org.eclipse.persistence.internal.xr

Class BatchQueryOperation

java.lang.Object

org.eclipse.persistence.internal.xr.Operation

org.eclipse.persistence.internal.xr.QueryOperation

org.eclipse.persistence.internal.xr.BatchQueryOperation

public class BatchQueryOperation
extends QueryOperation

For use with a batch SQL query, i.e. two or more SQL statements that are to be executed against the database in order. The result will be either 0 (success) or 1 (failure). Note that if a statement fails, i.e. an exception is thrown upon executing a given SQL statement, none of the remaining statements are executed. Warning: the SQL is assumed to be valid and well formed, and no roll back or any type of error handling is performed.

Field Summary

Fields inherited from class org.eclipse.persistence.internal.xr.QueryOperation

ORACLEOPAQUE_STR, ORACLESQLXML_STR

Constructor Summary

Constructors

Constructor and Description
BatchQueryOperation()

Method Summary

Modifier and Type	Method and Description
java.util.List<java.lang.String>	getBatchSql() Return the List of SQL statements to be executed for this operation.
void	initialize(XRServiceAdapter xrService) The initialize method will add an XMLDesctriptor for org.eclipse.persistence.internal.xr.ValueObject to the OX project.
java.lang.Object	invoke(XRServiceAdapter xrService, Invocation invocation) Invoke the SQL statements in order against the database.
void	setBatchSql(java.util.List<java.lang.String> batchSql) Set the List of SQL statements to be executed for this operation.
void	validate(XRServiceAdapter xrService) No validation can be done for a batch query operation.

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

createSimpleXMLFormat, getQueryHandler, getResult, getResultType, hasResponse, isAttachment, isCollection, isSimpleXMLFormat, isUserDefined, setQueryHandler, setResult, setUserDefined

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

Constructor Detail

BatchQueryOperation

public BatchQueryOperation()

Method Detail

getBatchSql

public java.util.List<java.lang.String> getBatchSql()

Return the List of SQL statements to be executed for this operation.

setBatchSql

public void setBatchSql(java.util.List<java.lang.String> batchSql)

Set the List of SQL statements to be executed for this operation.

invoke

public java.lang.Object invoke(XRServiceAdapter xrService,
                               Invocation invocation)

Invoke the SQL statements in order against the database. The returned ValueOject will hold either 0 (success) or 1 (failure).

Overrides:

invoke in class QueryOperation

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}

validate

public void validate(XRServiceAdapter xrService)

No validation can be done for a batch query operation.

Overrides:

validate in class QueryOperation

initialize

public void initialize(XRServiceAdapter xrService)

The initialize method will add an XMLDesctriptor for org.eclipse.persistence.internal.xr.ValueObject to the OX project. This class is used to hold the result of the batch SQL execution.

Overrides:

initialize in class QueryOperation