org.eclipse.persistence.internal.xr

Class QueryOperation

java.lang.Object

org.eclipse.persistence.internal.xr.Operation

org.eclipse.persistence.internal.xr.QueryOperation

Direct Known Subclasses:

BatchQueryOperation

public class QueryOperation
extends Operation

INTERNAL:An XR QueryOperation is an executable representation of a SELECT operation on the database.

Since:

EclipseLink 1.x

Author:

Mike Norman - michael.norman@oracle.com

Field Summary

Fields

Modifier and Type	Field and Description
static String	ORACLEOPAQUE_STR
static String	ORACLESQLXML_STR

Constructor Summary

Constructors

Constructor and Description
QueryOperation()

Method Summary

Modifier and Type	Method and Description
Object	createSimpleXMLFormat(XRServiceAdapter xrService, Object value)
QueryHandler	getQueryHandler()
Result	getResult()
QName	getResultType()
boolean	hasResponse()
void	initialize(XRServiceAdapter xrService)
Object	invoke(XRServiceAdapter xrService, Invocation invocation) Execute SELECT operation on the database
boolean	isAttachment()
boolean	isCollection()
boolean	isSimpleXMLFormat()
boolean	isUserDefined()
void	setQueryHandler(QueryHandler queryHandler)
void	setResult(Result result)
void	setUserDefined(boolean userDefined)
void	validate(XRServiceAdapter xrService)

Methods inherited from class org.eclipse.persistence.internal.xr.Operation

getName, getParameters, setName

Methods inherited from class java.lang.Object

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

Field Detail

ORACLESQLXML_STR

public static final String ORACLESQLXML_STR

See Also:

Constant Field Values

ORACLEOPAQUE_STR

public static final String ORACLEOPAQUE_STR

See Also:

Constant Field Values

Constructor Detail

QueryOperation

public QueryOperation()

Method Detail

getResult

public Result getResult()

setResult

public void setResult(Result result)

getQueryHandler

public QueryHandler getQueryHandler()

setQueryHandler

public void setQueryHandler(QueryHandler queryHandler)

isUserDefined

public boolean isUserDefined()

setUserDefined

public void setUserDefined(boolean userDefined)

isCollection

public boolean isCollection()

Overrides:

isCollection in class Operation

isSimpleXMLFormat

public boolean isSimpleXMLFormat()

isAttachment

public boolean isAttachment()

getResultType

public QName getResultType()

hasResponse

public boolean hasResponse()

Overrides:

hasResponse in class Operation

validate

public void validate(XRServiceAdapter xrService)

Overrides:

validate in class Operation

initialize

public void initialize(XRServiceAdapter xrService)

Overrides:

initialize in class Operation

invoke

public Object invoke(XRServiceAdapter xrService,
                     Invocation invocation)

Execute SELECT operation on the database

Specified by:

invoke in class Operation

Parameters:

xrService - parent XRService that owns this Operation

invocation - contains runtime argument values to be bound to the list of Parameter's.

Returns:

result - the result of the underlying SELECT operation on the database, or null.

See Also:

Operation}

createSimpleXMLFormat

public Object createSimpleXMLFormat(XRServiceAdapter xrService,
                                    Object value)