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disjunction()

Method javax.persistence.criteria.CriteriaBuilder Predicate disjunction() Create a disjunction (with zero disjuncts). A disjunction with zero disjuncts is false. Returns: or predicate Since: JPA 2.0
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javax.persistence.metamodel.EntityType

attribute. Returns true for a simple id or embedded id; returns false for an idclass. Returns: boolean
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hasSingleIdAttribute()

Method javax.persistence.metamodel.IdentifiableType boolean hasSingleIdAttribute() Whether the identifiable type has a single id attribute. Returns true for a simple id or embedded id; returns false for an idclass. Returns: boolean indicating whether the identifiable type has a single id attribute Since: JPA 2.0
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isPersistent(pc)

Method javax.jdo.spi.StateInterrogation Boolean isPersistent( Object pc ) Tests whether the parameter instance is persistent. Instances that represent persistent objects in the data store return Boolean.TRUE. Instances known by the implementation to be non-persistent return Boolean.FALSE. Instances
0

isNew(pc)

Method javax.jdo.spi.StateInterrogation Boolean isNew( Object pc ) Tests whether the parameter instance has been newly made persistent. Instances that have been made persistent in the current transaction return Boolean.TRUE. Instances known by the implementation to be non-new return Boolean.FALSE
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isTransactional(pc)

.FALSE. Instances not recognized by the implementation return null. Parameters: pc - the instance
0

isDeleted(pc)

Method javax.jdo.spi.StateManager boolean isDeleted( PersistenceCapable pc ) Tests whether this object has been deleted. Instances that have been deleted in the current transaction return true. Transient instances return false. Parameters: pc - the calling PersistenceCapable instance Returns: true
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isDeleted(pc)

Method javax.jdo.spi.StateInterrogation Boolean isDeleted( Object pc ) Tests whether the parameter instance has been deleted. Instances that have been deleted in the current transaction return Boolean.TRUE. Instances known by the implementation to be non-deleted return Boolean.FALSE. Instances not
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isDirty(pc)

to be non-dirty return Boolean.FALSE. Instances not recognized by the implementation return null
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isDetached(pc)

Method javax.jdo.spi.StateInterrogation Boolean isDetached( Object pc ) Tests whether the parameter instance is detached. Instances that are detached return Boolean.TRUE. Instances known by the implementation to be non-detached return Boolean.FALSE. Instances not recognized by the implementation

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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