de.caluga.morphium.writer

Class WriterImpl

java.lang.Object

de.caluga.morphium.writer.WriterImpl

All Implemented Interfaces:

Writer

public class WriterImpl
extends Object
implements Writer

User: Stephan Bösebeck Date: 30.08.12 Time: 14:38

default writer implementation

See Also:

Writer

Constructor Summary

Constructors

Constructor and Description
WriterImpl()

Method Summary

Methods

Modifier and Type	Method and Description
<T> void	delete(List<T> lst, AsyncOperationCallback<T> callback)
<T> void	delete(Query<T> q, AsyncOperationCallback<T> callback) deletes all objects matching the given query
<T> void	delete(T o, AsyncOperationCallback<T> callback)
<T> void	dropCollection(Class<T> cls, AsyncOperationCallback<T> callback)
<T> void	ensureIndex(Class<T> cls, Map<String,Object> index, AsyncOperationCallback<T> callback)
<T> void	inc(Query<T> query, String field, int amount, boolean insertIfNotExist, boolean multiple, AsyncOperationCallback<T> callback)
<T> void	inc(T toInc, String field, int amount, AsyncOperationCallback<T> callback) Increases a value in an existing mongo collection entry - no reading necessary.
<T> void	pushPull(boolean push, Query<T> query, String field, Object value, boolean insertIfNotExist, boolean multiple, AsyncOperationCallback<T> callback)
<T> void	pushPullAll(boolean push, Query<T> query, String f, List<?> v, boolean insertIfNotExist, boolean multiple, AsyncOperationCallback<T> callback)
<T> void	set(Query<T> query, Map<String,Object> values, boolean insertIfNotExist, boolean multiple, AsyncOperationCallback<T> callback) will change an entry in mongodb-collection corresponding to given class object if query is too complex, upsert might not work!
<T> void	set(T toSet, String field, Object v, boolean insertIfNotExist, boolean multiple, AsyncOperationCallback<T> callback) changes an object in DB AND in Memory...
void	setMorphium(Morphium m)
<T> void	store(List<T> lst, AsyncOperationCallback<T> callback) stores the given list of objects, should be entities or embedded
<T> void	store(T obj, AsyncOperationCallback<T> callback) Stores the object, should be an entity
<T> void	storeUsingFields(T ent, AsyncOperationCallback<T> callback, String... fields) update an object using fields specified
<T> void	unset(T toSet, String field, AsyncOperationCallback<T> callback) Un-setting a value in an existing mongo collection entry - no reading necessary.
int	writeBufferCount()

Methods inherited from class java.lang.Object

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

Constructor Detail

WriterImpl

public WriterImpl()

Method Detail

setMorphium

public void setMorphium(Morphium m)

Specified by:

setMorphium in interface Writer

store

public <T> void store(T obj,
             AsyncOperationCallback<T> callback)

Description copied from interface: Writer

Stores the object, should be an entity

Specified by:

store in interface Writer

Parameters:

obj - - object to store

store

public <T> void store(List<T> lst,
             AsyncOperationCallback<T> callback)

Description copied from interface: Writer

stores the given list of objects, should be entities or embedded

Specified by:

store in interface Writer

Parameters:

lst - - to store

set

public <T> void set(T toSet,
           String field,
           Object v,
           boolean insertIfNotExist,
           boolean multiple,
           AsyncOperationCallback<T> callback)

Description copied from interface: Writer

changes an object in DB AND in Memory... the Object toSet WILL be modified!

Specified by:

set in interface Writer

Parameters:

toSet - entity to set values in both in mongo and in memory

field - field

v - value to set

storeUsingFields

public <T> void storeUsingFields(T ent,
                        AsyncOperationCallback<T> callback,
                        String... fields)

Description copied from interface: Writer

update an object using fields specified

Specified by:

storeUsingFields in interface Writer

Parameters:

ent - entity

fields - - fields

delete

public <T> void delete(List<T> lst,
              AsyncOperationCallback<T> callback)

Specified by:

delete in interface Writer

delete

public <T> void delete(Query<T> q,
              AsyncOperationCallback<T> callback)

deletes all objects matching the given query

Specified by:

delete in interface Writer

Parameters:

q - - query

delete

public <T> void delete(T o,
              AsyncOperationCallback<T> callback)

Specified by:

delete in interface Writer

inc

public <T> void inc(T toInc,
           String field,
           int amount,
           AsyncOperationCallback<T> callback)

Increases a value in an existing mongo collection entry - no reading necessary. Object is altered in place db.collection.update({"_id":toInc.id},{$inc:{field:amount}} attention: this alteres the given object toSet in a similar way

Specified by:

inc in interface Writer

Parameters:

toInc: - object to set the value in (or better - the corresponding entry in mongo)

field: - the field to change

amount: - the value to set

inc

public <T> void inc(Query<T> query,
           String field,
           int amount,
           boolean insertIfNotExist,
           boolean multiple,
           AsyncOperationCallback<T> callback)

Specified by:

inc in interface Writer

set

public <T> void set(Query<T> query,
           Map<String,Object> values,
           boolean insertIfNotExist,
           boolean multiple,
           AsyncOperationCallback<T> callback)

will change an entry in mongodb-collection corresponding to given class object if query is too complex, upsert might not work! Upsert should consist of single and-queries, which will be used to generate the object to create, unless it already exists. look at Mongodb-query documentation as well

Specified by:

set in interface Writer

Parameters:

query - - query to specify which objects should be set

values - - map fieldName->Value, which values are to be set!

insertIfNotExist - - insert, if it does not exist (query needs to be simple!)

multiple - - update several documents, if false, only first hit will be updated

unset

public <T> void unset(T toSet,
             String field,
             AsyncOperationCallback<T> callback)

Un-setting a value in an existing mongo collection entry - no reading necessary. Object is altered in place db.collection.update({"_id":toSet.id},{$unset:{field:1}} attention: this alteres the given object toSet in a similar way

Specified by:

unset in interface Writer

Parameters:

toSet: - object to set the value in (or better - the corresponding entry in mongo)

field: - field to remove from document

pushPull

public <T> void pushPull(boolean push,
                Query<T> query,
                String field,
                Object value,
                boolean insertIfNotExist,
                boolean multiple,
                AsyncOperationCallback<T> callback)

Specified by:

pushPull in interface Writer

pushPullAll

public <T> void pushPullAll(boolean push,
                   Query<T> query,
                   String f,
                   List<?> v,
                   boolean insertIfNotExist,
                   boolean multiple,
                   AsyncOperationCallback<T> callback)

Specified by:

pushPullAll in interface Writer

dropCollection

public <T> void dropCollection(Class<T> cls,
                      AsyncOperationCallback<T> callback)

Specified by:

dropCollection in interface Writer

ensureIndex

public <T> void ensureIndex(Class<T> cls,
                   Map<String,Object> index,
                   AsyncOperationCallback<T> callback)

Specified by:

ensureIndex in interface Writer

writeBufferCount

public int writeBufferCount()

Specified by:

writeBufferCount in interface Writer