com.gpudb.protocol

Class UpdateRecordsRequest.Options

java.lang.Object

com.gpudb.protocol.UpdateRecordsRequest.Options

Enclosing class:

UpdateRecordsRequest<T>

public static final class UpdateRecordsRequest.Options
extends Object

Optional parameters.

• GLOBAL_EXPRESSION: An optional global expression to reduce the search space of the predicates listed in expressions.
• BYPASS_SAFETY_CHECKS: When set to 'true', all predicates are available for primary key updates. Keep in mind that it is possible to destroy data in this case, since a single predicate may match multiple objects (potentially all of records of a table), and then updating all of those records to have the same primary key will, due to the primary key uniqueness constraints, effectively delete all but one of those updated records. Supported values:
  • TRUE
  • FALSE
  The default value is FALSE.
• UPDATE_ON_EXISTING_PK: Can be used to customize behavior when the updated primary key value already exists, as described in GPUdb.insertRecords(InsertRecordsRequest). Supported values:
  • TRUE
  • FALSE
  The default value is FALSE.
• RECORD_ID: ID of a single record to be updated (returned in the call to GPUdb.insertRecords(InsertRecordsRequest) or GPUdb.getRecordsFromCollection(Object, GetRecordsFromCollectionRequest)).

A set of string constants for the parameter options.

Field Summary

Fields

Modifier and Type	Field and Description
static String	BYPASS_SAFETY_CHECKS When set to 'true', all predicates are available for primary key updates.
static String	FALSE
static String	GLOBAL_EXPRESSION An optional global expression to reduce the search space of the predicates listed in expressions.
static String	RECORD_ID ID of a single record to be updated (returned in the call to GPUdb.insertRecords(InsertRecordsRequest) or GPUdb.getRecordsFromCollection(Object, GetRecordsFromCollectionRequest)).
static String	TRUE
static String	UPDATE_ON_EXISTING_PK Can be used to customize behavior when the updated primary key value already exists, as described in GPUdb.insertRecords(InsertRecordsRequest).

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

GLOBAL_EXPRESSION

public static final String GLOBAL_EXPRESSION

An optional global expression to reduce the search space of the predicates listed in expressions.

See Also:

Constant Field Values

BYPASS_SAFETY_CHECKS

public static final String BYPASS_SAFETY_CHECKS

When set to 'true', all predicates are available for primary key updates. Keep in mind that it is possible to destroy data in this case, since a single predicate may match multiple objects (potentially all of records of a table), and then updating all of those records to have the same primary key will, due to the primary key uniqueness constraints, effectively delete all but one of those updated records. Supported values:

• TRUE
• FALSE

The default value is FALSE.

See Also:

Constant Field Values

TRUE

public static final String TRUE

See Also:

Constant Field Values

FALSE

public static final String FALSE

See Also:

Constant Field Values

UPDATE_ON_EXISTING_PK

public static final String UPDATE_ON_EXISTING_PK

Can be used to customize behavior when the updated primary key value already exists, as described in GPUdb.insertRecords(InsertRecordsRequest). Supported values:

• TRUE
• FALSE

The default value is FALSE.

See Also:

Constant Field Values

RECORD_ID

public static final String RECORD_ID

ID of a single record to be updated (returned in the call to GPUdb.insertRecords(InsertRecordsRequest) or GPUdb.getRecordsFromCollection(Object, GetRecordsFromCollectionRequest)).

See Also:

Constant Field Values