Package org.eclipse.persistence.sequencing

Class QuerySequence

java.lang.Object

org.eclipse.persistence.sequencing.Sequence

org.eclipse.persistence.sequencing.StandardSequence

org.eclipse.persistence.sequencing.QuerySequence

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

EISSequence, NativeSequence, TableSequence, UnaryTableSequence

public class QuerySequence
extends StandardSequence

Purpose: An generic query sequence mechanism.

Description This sequence allows the sequence operations to be customized through user defined queries. A select and update query can be set which can use custom SQL or stored procedures to define the sequencing mechanism. If a single stored procedure is used that does the update and select only the select query needs to be set.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected ValueReadQuery	selectQuery
protected boolean	shouldAcquireValueAfterInsert
protected boolean	shouldSelectBeforeUpdate
protected boolean	shouldSkipUpdate
protected boolean	shouldUseTransaction
protected DataModifyQuery	updateQuery
protected boolean	wasSelectQueryCreated
protected boolean	wasUpdateQueryCreated

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

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

Constructor Summary

Constructors

Constructor	Description
QuerySequence()
QuerySequence(boolean shouldAcquireValueAfterInsert, boolean shouldUseTransaction)
QuerySequence(String name)	Create a new sequence with the name.
QuerySequence(String name, boolean shouldAcquireValueAfterInsert, boolean shouldUseTransaction)
QuerySequence(String name, int size)	Create a new sequence with the name and sequence pre-allocation size.
QuerySequence(String name, int size, boolean shouldAcquireValueAfterInsert, boolean shouldUseTransaction)
QuerySequence(String name, int size, int initialValue)
QuerySequence(String name, int size, int initialValue, boolean shouldAcquireValueAfterInsert, boolean shouldUseTransaction)

Method Summary

Modifier and Type	Method	Description
protected ValueReadQuery	buildSelectQuery()	INTERNAL:
protected ValueReadQuery	buildSelectQuery(String seqName, Integer size)	INTERNAL:
protected DataModifyQuery	buildUpdateQuery()	INTERNAL:
protected DataModifyQuery	buildUpdateQuery(String seqName, Number sizeOrNewValue)	INTERNAL:
protected Vector	createArguments(DatabaseQuery query, String seqName, Number sizeOrNewValue)	INTERNAL:
boolean	equals(Object obj)
ValueReadQuery	getSelectQuery()	PUBLIC:
DataModifyQuery	getUpdateQuery()	PUBLIC:
int	hashCode()
void	onConnect()	INTERNAL:
void	onDisconnect()	INTERNAL:
protected Object	select(Accessor accessor, AbstractSession writeSession, String seqName, Integer size)	INTERNAL:
void	setSelectQuery(ValueReadQuery query)	PUBLIC:
void	setShouldAcquireValueAfterInsert(boolean shouldAcquireValueAfterInsert)	PUBLIC:
void	setShouldSelectBeforeUpdate(boolean shouldSelectBeforeUpdate)	PUBLIC:
void	setShouldSkipUpdate(boolean shouldSkipUpdate)	PUBLIC:
void	setShouldUseTransaction(boolean shouldUseTransaction)	PUBLIC:
void	setUpdateQuery(DataModifyQuery query)	PUBLIC:
boolean	shouldAcquireValueAfterInsert()	PUBLIC:
boolean	shouldSelectBeforeUpdate()	PUBLIC:
boolean	shouldSkipUpdate()	PUBLIC:
boolean	shouldUseTransaction()	PUBLIC:
protected void	update(Accessor accessor, AbstractSession writeSession, String seqName, Number sizeOrNewValue)	INTERNAL:
protected Number	updateAndSelectSequence(Accessor accessor, AbstractSession writeSession, String seqName, int size)	INTERNAL:

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

createVector, createVectorAtNextVal, 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, isTable, isUnaryTable, onConnect, onDisconnect, setDatasourcePlatform, setName, setPreallocationSize, setQualifier, setShouldAlwaysOverrideExistingValue, shouldAlwaysOverrideExistingValue, shouldAlwaysOverrideExistingValue, shouldUsePreallocation, toString, verifyPlatform

Methods inherited from class java.lang.Object

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

Field Detail

selectQuery

protected ValueReadQuery selectQuery

updateQuery

protected DataModifyQuery updateQuery

shouldAcquireValueAfterInsert

protected boolean shouldAcquireValueAfterInsert

shouldUseTransaction

protected boolean shouldUseTransaction

shouldSkipUpdate

protected boolean shouldSkipUpdate

shouldSelectBeforeUpdate

protected boolean shouldSelectBeforeUpdate

wasSelectQueryCreated

protected boolean wasSelectQueryCreated

wasUpdateQueryCreated

protected boolean wasUpdateQueryCreated

Constructor Detail

QuerySequence

public QuerySequence()

QuerySequence

public QuerySequence(String name)

Create a new sequence with the name.

