org.teiid.metadata

Enum FunctionMethod.Determinism

java.lang.Object

java.lang.Enum<FunctionMethod.Determinism>

org.teiid.metadata.FunctionMethod.Determinism

All Implemented Interfaces:

Serializable, Comparable<FunctionMethod.Determinism>

Enclosing class:

FunctionMethod

public static enum FunctionMethod.Determinism
extends Enum<FunctionMethod.Determinism>

DETERMINISTIC -> normal deterministic functions vdb -> lookup (however lookup values can be flushed at any time), current_database session -> env, user command -> command payload never -> rand, etc. Anything at a session level and above is treated as deterministic. This is not quite correct for lookup or env. Only in extremely rare circumstances would that be a problem. For now the commandPayload function is treated as a special case, like lookup, in that it is considered deterministic, but will be delayed in its evaluation until processing time.

Enum Constant Summary

Enum Constants

Enum Constant and Description
COMMAND_DETERMINISTIC
DETERMINISTIC
NONDETERMINISTIC
SESSION_DETERMINISTIC
USER_DETERMINISTIC
VDB_DETERMINISTIC

Method Summary

Methods

Modifier and Type	Method and Description
static FunctionMethod.Determinism	valueOf(String name) Returns the enum constant of this type with the specified name.
static FunctionMethod.Determinism[]	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

NONDETERMINISTIC

public static final FunctionMethod.Determinism NONDETERMINISTIC

COMMAND_DETERMINISTIC

public static final FunctionMethod.Determinism COMMAND_DETERMINISTIC

SESSION_DETERMINISTIC

public static final FunctionMethod.Determinism SESSION_DETERMINISTIC

USER_DETERMINISTIC

public static final FunctionMethod.Determinism USER_DETERMINISTIC

VDB_DETERMINISTIC

public static final FunctionMethod.Determinism VDB_DETERMINISTIC

DETERMINISTIC

public static final FunctionMethod.Determinism DETERMINISTIC

Method Detail

values

public static FunctionMethod.Determinism[] 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 (FunctionMethod.Determinism c : FunctionMethod.Determinism.values())
    System.out.println(c);

Returns:

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

valueOf

public static FunctionMethod.Determinism 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