PersistentMap (Hibernate API Documentation) - Hibernate 3.2.3 正式版 API 英文文档

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org.hibernate.collection
Class PersistentMap

java.lang.Object
  org.hibernate.collection.AbstractPersistentCollection
      org.hibernate.collection.PersistentMap

All Implemented Interfaces:: Map, PersistentCollection, Serializable

Direct Known Subclasses:: PersistentSortedMap

public class PersistentMap
extends AbstractPersistentCollection
implements Map

A persistent wrapper for a java.util.Map. Underlying collection is a HashMap.

Author:: Gavin King
See Also:: HashMap, Serialized Form

Nested Class Summary

Nested classes inherited from class org.hibernate.collection.AbstractPersistentCollection

AbstractPersistentCollection.DelayedOperation

Nested classes inherited from class java.util.Map

Map.Entry

Field Summary

protected Map map


Fields inherited from class org.hibernate.collection.AbstractPersistentCollection

UNKNOWN

Constructor Summary

PersistentMap()
          Empty constructor.

PersistentMap(SessionImplementor session)
          Instantiates a lazy map (the underlying map is un-initialized).

PersistentMap(SessionImplementor session, Map map)
          Instantiates a non-lazy map (the underlying map is constructed from the incoming map reference).

Method Summary

void beforeInitialize(CollectionPersister persister, int anticipatedSize)
          Called before any elements are read into the collection, allowing appropriate initializations to occur.

void clear()


boolean containsKey(Object key)


boolean containsValue(Object value)


Serializable disassemble(CollectionPersister persister)
          Disassemble the collection, ready for the cache

boolean empty()
          Is the initialized collection empty?

Iterator entries(CollectionPersister persister)
          Iterate all collection entries, during update of the database

boolean entryExists(Object entry, int i)
          Does an element exist at this entry in the collection?

Set entrySet()


boolean equals(Object other)


boolean equalsSnapshot(CollectionPersister persister)
          Does the current state exactly match the snapshot?

Object get(Object key)


Iterator getDeletes(CollectionPersister persister, boolean indexIsFormula)
          Get all the elements that need deleting

Object getElement(Object entry)
          Get the value of the given collection entry

Object getIndex(Object entry, int i, CollectionPersister persister)
          Get the index of the given collection entry

Collection getOrphans(Serializable snapshot, String entityName)
          get all "orphaned" elements

Serializable getSnapshot(CollectionPersister persister)
          Return a new snapshot of the current state of the collection

Object getSnapshotElement(Object entry, int i)
          Get the snapshot value of the given collection entry

int hashCode()


void initializeFromCache(CollectionPersister persister, Serializable disassembled, Object owner)
          Read the state of the collection from a disassembled cached value

boolean isEmpty()


boolean isSnapshotEmpty(Serializable snapshot)
          Is the snapshot empty?

boolean isWrapper(Object collection)
          Is this the wrapper for the given underlying collection instance?

Set keySet()


boolean needsInserting(Object entry, int i, Type elemType)
          Do we need to insert this element?

boolean needsUpdating(Object entry, int i, Type elemType)
          Do we need to update this element?

Object put(Object key, Object value)


void putAll(Map puts)


Object readFrom(ResultSet rs, CollectionPersister persister, CollectionAliases descriptor, Object owner)
          Read a row from the JDBC result set

Object remove(Object key)


int size()


String toString()


Collection values()


Methods inherited from class org.hibernate.collection.AbstractPersistentCollection

afterInitialize, afterRowInsert, beginRead, clearDirty, dirty, endRead, forceInitialization, getCachedSize, getIdentifier, getKey, getOrphans, getOwner, getQueuedOrphans, getRole, getSession, getSnapshot, getStoredSnapshot, getValue, hasQueuedOperations, initialize, isClearQueueEnabled, isDirectlyAccessible, isDirty, isOperationQueueEnabled, isPutQueueEnabled, isRowUpdatePossible, isUnreferenced, needsRecreate, performQueuedOperations, postAction, preInsert, queuedAdditionIterator, queueOperation, read, readElementByIndex, readElementExistence, readIndexExistence, readSize, setCurrentSession, setDirectlyAccessible, setInitialized, setOwner, setSnapshot, unsetSession, wasInitialized, write

Methods inherited from class java.lang.Object

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

Field Detail

map

protected Map map

Constructor Detail

PersistentMap

public PersistentMap()

Empty constructor.

Note: this form is not ever ever ever used by Hibernate; it is, however, needed for SOAP libraries and other such marshalling code.

PersistentMap

public PersistentMap(SessionImplementor session)

Instantiates a lazy map (the underlying map is un-initialized).
Parameters:: session - The session to which this map will belong.

PersistentMap

public PersistentMap(SessionImplementor session,
                     Map map)

Instantiates a non-lazy map (the underlying map is constructed from the incoming map reference).
Parameters:: session - The session to which this map will belong.; map - The underlying map data.

