ManyToManyRelationResolver (Castor JavaDoc)

java.lang.Object
- org.castor.persist.resolver.BaseRelationResolver
- - org.castor.persist.resolver.ManyRelationResolver
  - - org.castor.persist.resolver.ManyToManyRelationResolver

All Implemented Interfaces:

ResolverStrategy
```
public final class ManyToManyRelationResolver
extends ManyRelationResolver
```
Implementation of ResolverStrategy for M:N relations.

Since:

0.9.9

Author:

Werner Guttmann

Field Summary
- Fields inherited from class org.castor.persist.resolver.BaseRelationResolver
  _classMolder, _fieldMolder

Constructor Summary

Constructors
Constructor	Description
`ManyToManyRelationResolver(ClassMolder classMolder, FieldMolder fieldMolder, int fieldIndex)`	Creates an instance of ManyToManyRelationResolver.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`markCreate(TransactionContext tx, OID oid, java.lang.Object object)`	Walk the object model and mark object that should be created.
`void`	`markDelete(TransactionContext tx, java.lang.Object object, java.lang.Object field)`	Prepare to delete an object with the specified identity.
`java.lang.Object`	`postCreate(TransactionContext tx, OID oid, java.lang.Object object, java.lang.Object field, Identity createdId)`	Called after successful creation of an object of the base class.
`UpdateFlags`	`preStore(TransactionContext tx, OID oid, java.lang.Object object, int timeout, java.lang.Object field)`	Check the object for modification.
`void`	`update(TransactionContext tx, OID oid, java.lang.Object object, AccessMode suggestedAccessMode, java.lang.Object field)`	Update the object which loaded or created in the other transaction to the persistent storage.
`boolean`	`updateWhenNoTimestampSet(TransactionContext tx, OID oid, java.lang.Object object, AccessMode suggestedAccessMode)`	Update the object which loaded or created in the other transaction to the persistent storage.

Methods inherited from class org.castor.persist.resolver.BaseRelationResolver
isCascadingCreate, isCascadingDelete, isCascadingUpdate

Methods inherited from class org.castor.persist.resolver.ManyRelationResolver
create, expireCache, load, removeRelation, revertObject, store, updateCache

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

- Constructor Detail
  - ManyToManyRelationResolver
```
public ManyToManyRelationResolver(ClassMolder classMolder,
                                  FieldMolder fieldMolder,
                                  int fieldIndex)
```
    Creates an instance of ManyToManyRelationResolver.
    
    Parameters:
    
    classMolder - Associated ClassMolder.
    
    fieldMolder - Associated FieldMolder.
    
    fieldIndex - Field index within all fields of parent class molder.
- Method Detail
  - markCreate
```
public boolean markCreate(TransactionContext tx,
                          OID oid,
                          java.lang.Object object)
                   throws PersistenceException
```
    Description copied from interface: ResolverStrategy
    
    Walk the object model and mark object that should be created.
    
    Specified by:
    
    markCreate in interface ResolverStrategy
    
    Specified by:
    
    markCreate in class ManyRelationResolver
    
    Parameters:
    
    tx - transaction in action
    
    oid - the object identity of the object to be created.
    
    object - the object to be created
    
    Returns:
    
    true if there's objects that should be created
    
    Throws:
    
    PersistenceException
    
    See Also:
    
    #markCreate(org.castor.persist.TransactionContext, org.exolab.castor.persist.OID, java.lang.Object)
  - markDelete
```
public void markDelete(TransactionContext tx,
                       java.lang.Object object,
                       java.lang.Object field)
                throws PersistenceException
```
    Description copied from interface: ResolverStrategy
    
    Prepare to delete an object with the specified identity. If any sub-object should be deleted along with the target object, it should be deleted by this method.
    
    Specified by:
    
    markDelete in interface ResolverStrategy
    
    Specified by:
    
    markDelete in class ManyRelationResolver
    
    Parameters:
    
    tx - - transaction in action
    
    object - - the target object
    
    field - The field value as returned by the SQLEngine
    
    Throws:
    
    PersistenceException - If it is not possible to successfully complete this method.
    
