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. These implementations are Object Relational Mapping (ORM) tools. The mapping bridges between

> From any map type to any map type as long as the keys and values are convertible (e.g. from

_Class__Object_Map_">find(MyEntity2.class, Long.valueOf(1),      Collections ... "> em.Map_">find(MyEntity2.class, Long

Instances of user defined persistable classes (entity classes, mapped super classes and embeddable classes) are represented in JPQL by the following types of expressions: maps and values of simple types (number, boolean, string, date). For a path expression

the mapping of a Basic (whether explicit or default) property or field or Id property or field. May be applied to an entity that extends a mapped superclass or to an embedded field or property to override a basic mapping or id mapping defined by

javax.persistence.metamodel">MapAttribute<X,K,V>  map) Create a path corresponding to the referenced map-valued attribute. map-valued attribute.

="Interface in javax.persistence.metamodel">MapAttribute<X,K,V>  map) Create a path corresponding to the referenced map-valued attribute ... corresponding to the referenced map-valued attribute.

>2</load-on-startup> </servlet> <servlet-mapping> <servlet-name ... -mapping> <session-config> <session-timeout> 30 </session

;servlet-mapping> <servlet-name>spring</servlet-name> <url-pattern>*.html</url-pattern> </servlet-mapping> <session-config> <session-timeout

>List and Map. java.math.BigInteger and java.math ... > and Map) cannot refer to an unsupported collection, or a collection that contains objects