reactive.id.impl

Class EmulatedSequenceReactiveIdentifierGenerator

java.lang.Object

org.hibernate.reactive.id.impl.BlockingIdentifierGenerator

org.hibernate.reactive.id.impl.TableReactiveIdentifierGenerator

org.hibernate.reactive.id.impl.EmulatedSequenceReactiveIdentifierGenerator

All Implemented Interfaces:

java.io.Serializable, org.hibernate.boot.model.relational.ExportableProducer, org.hibernate.generator.BeforeExecutionGenerator, org.hibernate.generator.Generator, org.hibernate.id.Configurable, org.hibernate.id.IdentifierGenerator, ReactiveIdentifierGenerator<java.lang.Long>

public class EmulatedSequenceReactiveIdentifierGenerator
extends TableReactiveIdentifierGenerator

Support for JPA's SequenceGenerator for databases which do not support sequences. Persistence is managed via a table with just one row and one column.

This implementation supports block allocation, but does not guarantee that generated identifiers are sequential.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.hibernate.reactive.id.impl.TableReactiveIdentifierGenerator

renderedTableName, segmentColumnName, valueColumnName

Fields inherited from interface org.hibernate.id.IdentifierGenerator

CONTRIBUTOR_NAME, ENTITY_NAME, GENERATOR_NAME, JPA_ENTITY_NAME

Constructor Summary

Constructors

Constructor	Description
EmulatedSequenceReactiveIdentifierGenerator()

Method Summary

Modifier and Type	Method	Description
protected java.lang.String	buildInsertQuery()
protected java.lang.String	buildSelectQuery()
protected java.lang.String	buildUpdateQuery()
void	configure(org.hibernate.type.Type type, java.util.Properties params, org.hibernate.service.ServiceRegistry serviceRegistry)
protected int	determineIncrement(java.util.Properties params)
protected int	determineInitialValue(java.util.Properties params)
protected java.lang.String	determineSegmentColumnName(java.util.Properties params, org.hibernate.engine.jdbc.env.spi.JdbcEnvironment jdbcEnvironment)
protected java.lang.String	determineSegmentValue(java.util.Properties params)
protected java.lang.Boolean	determineStoreLastUsedValue(org.hibernate.service.ServiceRegistry serviceRegistry)
protected java.lang.String	determineTableName(org.hibernate.type.Type type, java.util.Properties params, org.hibernate.service.ServiceRegistry serviceRegistry)
protected java.lang.String	determineValueColumnNameForTable(java.util.Properties params, org.hibernate.engine.jdbc.env.spi.JdbcEnvironment jdbcEnvironment)
protected java.lang.Object[]	insertParameters(long insertedValue)
protected java.lang.Object[]	selectParameters()
protected java.lang.Object[]	updateParameters(long currentValue, long updatedValue)

Methods inherited from class org.hibernate.reactive.id.impl.TableReactiveIdentifierGenerator

determineDefaultSegmentValue, generate, getBlockSize, initialize, nextHiValue, registerExportables

Methods inherited from class org.hibernate.reactive.id.impl.BlockingIdentifierGenerator

generate

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.generator.BeforeExecutionGenerator

generatedOnExecution

Methods inherited from interface org.hibernate.generator.Generator

generatesOnInsert, generatesOnUpdate, generatesSometimes

Methods inherited from interface org.hibernate.id.IdentifierGenerator

generate, getEventTypes, supportsJdbcBatchInserts

Constructor Detail

EmulatedSequenceReactiveIdentifierGenerator

public EmulatedSequenceReactiveIdentifierGenerator()

Method Detail

configure

public void configure(org.hibernate.type.Type type,
                      java.util.Properties params,
                      org.hibernate.service.ServiceRegistry serviceRegistry)

Specified by:

configure in interface org.hibernate.id.Configurable

Specified by:

configure in interface org.hibernate.id.IdentifierGenerator

Overrides:

configure in class TableReactiveIdentifierGenerator

determineStoreLastUsedValue

protected java.lang.Boolean determineStoreLastUsedValue(org.hibernate.service.ServiceRegistry serviceRegistry)

Overrides:

determineStoreLastUsedValue in class TableReactiveIdentifierGenerator

determineTableName

protected java.lang.String determineTableName(org.hibernate.type.Type type,
                                              java.util.Properties params,
                                              org.hibernate.service.ServiceRegistry serviceRegistry)

Overrides:

determineTableName in class TableReactiveIdentifierGenerator

determineValueColumnNameForTable

protected java.lang.String determineValueColumnNameForTable(java.util.Properties params,
                                                            org.hibernate.engine.jdbc.env.spi.JdbcEnvironment jdbcEnvironment)

Overrides:

determineValueColumnNameForTable in class TableReactiveIdentifierGenerator

determineSegmentColumnName

protected java.lang.String determineSegmentColumnName(java.util.Properties params,
                                                      org.hibernate.engine.jdbc.env.spi.JdbcEnvironment jdbcEnvironment)

Overrides:

determineSegmentColumnName in class TableReactiveIdentifierGenerator

determineSegmentValue

protected java.lang.String determineSegmentValue(java.util.Properties params)

Overrides:

determineSegmentValue in class TableReactiveIdentifierGenerator

determineInitialValue

protected int determineInitialValue(java.util.Properties params)

Overrides:

determineInitialValue in class TableReactiveIdentifierGenerator

determineIncrement

protected int determineIncrement(java.util.Properties params)

Overrides:

determineIncrement in class TableReactiveIdentifierGenerator

updateParameters

protected java.lang.Object[] updateParameters(long currentValue,
                                              long updatedValue)

Overrides:

updateParameters in class TableReactiveIdentifierGenerator

insertParameters

protected java.lang.Object[] insertParameters(long insertedValue)

Overrides:

insertParameters in class TableReactiveIdentifierGenerator

selectParameters

protected java.lang.Object[] selectParameters()

Overrides:

selectParameters in class TableReactiveIdentifierGenerator

buildSelectQuery

protected java.lang.String buildSelectQuery()

Overrides:

buildSelectQuery in class TableReactiveIdentifierGenerator

buildUpdateQuery

protected java.lang.String buildUpdateQuery()

Overrides:

buildUpdateQuery in class TableReactiveIdentifierGenerator

buildInsertQuery

protected java.lang.String buildInsertQuery()

Overrides:

buildInsertQuery in class TableReactiveIdentifierGenerator