EntityMetadata (Oracle - Berkeley DB Java Edition API)
Date: 2014-12-16

com.sleepycat.persist.model

## Class EntityMetadata

- java.lang.Object
- - com.sleepycat.persist.model.EntityMetadata

- All Implemented Interfaces:
    Serializable

      public class EntityMetadata
      extends Object
      implements Serializable

  The metadata for a persistent entity class. An entity class may be specified with the `Entity` annotation.

  `EntityMetadata` objects are thread-safe. Multiple threads may safely call the methods of a shared `EntityMetadata` object.

  Author:
    Mark Hayes
  See Also:
    Serialized Form

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `EntityMetadata(String className, PrimaryKeyMetadata primaryKey, Map<String,SecondaryKeyMetadata> secondaryKeys)` Used by an `EntityModel` to construct entity metadata.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `equals(Object other)`
    `String` | `getClassName()` Returns the name of the entity class.
    `PrimaryKeyMetadata` | `getPrimaryKey()` Returns the primary key metadata for this entity.
    `Map<String,SecondaryKeyMetadata>` | `getSecondaryKeys()` Returns an unmodifiable map of key name to secondary key metadata, or an empty map if no secondary keys are defined for this entity.
    `int` | `hashCode()`

    - ### Methods inherited from class java.lang.Object

      `clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### EntityMetadata

          public EntityMetadata(String className,
                        PrimaryKeyMetadata primaryKey,
                        Map<String,SecondaryKeyMetadata> secondaryKeys)

      Used by an `EntityModel` to construct entity metadata.

  - ### Method Detail

    - #### getClassName

          public String getClassName()

      Returns the name of the entity class.

    - #### getPrimaryKey

          public PrimaryKeyMetadata getPrimaryKey()

      Returns the primary key metadata for this entity. Note that the primary key field may be declared in this class or in a subclass. This metadata may be specified using the `PrimaryKey` annotation.

    - #### getSecondaryKeys

          public Map<String,SecondaryKeyMetadata> getSecondaryKeys()

      Returns an unmodifiable map of key name to secondary key metadata, or an empty map if no secondary keys are defined for this entity. The returned map contains a mapping for each secondary key of this entity, including secondary keys declared in subclasses and superclasses. This metadata may be specified using `SecondaryKey` annotations.

    - #### equals

          public boolean equals(Object other)

      Overrides:
        `equals` in class `Object`

    - #### hashCode

          public int hashCode()

      Overrides:
        `hashCode` in class `Object`

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