QuerySequence

public QuerySequence(String name,
                     int size)

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

QuerySequence

public QuerySequence(String name,
                     int size,
                     int initialValue)

QuerySequence

public QuerySequence(boolean shouldAcquireValueAfterInsert,
                     boolean shouldUseTransaction)

QuerySequence

public QuerySequence(String name,
                     boolean shouldAcquireValueAfterInsert,
                     boolean shouldUseTransaction)

QuerySequence

public QuerySequence(String name,
                     int size,
                     boolean shouldAcquireValueAfterInsert,
                     boolean shouldUseTransaction)

QuerySequence

public QuerySequence(String name,
                     int size,
                     int initialValue,
                     boolean shouldAcquireValueAfterInsert,
                     boolean shouldUseTransaction)

Method Detail

equals

public boolean equals(Object obj)

Overrides:

equals in class Sequence

hashCode

public int hashCode()

Overrides:

hashCode in class Sequence

shouldAcquireValueAfterInsert

public boolean shouldAcquireValueAfterInsert()

PUBLIC:

Specified by:

shouldAcquireValueAfterInsert in class StandardSequence

setShouldAcquireValueAfterInsert

public void setShouldAcquireValueAfterInsert(boolean shouldAcquireValueAfterInsert)

PUBLIC:

shouldUseTransaction

public boolean shouldUseTransaction()

PUBLIC:

Specified by:

shouldUseTransaction in class StandardSequence

setShouldUseTransaction

public void setShouldUseTransaction(boolean shouldUseTransaction)

PUBLIC:

setSelectQuery

public void setSelectQuery(ValueReadQuery query)

PUBLIC:

getSelectQuery

public ValueReadQuery getSelectQuery()

PUBLIC:

setUpdateQuery

public void setUpdateQuery(DataModifyQuery query)

PUBLIC:

getUpdateQuery

public DataModifyQuery getUpdateQuery()

PUBLIC:

setShouldSkipUpdate

public void setShouldSkipUpdate(boolean shouldSkipUpdate)

PUBLIC:

shouldSkipUpdate

public boolean shouldSkipUpdate()

PUBLIC:

setShouldSelectBeforeUpdate

public void setShouldSelectBeforeUpdate(boolean shouldSelectBeforeUpdate)

PUBLIC:

shouldSelectBeforeUpdate

public boolean shouldSelectBeforeUpdate()

PUBLIC:

buildSelectQuery

protected ValueReadQuery buildSelectQuery()

INTERNAL:

buildUpdateQuery

protected DataModifyQuery buildUpdateQuery()

INTERNAL:

buildSelectQuery

protected ValueReadQuery buildSelectQuery(String seqName,
                                          Integer size)

INTERNAL:

buildUpdateQuery

protected DataModifyQuery buildUpdateQuery(String seqName,
                                           Number sizeOrNewValue)

INTERNAL:

onConnect

public void onConnect()

INTERNAL:

Overrides:

onConnect in class StandardSequence

onDisconnect

public void onDisconnect()

INTERNAL:

Overrides:

onDisconnect in class StandardSequence

updateAndSelectSequence

protected Number updateAndSelectSequence(Accessor accessor,
                                         AbstractSession writeSession,
                                         String seqName,
                                         int size)

INTERNAL:

Specified by:

updateAndSelectSequence in class StandardSequence

select

protected Object select(Accessor accessor,
                        AbstractSession writeSession,
                        String seqName,
                        Integer size)

INTERNAL:

update

protected void update(Accessor accessor,
                      AbstractSession writeSession,
                      String seqName,
                      Number sizeOrNewValue)

INTERNAL:

createArguments

protected Vector createArguments(DatabaseQuery query,
                                 String seqName,
                                 Number sizeOrNewValue)

INTERNAL: