io.nflow.engine.internal.storage.db

Class MySQLVariants

java.lang.Object

io.nflow.engine.internal.storage.db.MySQLVariants

All Implemented Interfaces:

SQLVariants

public class MySQLVariants
extends Object
implements SQLVariants

SQL variants optimized for MySQL.

Constructor Summary

Constructors

Constructor and Description
MySQLVariants()

Method Summary

Modifier and Type	Method and Description
String	actionType() Returns SQL representing the action type parameter.
String	castToText() Returns empty string as casting to text is not needed in MySQL.
String	currentTimePlusSeconds(int seconds) Returns SQL representing the current database time plus given amount of seconds.
boolean	hasUpdateableCTE() Returns false as MySQL does not support updateable CTEs.
boolean	hasUpdateReturning() Returns false as MySQL does not support update returning clause.
String	limit(String query, long limit) Returns SQL for a query with a limit of results.
int	longTextType() Returns the SQL type for long text.
String	nextActivationUpdate() Returns SQL representing the next activation time of the workflow instance.
boolean	useBatchUpdate() Returns true as MySQL suppports batch updates.
String	workflowStatus() Returns SQL representing the workflow instance status parameter.
String	workflowStatus(WorkflowInstance.WorkflowInstanceStatus status) Returns the SQL representation for given workflow instance status.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.nflow.engine.internal.storage.db.SQLVariants

dateLtEqDiff, forUpdateInnerSelect, getDateTime, getTimestamp, setDateTime, toTimestampObject, tuneTimestampForDb

Constructor Detail

MySQLVariants

public MySQLVariants()

Method Detail

currentTimePlusSeconds

public String currentTimePlusSeconds(int seconds)

Returns SQL representing the current database time plus given amount of seconds.

Specified by:

currentTimePlusSeconds in interface SQLVariants

hasUpdateReturning

public boolean hasUpdateReturning()

Returns false as MySQL does not support update returning clause.

Specified by:

hasUpdateReturning in interface SQLVariants

hasUpdateableCTE

public boolean hasUpdateableCTE()

Returns false as MySQL does not support updateable CTEs.

Specified by:

hasUpdateableCTE in interface SQLVariants

nextActivationUpdate

public String nextActivationUpdate()

Returns SQL representing the next activation time of the workflow instance.

Specified by:

nextActivationUpdate in interface SQLVariants

workflowStatus

public String workflowStatus(WorkflowInstance.WorkflowInstanceStatus status)

Returns the SQL representation for given workflow instance status.

Specified by:

workflowStatus in interface SQLVariants

workflowStatus

public String workflowStatus()

Returns SQL representing the workflow instance status parameter.

Specified by:

workflowStatus in interface SQLVariants

actionType

public String actionType()

Returns SQL representing the action type parameter.

Specified by:

actionType in interface SQLVariants

castToText

public String castToText()

Returns empty string as casting to text is not needed in MySQL.

Specified by:

castToText in interface SQLVariants

limit

public String limit(String query,
                    long limit)

Returns SQL for a query with a limit of results.

Specified by:

limit in interface SQLVariants

longTextType

public int longTextType()

Returns the SQL type for long text.

Specified by:

longTextType in interface SQLVariants

useBatchUpdate

public boolean useBatchUpdate()

Returns true as MySQL suppports batch updates.

Specified by:

useBatchUpdate in interface SQLVariants