2 | coalesce(x, y)Method javax.persistence.criteria.CriteriaBuilder Expression<Y> coalesce( Expression<?> x, Expression<?> y ) Create an expression that returns null if all its arguments evaluate to null, and the value of the first non-null argument otherwise. Parameters: x - expression y - expression Returns: coalesce expression Since: JPA 2.0 |
2 | javax.persistence.metamodel.SingularAttribute indicating whether the attribute is an id Since: JPA 2.0 boolean isOptional() Can the attribute be null. Can the attribute be null. Returns: boolean indicating whether the attribute can be null Since: JPA 2 |
2 | javax.persistence.spi.PersistenceProvider - a Map of integration-level properties for use by the persistence provider (may be null ... the persistence.xml (and may be null if no properties are specified). Returns: EntityManagerFactory for the persistence unit, or null if the provider is not the right provider Since: JPA 1.0 ProviderUtil |
2 | Throwable(cause)Constructor java.lang.Throwable Throwable( Throwable cause ) Constructs a new throwable with the specified cause and a detail message of (cause==null ? null : cause.toString()) (which typically ... ). (A null value is permitted, and indicates that the cause is nonexistent or unknown.) Since: Java 1.4 |
2 | nullLiteral(resultClass)Method javax.persistence.criteria.CriteriaBuilder Expression<T> nullLiteral( Class<T> resultClass ) Create an expression for a null literal with the given type. Parameters: resultClass - type of the null literal Returns: null expression literal Since: JPA 2.0 |
2 | transform(loader, className, classBeingRedefined, protectionDomain, classfileBuffer) of the class to be transformed, may be null if the bootstrap loader className - the name of the class ... - if this is a redefine, the class being redefined, otherwise null protectionDomain - the protection domain ... - must not be modified Returns: a well-formed class file buffer (the result of the transform), or null |
2 | javax.persistence.spi.ClassTransformer, may be null if the bootstrap loader className - the name of the class in the internal form of fully ... , otherwise null protectionDomain - the protection domain of the class being defined or redefined ... : a well-formed class file buffer (the result of the transform), or null if no transform is performed Throws |
0 | javax.jdo.annotations.Column allowsNull Whether the column allows null values to be inserted. Whether the column allows null values to be inserted. Returns: whether the column allows null values to be inserted Default value |
0 | jdoReplaceStateManager(sm) already owned by a StateManager. If the parameter is null, and the StateManager approves the change, then the jdoFlags field will be reset to READ_WRITE_OK. If the parameter is not null, and the security ... - The StateManager which will own this instance, or null to reset the instance to transient state |
0 | Embedded.nullIndicatorValueAnnotation Element javax.jdo.annotations.Embedded String nullIndicatorValue The value in the null column to interpret the object as being null. Returns: the null indicator value Default value: "" Since: JDO 2.1 |
