当前页面: 在线文档首页 > Hibernate 2.1.8 正式版 API 英文文档

NullableType (Hibernate API Documentation) - Hibernate 2.1.8 正式版 API 英文文档

Overview  Package   Class  Use  Tree  Deprecated  Index  Help
PREV CLASS   NEXT CLASS	FRAMES    NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

---

net.sf.hibernate.type
Class NullableType

java.lang.Object
  net.sf.hibernate.type.AbstractType
      net.sf.hibernate.type.NullableType

All Implemented Interfaces:

Serializable, Type

Direct Known Subclasses:

ImmutableType, MutableType

---

public abstract class NullableType

extends AbstractType

Superclass of single-column nullable types.

Author:

Gavin King

See Also:

Serialized Form

---

Constructor Summary

NullableType()

 

Method Summary
Object	deepCopy(Object value)           Return a deep copy of the persistent state, stopping at entities and at collections.
abstract  Object	deepCopyNotNull(Object value)
Object	fromString(String xml)           Parse the XML representation of an instance.
abstract  Object	fromStringValue(String xml)
abstract  Object	get(ResultSet rs, String name)
int	getColumnSpan(Mapping session)           How many columns are used to persist this type.
Object	nullSafeGet(ResultSet rs, String name)
Object	nullSafeGet(ResultSet rs, String[] names)
Object	nullSafeGet(ResultSet rs, String[] names, SessionImplementor session, Object owner)           Retrieve an instance of the mapped class from a JDBC resultset.
Object	nullSafeGet(ResultSet rs, String name, SessionImplementor session, Object owner)           Retrieve an instance of the mapped class from a JDBC resultset.
void	nullSafeSet(PreparedStatement st, Object value, int index)
void	nullSafeSet(PreparedStatement st, Object value, int index, SessionImplementor session)           Write an instance of the mapped class to a prepared statement.
abstract  void	set(PreparedStatement st, Object value, int index)
abstract  int	sqlType()
int[]	sqlTypes(Mapping session)           Return the SQL type codes for the columns mapped by this type.
abstract  String	toString(Object value)
String	toString(Object value, SessionFactoryImplementor pc)           A representation of the value to be embedded in an XML element.

 

Methods inherited from class net.sf.hibernate.type.AbstractType

assemble, copy, disassemble, equals, hashCode, hydrate, isAssociationType, isComponentType, isDirty, isEntityType, isModified, isObjectType, isPersistentCollectionType, resolveIdentifier

 

Methods inherited from class java.lang.Object

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

 

Methods inherited from interface net.sf.hibernate.type.Type

equals, getName, getReturnedClass, hasNiceEquals, isMutable

 

Constructor Detail

NullableType

public NullableType()

Method Detail

get

public abstract Object get(ResultSet rs,
                           String name)
                    throws HibernateException,
                           SQLException

Throws:

HibernateException

SQLException

---

set

public abstract void set(PreparedStatement st,
                         Object value,
                         int index)
                  throws HibernateException,
                         SQLException

Throws:

HibernateException

SQLException

---

sqlType

public abstract int sqlType()

---

toString

public abstract String toString(Object value)
                         throws HibernateException

Throws:

HibernateException

---

fromStringValue

public abstract Object fromStringValue(String xml)
                                throws HibernateException

Throws:

HibernateException

---

nullSafeSet

public final void nullSafeSet(PreparedStatement st,
                              Object value,
                              int index,
                              SessionImplementor session)
                       throws HibernateException,
                              SQLException

Description copied from interface: Type

Write an instance of the mapped class to a prepared statement. Implementors should handle possibility of null values. A multi-column type should be written to parameters starting from index.

Parameters:

st -

value - the object to write

index - statement parameter index

session -

Throws:

SQLException

HibernateException

---

nullSafeSet

public final void nullSafeSet(PreparedStatement st,
                              Object value,
                              int index)
                       throws HibernateException,
                              SQLException

Throws:

HibernateException

SQLException

---

nullSafeGet

public final Object nullSafeGet(ResultSet rs,
                                String[] names,
                                SessionImplementor session,
                                Object owner)
                         throws HibernateException,
                                SQLException

Description copied from interface: Type

Retrieve an instance of the mapped class from a JDBC resultset. Implementors should handle possibility of null values.

Parameters:

rs -

names - the column names

session -

owner - the parent entity

Returns:

Object

Throws:

HibernateException

SQLException

See Also:

alternative, 2-phase property initialization

---

nullSafeGet

public final Object nullSafeGet(ResultSet rs,
                                String[] names)
                         throws HibernateException,
                                SQLException

Throws:

HibernateException

SQLException

---

nullSafeGet

public final Object nullSafeGet(ResultSet rs,
                                String name)
                         throws HibernateException,
                                SQLException

Throws:

HibernateException

SQLException

---

nullSafeGet

public final Object nullSafeGet(ResultSet rs,
                                String name,
                                SessionImplementor session,
                                Object owner)
                         throws HibernateException,
                                SQLException

Description copied from interface: Type

Retrieve an instance of the mapped class from a JDBC resultset. Implementations should handle possibility of null values. This method might be called if the type is known to be a single-column type.

Parameters:

rs -

name - the column name

session -

owner - the parent entity

Returns:

Object

Throws:

SQLException

HibernateException

---

toString

public final String toString(Object value,
                             SessionFactoryImplementor pc)
                      throws HibernateException

Description copied from interface: Type

A representation of the value to be embedded in an XML element.

Parameters:

value -

pc -

Returns:

String

Throws:

HibernateException

---

fromString

public final Object fromString(String xml)
                        throws HibernateException

Description copied from interface: Type

Parse the XML representation of an instance.

Parameters:

xml -

Returns:

an instance of the type

Throws:

HibernateException

---

getColumnSpan

public final int getColumnSpan(Mapping session)

Description copied from interface: Type

How many columns are used to persist this type.

---

sqlTypes

public final int[] sqlTypes(Mapping session)

Description copied from interface: Type

Return the SQL type codes for the columns mapped by this type. The codes are defined on java.sql.Types.

Returns:

the typecodes

See Also:

Types

---

deepCopyNotNull

public abstract Object deepCopyNotNull(Object value)
                                throws HibernateException

Throws:

HibernateException

---

deepCopy

public final Object deepCopy(Object value)
                      throws HibernateException

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

Throws:

HibernateException

---

Overview  Package   Class  Use  Tree  Deprecated  Index  Help
PREV CLASS   NEXT CLASS	FRAMES    NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

---