JPA Enum

FetchType

java.lang.Object
  ∟ java.lang.Enum<javax.persistence.FetchType>
    ∟ javax.persistence.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 the LAZY strategy hint has been specified. 
Example:
   @Basic(fetch=LAZY)
   protected String getName() { return name; }
 
See Also:
Basic
ElementCollection
ManyToMany
OneToMany
ManyToOne
OneToOne
Since:
JPA 1.0
Enum Constants
EAGER
 Defines that data must be eagerly fetched.
 
Since:
JPA 1.0
LAZY
 Defines that data can be lazily fetched.
 
Since:
JPA 1.0
Public Static Enum Methods:
 
 FetchType[] 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 (FetchType c : FetchType.values())
        System.out.println(c);
 
 
 
 Return: 
 an array containing the constants of this enum type, in the order they are declared 
 
 
 
 FetchType 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. 
 
 
 Return: 
 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 
 
 
Method inherited from class java.lang.Enum
compareTo, compareTo, describeConstable, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf
Method inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait