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:

Serializable, org.hibernate.boot.model.relational.ExportableProducer, org.hibernate.generator.BeforeExecutionGenerator, org.hibernate.generator.Generator, org.hibernate.id.Configurable, org.hibernate.id.IdentifierGenerator, ReactiveIdentifierGenerator<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(org.hibernate.id.enhanced.TableStructure structure, org.hibernate.metamodel.spi.RuntimeModelCreationContext runtimeModelCreationContext)

Method Summary

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

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

determineDefaultSegmentValue, determineIncrement, determineInitialValue, generate, getBlockSize, nextHiValue

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.id.Configurable

configure, initialize

Methods inherited from interface org.hibernate.generator.Generator

allowAssignedIdentifiers, allowMutation, generatedBeforeExecution, generatedOnExecution, generatesOnForceIncrement, generatesOnInsert, generatesOnUpdate, generatesSometimes

Methods inherited from interface org.hibernate.id.IdentifierGenerator

generate, getEventTypes, registerExportables

Methods inherited from interface org.hibernate.reactive.id.ReactiveIdentifierGenerator

generate

Constructor Details

EmulatedSequenceReactiveIdentifierGenerator

public EmulatedSequenceReactiveIdentifierGenerator(org.hibernate.id.enhanced.TableStructure structure,
 org.hibernate.metamodel.spi.RuntimeModelCreationContext runtimeModelCreationContext)

Method Details

configure

public void configure(org.hibernate.type.Type type,
 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 Boolean determineStoreLastUsedValue(org.hibernate.service.ServiceRegistry serviceRegistry)

Overrides:

determineStoreLastUsedValue in class TableReactiveIdentifierGenerator

determineTableName

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

Overrides:

determineTableName in class TableReactiveIdentifierGenerator

determineValueColumnNameForTable

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

Overrides:

determineValueColumnNameForTable in class TableReactiveIdentifierGenerator

determineSegmentColumnName

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

Overrides:

determineSegmentColumnName in class TableReactiveIdentifierGenerator

determineSegmentValue

protected String determineSegmentValue(Properties params)

Overrides:

determineSegmentValue in class TableReactiveIdentifierGenerator

updateParameters

protected Object[] updateParameters(long currentValue,
 long updatedValue)

Overrides:

updateParameters in class TableReactiveIdentifierGenerator

insertParameters

protected Object[] insertParameters(long insertedValue)

Overrides:

insertParameters in class TableReactiveIdentifierGenerator

selectParameters

protected Object[] selectParameters()

Overrides:

selectParameters in class TableReactiveIdentifierGenerator

buildSelectQuery

protected String buildSelectQuery(org.hibernate.dialect.Dialect dialect)

Overrides:

buildSelectQuery in class TableReactiveIdentifierGenerator

buildUpdateQuery

protected String buildUpdateQuery(org.hibernate.dialect.Dialect dialect)

Overrides:

buildUpdateQuery in class TableReactiveIdentifierGenerator

buildInsertQuery

protected String buildInsertQuery(org.hibernate.dialect.Dialect dialect)

Overrides:

buildInsertQuery in class TableReactiveIdentifierGenerator