Method Detail

getSnapshot

public Serializable getSnapshot(CollectionPersister persister)
                         throws HibernateException

Description copied from interface: PersistentCollection

Return a new snapshot of the current state of the collection

Specified by:: getSnapshot in interface PersistentCollection

Throws:: HibernateException

getOrphans

public Collection getOrphans(Serializable snapshot,
                             String entityName)
                      throws HibernateException

Description copied from class: AbstractPersistentCollection

get all "orphaned" elements

Specified by:: getOrphans in interface PersistentCollection
Specified by:: getOrphans in class AbstractPersistentCollection

Throws:: HibernateException

equalsSnapshot

public boolean equalsSnapshot(CollectionPersister persister)
                       throws HibernateException

Description copied from interface: PersistentCollection

Does the current state exactly match the snapshot?

Specified by:: equalsSnapshot in interface PersistentCollection

Throws:: HibernateException

isSnapshotEmpty

public boolean isSnapshotEmpty(Serializable snapshot)

Description copied from interface: PersistentCollection

Is the snapshot empty?

Specified by:: isSnapshotEmpty in interface PersistentCollection

isWrapper

public boolean isWrapper(Object collection)

Description copied from interface: PersistentCollection

Is this the wrapper for the given underlying collection instance?

Specified by:: isWrapper in interface PersistentCollection

beforeInitialize

public void beforeInitialize(CollectionPersister persister,
                             int anticipatedSize)

Description copied from interface: PersistentCollection

Called before any elements are read into the collection, allowing appropriate initializations to occur.

Specified by:: beforeInitialize in interface PersistentCollection

Parameters:: persister - The underlying collection persister.; anticipatedSize - The anticipated size of the collection after initilization is complete.

size

public int size()

Specified by:: size in interface Map

See Also:: Map.size()

isEmpty

public boolean isEmpty()

Specified by:: isEmpty in interface Map

See Also:: Map.isEmpty()

containsKey

public boolean containsKey(Object key)

Specified by:: containsKey in interface Map

See Also:: Map.containsKey(Object)

containsValue

public boolean containsValue(Object value)

Specified by:: containsValue in interface Map

See Also:: Map.containsValue(Object)

get

public Object get(Object key)

Specified by:: get in interface Map

See Also:: Map.get(Object)

put

public Object put(Object key,
                  Object value)

Specified by:: put in interface Map

See Also:: Map.put(Object, Object)

remove

public Object remove(Object key)

Specified by:: remove in interface Map

See Also:: Map.remove(Object)

putAll

public void putAll(Map puts)

Specified by:: putAll in interface Map

See Also:: Map.putAll(java.util.Map puts)

clear

public void clear()

Specified by:: clear in interface Map

See Also:: Map.clear()

keySet

public Set keySet()

Specified by:: keySet in interface Map

See Also:: Map.keySet()

values

public Collection values()

Specified by:: values in interface Map

See Also:: Map.values()

entrySet

public Set entrySet()

Specified by:: entrySet in interface Map

See Also:: Map.entrySet()

empty

public boolean empty()

Description copied from class: AbstractPersistentCollection

Is the initialized collection empty?

Specified by:: empty in interface PersistentCollection
Specified by:: empty in class AbstractPersistentCollection

toString

public String toString()

readFrom

public Object readFrom(ResultSet rs,
                       CollectionPersister persister,
                       CollectionAliases descriptor,
                       Object owner)
                throws HibernateException,
                       SQLException

Description copied from interface: PersistentCollection

Read a row from the JDBC result set

Specified by:: readFrom in interface PersistentCollection

Throws:: HibernateException; SQLException

entries

public Iterator entries(CollectionPersister persister)

Description copied from interface: PersistentCollection

Iterate all collection entries, during update of the database

Specified by:: entries in interface PersistentCollection

initializeFromCache

public void initializeFromCache(CollectionPersister persister,
                                Serializable disassembled,
                                Object owner)
                         throws HibernateException

Description copied from interface: PersistentCollection

Read the state of the collection from a disassembled cached value

Specified by:: initializeFromCache in interface PersistentCollection

Throws:: HibernateException

disassemble

public Serializable disassemble(CollectionPersister persister)
                         throws HibernateException

Description copied from interface: PersistentCollection

Disassemble the collection, ready for the cache

Specified by:: disassemble in interface PersistentCollection

Throws:: HibernateException

getDeletes

public Iterator getDeletes(CollectionPersister persister,
                           boolean indexIsFormula)
                    throws HibernateException

Description copied from interface: PersistentCollection

Get all the elements that need deleting

Specified by:: getDeletes in interface PersistentCollection

Throws:: HibernateException

needsInserting

public boolean needsInserting(Object entry,
                              int i,
                              Type elemType)
                       throws HibernateException

Description copied from interface: PersistentCollection

Do we need to insert this element?

