org.eclipse.persistence.sequencing
Class TableSequence

java.lang.Object
  org.eclipse.persistence.sequencing.Sequence
      org.eclipse.persistence.sequencing.StandardSequence
          org.eclipse.persistence.sequencing.QuerySequence
              org.eclipse.persistence.sequencing.TableSequence

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class TableSequence
extends QuerySequence

Purpose: Defines sequencing through using a SEQUENCE table.

Description This is the default sequencing mechanism. A table defaulting to SEQUENCE is used to generate unique ids. The table has a name field (SEQ_NAME) storing each sequences name, and a counter (SEQ_COUNT) storing the last sequence id generated. There will be a row in the table for each sequence object.

See Also:

Serialized Form

Field Summary

protected java.lang.String	counterFieldName Hold the name of the column in the sequence table which specifies the sequence numeric value
static java.lang.String	defaultTableName Deprecated. Use an empty string as a default sequence table name instead, that triggers usage of platform.getDefaultSequenceTableName() when the sequence is connected.
protected java.lang.String	nameFieldName Hold the name of the column in the sequence table which specifies the sequence name
protected org.eclipse.persistence.internal.helper.DatabaseTable	table Hold the database table

Fields inherited from class org.eclipse.persistence.sequencing.QuerySequence

selectQuery, shouldAcquireValueAfterInsert, shouldSelectBeforeUpdate, shouldSkipUpdate, shouldUseTransaction, updateQuery, wasSelectQueryCreated, wasUpdateQueryCreated

Fields inherited from class org.eclipse.persistence.sequencing.Sequence

depth, initialValue, isCustomQualifier, name, platform, qualifier, shouldAlwaysOverrideExistingValue, size

Constructor Summary

TableSequence()

TableSequence(java.lang.String name)
Create a new sequence with the name.

TableSequence(java.lang.String name, int size)
Create a new sequence with the name and sequence pre-allocation size.

TableSequence(java.lang.String name, int size, int initialValue)

TableSequence(java.lang.String name, int size, java.lang.String tableName)

TableSequence(java.lang.String name, int size, java.lang.String tableName, java.lang.String nameFieldName, java.lang.String counterFieldName)

TableSequence(java.lang.String name, java.lang.String tableName)
Create a new sequence with the name, and the sequence table name.

TableSequence(java.lang.String name, java.lang.String tableName, java.lang.String nameFieldName, java.lang.String counterFieldName)
Create a new sequence with the name, and the sequence table information.

Method Summary

protected ValueReadQuery	buildSelectQuery() INTERNAL:
protected DataModifyQuery	buildUpdateQuery() INTERNAL:
boolean	equals(java.lang.Object obj)
java.lang.String	getCounterFieldName()
java.lang.String	getNameFieldName()
java.lang.String	getQualifiedTableName()
org.eclipse.persistence.internal.helper.DatabaseTable	getTable()
java.lang.String	getTableName()
boolean	isTable()
void	onConnect() INTERNAL:
void	setCounterFieldName(java.lang.String name)
void	setNameFieldName(java.lang.String name)
void	setTable(org.eclipse.persistence.internal.helper.DatabaseTable table)
void	setTableName(java.lang.String name)

Methods inherited from class org.eclipse.persistence.sequencing.QuerySequence

buildSelectQuery, buildUpdateQuery, createArguments, getSelectQuery, getUpdateQuery, onDisconnect, select, setSelectQuery, setShouldAcquireValueAfterInsert, setShouldSelectBeforeUpdate, setShouldSkipUpdate, setShouldUseTransaction, setUpdateQuery, shouldAcquireValueAfterInsert, shouldSelectBeforeUpdate, shouldSkipUpdate, shouldUseTransaction, update, updateAndSelectSequence

Methods inherited from class org.eclipse.persistence.sequencing.StandardSequence

createVector, getGeneratedValue, getGeneratedVector, setInitialValue

Methods inherited from class org.eclipse.persistence.sequencing.Sequence

clone, equalNameAndSize, getDatasourcePlatform, getGeneratedValue, getGeneratedVector, getInitialValue, getName, getPreallocationSize, getQualified, getQualifier, isConnected, isCustomQualifier, isNative, isUnaryTable, onConnect, onDisconnect, setDatasourcePlatform, setName, setPreallocationSize, setQualifier, setShouldAlwaysOverrideExistingValue, shouldAlwaysOverrideExistingValue, shouldAlwaysOverrideExistingValue, shouldUsePreallocation, toString, verifyPlatform

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

defaultTableName

public static final java.lang.String defaultTableName

Deprecated. Use an empty string as a default sequence table name instead, that triggers usage of platform.getDefaultSequenceTableName() when the sequence is connected.

Default sequence table name

See Also:

Constant Field Values

table

protected org.eclipse.persistence.internal.helper.DatabaseTable table

Hold the database table

counterFieldName

protected java.lang.String counterFieldName

Hold the name of the column in the sequence table which specifies the sequence numeric value

nameFieldName

protected java.lang.String nameFieldName

Hold the name of the column in the sequence table which specifies the sequence name

Constructor Detail

TableSequence

public TableSequence()

TableSequence

public TableSequence(java.lang.String name)

Create a new sequence with the name.

TableSequence

public TableSequence(java.lang.String name,
                     int size)

Create a new sequence with the name and sequence pre-allocation size.

TableSequence

public TableSequence(java.lang.String name,
                     int size,
                     int initialValue)

TableSequence

public TableSequence(java.lang.String name,
                     java.lang.String tableName)

Create a new sequence with the name, and the sequence table name.

TableSequence

public TableSequence(java.lang.String name,
                     java.lang.String tableName,
                     java.lang.String nameFieldName,
                     java.lang.String counterFieldName)

Create a new sequence with the name, and the sequence table information.

TableSequence

public TableSequence(java.lang.String name,
                     int size,
                     java.lang.String tableName)

TableSequence

public TableSequence(java.lang.String name,
                     int size,
                     java.lang.String tableName,
                     java.lang.String nameFieldName,
                     java.lang.String counterFieldName)

Method Detail

isTable

public boolean isTable()

Overrides:

isTable in class Sequence

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class QuerySequence

getCounterFieldName

public java.lang.String getCounterFieldName()

setCounterFieldName

public void setCounterFieldName(java.lang.String name)

getNameFieldName

public java.lang.String getNameFieldName()

setNameFieldName

public void setNameFieldName(java.lang.String name)

getTable

public org.eclipse.persistence.internal.helper.DatabaseTable getTable()

getTableName

public java.lang.String getTableName()

getQualifiedTableName

public java.lang.String getQualifiedTableName()

setTable

public void setTable(org.eclipse.persistence.internal.helper.DatabaseTable table)

setTableName

public void setTableName(java.lang.String name)

onConnect

public void onConnect()

Description copied from class: QuerySequence

INTERNAL:

Overrides:

onConnect in class QuerySequence

buildSelectQuery

protected ValueReadQuery buildSelectQuery()

Description copied from class: QuerySequence

INTERNAL:

Overrides:

buildSelectQuery in class QuerySequence

buildUpdateQuery

protected DataModifyQuery buildUpdateQuery()

Description copied from class: QuerySequence

INTERNAL:

Overrides:

buildUpdateQuery in class QuerySequence