org.apache.ignite.internal.processors.query

Enum EnlistOperation

java.lang.Object

java.lang.Enum<EnlistOperation>

org.apache.ignite.internal.processors.query.EnlistOperation

All Implemented Interfaces:

Serializable, Comparable<EnlistOperation>

public enum EnlistOperation
extends Enum<EnlistOperation>

Operations on entries which could be performed during transaction. Operations are used during SQL statements execution, but does not define exact SQL statements semantics. It is better to treat them independently and having their own semantics.

Enum Constant Summary

Enum Constants

Enum Constant and Description
DELETE This operation deletes existing entry or does nothing if entry does not exist.
INSERT This operation creates entry if it does not exist or raises visible failure otherwise.
LOCK This operation locks existing entry protecting it from updates by other transactions or does notrhing if entry does not exist.
TRANSFORM This operation applies entry transformer.
UPDATE This operation modifies existing entry or does nothing if entry does not exist.
UPSERT This operation creates entry if it does not exist or modifies existing one otherwise.

Method Summary

Modifier and Type	Method and Description
GridCacheOperation	cacheOperation()
static @Nullable EnlistOperation	fromOrdinal(int ord)
boolean	isDeleteOrLock()
boolean	isInvoke()
boolean	noCreate() Indicates that an operation cannot create new row.
static EnlistOperation	valueOf(String name) Returns the enum constant of this type with the specified name.
static EnlistOperation[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

INSERT

public static final EnlistOperation INSERT

This operation creates entry if it does not exist or raises visible failure otherwise.

UPSERT

public static final EnlistOperation UPSERT

This operation creates entry if it does not exist or modifies existing one otherwise.

UPDATE

public static final EnlistOperation UPDATE

This operation modifies existing entry or does nothing if entry does not exist.

DELETE

public static final EnlistOperation DELETE

This operation deletes existing entry or does nothing if entry does not exist.

LOCK

public static final EnlistOperation LOCK

This operation locks existing entry protecting it from updates by other transactions or does notrhing if entry does not exist.

TRANSFORM

public static final EnlistOperation TRANSFORM

This operation applies entry transformer.

Method Detail

values

public static EnlistOperation[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (EnlistOperation c : EnlistOperation.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static EnlistOperation valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

cacheOperation

public GridCacheOperation cacheOperation()

Returns:

Corresponding Cache operation.

isDeleteOrLock

public boolean isDeleteOrLock()

isInvoke

public boolean isInvoke()

noCreate

public boolean noCreate()

Indicates that an operation cannot create new row.

fromOrdinal

@Nullable
public static @Nullable EnlistOperation fromOrdinal(int ord)

Parameters:

ord - Ordinal value.

Returns:

Enum value.