Specified by:: needsInserting in interface PersistentCollection

Throws:: HibernateException

needsUpdating

public boolean needsUpdating(Object entry,
                             int i,
                             Type elemType)
                      throws HibernateException

Description copied from interface: PersistentCollection

Do we need to update this element?

Specified by:: needsUpdating in interface PersistentCollection

Throws:: HibernateException

getIndex

public Object getIndex(Object entry,
                       int i,
                       CollectionPersister persister)

Description copied from interface: PersistentCollection

Get the index of the given collection entry

Specified by:: getIndex in interface PersistentCollection

Parameters:: persister - it was more elegant before we added this...

getElement

public Object getElement(Object entry)

Description copied from interface: PersistentCollection

Get the value of the given collection entry

Specified by:: getElement in interface PersistentCollection

getSnapshotElement

public Object getSnapshotElement(Object entry,
                                 int i)

Description copied from interface: PersistentCollection

Get the snapshot value of the given collection entry

Specified by:: getSnapshotElement in interface PersistentCollection

equals

public boolean equals(Object other)

Specified by:: equals in interface Map

hashCode

public int hashCode()

Specified by:: hashCode in interface Map

entryExists

public boolean entryExists(Object entry,
                           int i)

Description copied from interface: PersistentCollection

Does an element exist at this entry in the collection?

Specified by:: entryExists in interface PersistentCollection

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Constructor Summary
`PersistentMap()` Empty constructor.
`PersistentMap(SessionImplementor session)` Instantiates a lazy map (the underlying map is un-initialized).
`PersistentMap(SessionImplementor session, Map map)` Instantiates a non-lazy map (the underlying map is constructed from the incoming map reference).

Method Summary
`void`	`beforeInitialize(CollectionPersister persister, int anticipatedSize)` Called before any elements are read into the collection, allowing appropriate initializations to occur.
`void`	`clear()`
`boolean`	`containsKey(Object key)`
`boolean`	`containsValue(Object value)`
`Serializable`	`disassemble(CollectionPersister persister)` Disassemble the collection, ready for the cache
`boolean`	`empty()` Is the initialized collection empty?
`Iterator`	`entries(CollectionPersister persister)` Iterate all collection entries, during update of the database
`boolean`	`entryExists(Object entry, int i)` Does an element exist at this entry in the collection?
`Set`	`entrySet()`
`boolean`	`equals(Object other)`
`boolean`	`equalsSnapshot(CollectionPersister persister)` Does the current state exactly match the snapshot?
`Object`	`get(Object key)`
`Iterator`	`getDeletes(CollectionPersister persister, boolean indexIsFormula)` Get all the elements that need deleting
`Object`	`getElement(Object entry)` Get the value of the given collection entry
`Object`	`getIndex(Object entry, int i, CollectionPersister persister)` Get the index of the given collection entry
`Collection`	`getOrphans(Serializable snapshot, String entityName)` get all "orphaned" elements
`Serializable`	`getSnapshot(CollectionPersister persister)` Return a new snapshot of the current state of the collection
`Object`	`getSnapshotElement(Object entry, int i)` Get the snapshot value of the given collection entry
`int`	`hashCode()`
`void`	`initializeFromCache(CollectionPersister persister, Serializable disassembled, Object owner)` Read the state of the collection from a disassembled cached value
`boolean`	`isEmpty()`
`boolean`	`isSnapshotEmpty(Serializable snapshot)` Is the snapshot empty?
`boolean`	`isWrapper(Object collection)` Is this the wrapper for the given underlying collection instance?
`Set`	`keySet()`
`boolean`	`needsInserting(Object entry, int i, Type elemType)` Do we need to insert this element?
`boolean`	`needsUpdating(Object entry, int i, Type elemType)` Do we need to update this element?
`Object`	`put(Object key, Object value)`
`void`	`putAll(Map puts)`
`Object`	`readFrom(ResultSet rs, CollectionPersister persister, CollectionAliases descriptor, Object owner)` Read a row from the JDBC result set
`Object`	`remove(Object key)`
`int`	`size()`
`String`	`toString()`
`Collection`	`values()`

PersistentMap (Hibernate API Documentation) - Hibernate 3.2.3 正式版 API 英文文档

org.hibernate.collection Class PersistentMap

map

PersistentMap

PersistentMap

PersistentMap

getSnapshot

getOrphans

equalsSnapshot

isSnapshotEmpty

isWrapper

beforeInitialize

size

isEmpty

containsKey

containsValue

get

put

remove

putAll

clear

keySet

values

entrySet

empty

toString

readFrom

entries

initializeFromCache

disassemble

getDeletes

needsInserting

needsUpdating

getIndex

getElement

getSnapshotElement

equals

hashCode

entryExists

org.hibernate.collection
Class PersistentMap