EclipseLink 1.2.0, build 'v20091016-r5565' API Reference

org.eclipse.persistence.sequencing
Class QuerySequence

java.lang.Object
  extended by org.eclipse.persistence.sequencing.Sequence
      extended by org.eclipse.persistence.sequencing.StandardSequence
          extended by 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
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, size
 
Constructor Summary
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
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, shouldUsePreallocation, verifyPlatform
 
Methods inherited from class java.lang.Object
finalize, getClass, hashCode, notify, notifyAll, toString, 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:


EclipseLink 1.2.0, build 'v20091016-r5565' API Reference