- All Implemented Interfaces:
Serializable
,Comparable<FetchType>
Defines strategies for fetching data from the database.
- The
EAGER
strategy is a requirement on the persistence provider runtime that data must be eagerly fetched. - The
LAZY
strategy is a hint to the persistence provider runtime that data should be fetched lazily when it is first accessed. The implementation is permitted to eagerly fetch data for which theLAZY
strategy hint has been specified.
Example:
@Basic(fetch = LAZY)
protected String getName() { return name; }
- Since:
- 1.0
- See Also:
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Enum Constant Details
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LAZY
Data may be lazily fetched. -
EAGER
Data must be eagerly fetched.
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Constructor Details
-
FetchType
private FetchType()
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Method Details
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values
Returns an array containing the constants of this enum type, in the order they are declared.- Returns:
- an array containing the constants of this enum type, in the order they are declared
-
valueOf
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 nameNullPointerException
- if the argument is null
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