    See Also:
    
    #markDelete(org.castor.persist.TransactionContext, java.lang.Object, java.lang.Object)
  - preStore
```
public UpdateFlags preStore(TransactionContext tx,
                            OID oid,
                            java.lang.Object object,
                            int timeout,
                            java.lang.Object field)
                     throws PersistenceException
```
    Description copied from interface: ResolverStrategy
    
    Check the object for modification. If dpendent object is dereferenced, it method will remove the object thru the transaction. If an related object is dereferenced, it method will make sure the formally object will be dereferenced from the other side as well. This method is called in prepare (for commit) state of the transaction. This method indicates if the object needed to be persist or cache should be update using TransactionContext.markDelete.
    
    Specified by:
    
    preStore in interface ResolverStrategy
    
    Specified by:
    
    preStore in class ManyRelationResolver
    
    Parameters:
    
    tx - transaction in action
    
    oid - the object identity of the object
    
    object - the data object to be checked
    
    timeout - timeout of updating the lock if needed
    
    field - The field value as returned by the SQLEngine
    
    Returns:
    
    true if the object is modified
    
    Throws:
    
    PersistenceException - If it is not possible to successfully complete this method.
    
    See Also:
    
    #preStore(org.castor.persist.TransactionContext, org.exolab.castor.persist.OID, java.lang.Object, int, java.lang.Object)
  - update
```
public void update(TransactionContext tx,
                   OID oid,
                   java.lang.Object object,
                   AccessMode suggestedAccessMode,
                   java.lang.Object field)
            throws PersistenceException
```
    Description copied from interface: ResolverStrategy
    
    Update the object which loaded or created in the other transaction to the persistent storage.
    
    Specified by:
    
    update in interface ResolverStrategy
    
    Specified by:
    
    update in class ManyRelationResolver
    
    Parameters:
    
    tx - Transaction in action
    
    oid - the object identity of the stored object
    
    object - the object to be stored
    
    suggestedAccessMode - Suggested access mode
    
    field - The field value as returned by the SQLEngine
    
    Throws:
    
    PersistenceException - If it is not possible to successfully complete this method.
    
    See Also:
    
    #update(org.castor.persist.TransactionContext, org.exolab.castor.persist.OID, java.lang.Object, org.exolab.castor.mapping.AccessMode, java.lang.Object)
  - postCreate
```
public java.lang.Object postCreate(TransactionContext tx,
                                   OID oid,
                                   java.lang.Object object,
                                   java.lang.Object field,
                                   Identity createdId)
                            throws PersistenceException
```
    Description copied from interface: ResolverStrategy
    
    Called after successful creation of an object of the base class.
    
    Specified by:
    
    postCreate in interface ResolverStrategy
    
    Specified by:
    
    postCreate in class ManyRelationResolver
    
    Parameters:
    
    tx - transaction in action
    
    oid - the object identity of the object to be created.
    
    object - the object to be created
    
    field - The field value as returned by the SQLEngine
    
    createdId - ???
    
    Returns:
    
    the identity of the object
    
    Throws:
    
    PersistenceException
    
    See Also:
    
    ManyRelationResolver.postCreate( org.castor.persist.TransactionContext, org.exolab.castor.persist.OID, java.lang.Object, java.lang.Object, org.exolab.castor.persist.spi.Identity)
  - updateWhenNoTimestampSet
```
public boolean updateWhenNoTimestampSet(TransactionContext tx,
                                        OID oid,
                                        java.lang.Object object,
                                        AccessMode suggestedAccessMode)
                                 throws PersistenceException
```
    Description copied from interface: ResolverStrategy
    
    Update the object which loaded or created in the other transaction to the persistent storage.
    
    Parameters:
    
    tx - Transaction in action
    
    oid - the object identity of the stored object
    
    object - the object to be stored
    
    suggestedAccessMode - Suggested access mode
    
    Returns:
    
    TODO
    
    Throws:
    
    PersistenceException - If it is not possible to successfully complete this method.

Class ManyToManyRelationResolver

Field Summary

Fields inherited from class org.castor.persist.resolver.BaseRelationResolver

Constructor Summary

Method Summary

Methods inherited from class org.castor.persist.resolver.BaseRelationResolver

Methods inherited from class org.castor.persist.resolver.ManyRelationResolver

Methods inherited from class java.lang.Object

Constructor Detail

ManyToManyRelationResolver

Method Detail

markCreate

markDelete

preStore

update

postCreate

updateWhenNoTimestampSet