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Feature
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General Features
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Datastore Identity
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Application Identity
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Nondurable Identity [1]
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Compound Identity
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Nontransactional
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ACID Transactions
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Versioned objects
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Optimistic Checks
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Fetch Plan control
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Native Connection access (JDO)
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Encryption of data [7]
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Backed object wrappers [2]
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Cascade Persist
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Cascade Update
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Cascade Delete
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Schema Evolution - New fields [3]
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Value Generation
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native(JDO)/auto(JPA)
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increment(JDO)/table(JPA)
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identity(JDO/JPA)
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sequence(JDO/JPA)
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uuid-hex(JDO)
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uuid-string(JDO)
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uuid
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timestamp
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timestamp-value
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max
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O/R Mapping
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Indexes
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Unique Keys
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Foreign Keys
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Primary Keys
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Inheritance(complete-table) [4]
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Inheritance(new-table)
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Inheritance(subclass-table)
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Inheritance(superclass-table)
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Discriminators
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Secondary Tables
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Join Tables
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Embedded PC
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Embedded Collection
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Embedded Map
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Embedded Array
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Serialised PC
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Serialised Collection
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Serialised Map
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1-1
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1-N
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M-N
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SchemaTool
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Multitenancy by discriminator
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Field Types
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Primitives, Wrappers
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java.lang.String etc
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java.lang.Enum
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java.util.Date etc
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java.lang.Object
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java.io.Serializable
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java.util.Collection
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java.util.Map
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Arrays
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Interfaces
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Type Converters
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Queries
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JDOQL evaluated in memory
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JDOQL evaluated in datastore [5]
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JDOQL of candidate interface
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JDOQL Polymorphic queries
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JPQL evaluated in memory
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JPQL evaluated in datastore [5]
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SQL [6]
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Stored Procedures
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