QuerySequence (EclipseLink 2.6.4, API Reference)

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

All Implemented Interfaces:

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

Method Summary

Methods
Modifier and Type	Method and Description
`protected ValueReadQuery`	`buildSelectQuery()` INTERNAL:
`protected ValueReadQuery`	`buildSelectQuery(java.lang.String seqName, java.lang.Integer size)` INTERNAL:
`protected DataModifyQuery`	`buildUpdateQuery()` INTERNAL:
`protected DataModifyQuery`	`buildUpdateQuery(java.lang.String seqName, java.lang.Number sizeOrNewValue)` INTERNAL:
`protected java.util.Vector`	`createArguments(DatabaseQuery query, java.lang.String seqName, java.lang.Number sizeOrNewValue)` INTERNAL:
`boolean`	`equals(java.lang.Object obj)`
`ValueReadQuery`	`getSelectQuery()` PUBLIC:
`DataModifyQuery`	`getUpdateQuery()` PUBLIC:
`void`	`onConnect()` INTERNAL:
`void`	`onDisconnect()` INTERNAL:
`protected java.lang.Object`	`select(org.eclipse.persistence.internal.databaseaccess.Accessor accessor, org.eclipse.persistence.internal.sessions.AbstractSession writeSession, java.lang.String seqName, java.lang.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(org.eclipse.persistence.internal.databaseaccess.Accessor accessor, org.eclipse.persistence.internal.sessions.AbstractSession writeSession, java.lang.String seqName, java.lang.Number sizeOrNewValue)` INTERNAL:
`protected java.lang.Number`	`updateAndSelectSequence(org.eclipse.persistence.internal.databaseaccess.Accessor accessor, org.eclipse.persistence.internal.sessions.AbstractSession writeSession, java.lang.String seqName, int size)` INTERNAL:

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, isTable, 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

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

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

QuerySequence

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

QuerySequence

public QuerySequence(boolean shouldAcquireValueAfterInsert,
             boolean shouldUseTransaction)

QuerySequence

public QuerySequence(java.lang.String name,
             boolean shouldAcquireValueAfterInsert,
             boolean shouldUseTransaction)

QuerySequence

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

QuerySequence

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

Method Detail

equals

public boolean equals(java.lang.Object obj)

Overrides:: equals 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(java.lang.String seqName,
                              java.lang.Integer size)

INTERNAL:

buildUpdateQuery

protected DataModifyQuery buildUpdateQuery(java.lang.String seqName,
                               java.lang.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 java.lang.Number updateAndSelectSequence(org.eclipse.persistence.internal.databaseaccess.Accessor accessor,
                                       org.eclipse.persistence.internal.sessions.AbstractSession writeSession,
                                       java.lang.String seqName,
                                       int size)

INTERNAL:

Specified by:: updateAndSelectSequence in class StandardSequence

select

protected java.lang.Object select(org.eclipse.persistence.internal.databaseaccess.Accessor accessor,
                      org.eclipse.persistence.internal.sessions.AbstractSession writeSession,
                      java.lang.String seqName,
                      java.lang.Integer size)

INTERNAL:

update

protected void update(org.eclipse.persistence.internal.databaseaccess.Accessor accessor,
          org.eclipse.persistence.internal.sessions.AbstractSession writeSession,
          java.lang.String seqName,
          java.lang.Number sizeOrNewValue)

INTERNAL:

createArguments

protected java.util.Vector createArguments(DatabaseQuery query,
                               java.lang.String seqName,
                               java.lang.Number sizeOrNewValue)

INTERNAL:

Class QuerySequence

Field Summary

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

Constructor Summary

Method Summary

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

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

Methods inherited from class java.lang.Object

Field Detail

selectQuery

updateQuery

shouldAcquireValueAfterInsert

shouldUseTransaction

shouldSkipUpdate

shouldSelectBeforeUpdate

wasSelectQueryCreated

wasUpdateQueryCreated

Constructor Detail

QuerySequence

QuerySequence

QuerySequence

QuerySequence

QuerySequence

QuerySequence

QuerySequence

QuerySequence

Method Detail

equals

shouldAcquireValueAfterInsert

setShouldAcquireValueAfterInsert

shouldUseTransaction

setShouldUseTransaction

setSelectQuery

getSelectQuery

setUpdateQuery

getUpdateQuery

setShouldSkipUpdate

shouldSkipUpdate

setShouldSelectBeforeUpdate

shouldSelectBeforeUpdate

buildSelectQuery

buildUpdateQuery

buildSelectQuery

buildUpdateQuery

onConnect

onDisconnect

updateAndSelectSequence

select

update

createArguments