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JDO Doc
2

Key.generateForeignKey

Annotation Element javax.jdo.annotations.Key String generateForeignKey Generate or assume a foreign key constraint exists on the column or columns associated with this join. Specify "true" or "false". Returns: whether to generate or assume a foreign key constraint Default value: "" Since: JDO 2.1
Forum
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locks on pure query activities

" password="true" />
JDO Doc
2

makeTransient(pc, useFetchPlan)

Method javax.jdo.PersistenceManager void makeTransient(   Object pc,   boolean useFetchPlan ) Make an instance transient, removing it from management by this PersistenceManager. If the useFetchPlan parameter is false, this method behaves exactly as makeTransient(Object pc). The affected instance(s
JDO Doc
2

makeTransientAll(pcs, useFetchPlan)

Method javax.jdo.PersistenceManager void makeTransientAll(   Object[] pcs,   boolean useFetchPlan ) Make instances transient, removing them from management by this PersistenceManager. If the useFetchPlan parameter is false, this method behaves exactly as makeTransientAll(Object[] pcs). The affected
JDO Doc
2

makeTransientAll(pcs, useFetchPlan)

Method javax.jdo.PersistenceManager void makeTransientAll(   Collection pcs,   boolean useFetchPlan ) Make instances transient, removing them from management by this PersistenceManager. If the useFetchPlan parameter is false, this method behaves exactly as makeTransientAll(Collection pcs
JDO Doc
2

makeTransientAll(useFetchPlan, pcs)

Method javax.jdo.PersistenceManager void makeTransientAll(   boolean useFetchPlan,   Object... pcs ) Make instances transient, removing them from management by this PersistenceManager. If the useFetchPlan parameter is false, this method behaves exactly as makeTransientAll(Object[] pcs
JPA Doc
2

ManyToOne.optional

Annotation Element javax.persistence.ManyToOne boolean optional (Optional) Whether the association is optional. If set to false then a non-null relationship must always exist. Default value: true Since: JPA 1.0
JPA Doc
2

MapKeyColumn.nullable

Annotation Element javax.persistence.MapKeyColumn boolean nullable (Optional) Whether the database column is nullable. Default value: false Since: JPA 2.0
JPA Doc
2

MapKeyColumn.unique

addition to any constraint entailed by primary key mapping and to constraints specified at the table level. Default value: false Since: JPA 2.0
JPA Doc
2

MapKeyJoinColumn.nullable

Annotation Element javax.persistence.MapKeyJoinColumn boolean nullable (Optional) Whether the foreign key column is nullable. Default value: false Since: JPA 2.0