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## org.hibernate.type
Class ImmutableType

    java.lang.Object
      org.hibernate.type.AbstractType
          org.hibernate.type.NullableType
              org.hibernate.type.ImmutableType

All Implemented Interfaces:
  Serializable, Type

Direct Known Subclasses:
  AdaptedImmutableType, BigDecimalType, BigIntegerType, ClassType, CurrencyType, LocaleType, PrimitiveType, StringType, TextType, TimeZoneType

    public abstract class ImmutableType

extends NullableType

Superclass of nullable immutable types.

Author:
  Gavin King
See Also:
  Serialized Form

Constructor Summary
`ImmutableType()`

Method Summary
`Object` | `deepCopy(Object value, EntityMode entityMode, SessionFactoryImplementor factory)` Return a deep copy of the persistent state, stopping at entities and at collections.
`boolean` | `isMutable()` Are objects of this type mutable.
`Object` | `replace(Object original, Object target, SessionImplementor session, Object owner, Map copyCache)` During merge, replace the existing (target) value in the entity we are merging to with a new (original) value from the detached entity we are merging.

Methods inherited from class org.hibernate.type.NullableType
`fromStringValue, fromXMLNode, fromXMLString, get, getColumnSpan, isDirty, isEqual, isEqual, nullSafeGet, nullSafeGet, nullSafeGet, nullSafeGet, nullSafeSet, nullSafeSet, nullSafeSet, nullSafeToString, set, setToXMLNode, sqlType, sqlTypes, toColumnNullness, toLoggableString, toString, toXMLString`

Methods inherited from class org.hibernate.type.AbstractType
`assemble, beforeAssemble, compare, disassemble, getHashCode, getHashCode, getSemiResolvedType, hydrate, isAnyType, isAssociationType, isCollectionType, isComponentType, isDirty, isEntityType, isEqual, isModified, isSame, isXMLElement, replace, replaceNode, resolve, semiResolve`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface org.hibernate.type.Type
`getName, getReturnedClass`

Constructor Detail

### ImmutableType

    public ImmutableType()

Method Detail

### deepCopy

    public final Object deepCopy(Object value,
                                 EntityMode entityMode,
                                 SessionFactoryImplementor factory)

  Description copied from interface: `Type`
  Return a deep copy of the persistent state, stopping at entities and at collections.

  Parameters:
    `value` - generally a collection element or entity field
  Returns:
    Object a copy

### isMutable

    public final boolean isMutable()

  Description copied from interface: `Type`
  Are objects of this type mutable. (With respect to the referencing object ... entities and collections are considered immutable because they manage their own internal state.)

  Returns:
    boolean

### replace

    public Object replace(Object original,
                          Object target,
                          SessionImplementor session,
                          Object owner,
                          Map copyCache)
                   throws HibernateException

  Description copied from interface: `Type`
  During merge, replace the existing (target) value in the entity we are merging to with a new (original) value from the detached entity we are merging. For immutable objects, or null values, it is safe to simply return the first parameter. For mutable objects, it is safe to return a copy of the first parameter. For objects with component values, it might make sense to recursively replace component values.

  Parameters:
    `original` - the value from the detached entity being merged
    `target` - the value in the managed entity
  Returns:
    the value to be merged
  Throws:
    `HibernateException`

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