Package ch.tocco.nice2.persist.core.api.query

Enum Class Query.Mode

java.lang.Object

java.lang.Enum<Query.Mode>

ch.tocco.nice2.persist.core.api.query.Query.Mode

All Implemented Interfaces:

Serializable, Comparable<Query.Mode>, Constable

Enclosing interface:

Query

public static enum Query.Mode
extends Enum<Query.Mode>

The execution mode of the query. Note that the mode is merely a hint. A backend may at any time choose to execute the query in another mode (e.g. because the desired mode is not available for the storage backend). Also note that lazy loading is usually very slow, while loading pages on demand is very fast. The performance impact of eager loading may very outweight the "cheap" on-demand loading of pages.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
EAGER	Load all data at execution time.
LAZY	Lazy loading: Load entities on demand.

Method Summary

Modifier and Type	Method	Description
static Query.Mode	valueOf(String name)	Returns the enum constant of this class with the specified name.
static Query.Mode[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

LAZY

public static final Query.Mode LAZY

Lazy loading: Load entities on demand.

EAGER

public static final Query.Mode EAGER

Load all data at execution time.

Method Details

values

public static Query.Mode[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

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

valueOf

public static Query.Mode valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified name

NullPointerException - if the argument is null