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JPA NamedQuery and NamedQueries annotations

The @NamedQuery and @NamedQueries annotations are used to define one or more JPQL queries. These queries will be associated with that particular entity.

@NamedQuery Example:

@Entity
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JPA ManyToMany annotation

The @ManyToMany annotation is used to implement Many-to-Many relationship. Two entities are said to be in Many-to-Many relationship if many occurrence of entity belongs to many occurrence … Read More

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JPA ManyToOne annotation

The @ManyToOne annotation is used to implement Many-to-One relationship. Two entities are said to be in Many-to-One relationship if one entity belongs to many occurrence of other … Read More

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JPA OneToMany annotation

The @OneToMany annotation is used to implement One-to-Many relationship. Two entities are said to be in One-to-Many relationship if one entity has many occurrence in other entity.… Read More

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JPA OneToOne annotation

The @OneToOne annotation is used to implement One-to-One relationship. Two entities are said to be in One-to-One relationship if one entity has only one occurrence in other … Read More

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JPA Temporal annotation

The @Temporal annotation is specified for Date and Calendar type persistent. It can have one of following three values DATE, TIME, and TIMESTAMP. Default is TIMESTAMP.

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JPA Transient annotation

It is used to annotate a property or field of an entity class, mapped superclass, or embeddable class which is not persistent.

Example:

@Entity
public class
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JPA column annotation

The Column annotation is used to specify the mapped column for a persistent property or field. If no Column annotation is specified, the default value will be … Read More

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JPA Table annotation

The Table annotation is used to specify the primary table for the annotated entity. Additional tables may be specified using SecondaryTable or SecondaryTables annotation.
Example:

@Entity
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