com.devsmart.microdb

Class MapDBDriver

java.lang.Object

com.devsmart.microdb.MapDBDriver

All Implemented Interfaces:

Driver

public class MapDBDriver
extends java.lang.Object
implements Driver

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MapDBDriver.UBValueSerializer

Field Summary

Fields

Modifier and Type	Field and Description
static org.mapdb.Serializer<com.devsmart.ubjson.UBValue>	SERIALIZER_UBVALUE

Constructor Summary

Constructors

Constructor and Description
MapDBDriver(org.mapdb.DB mapdb)

Method Summary

Modifier and Type	Method and Description
<T extends java.lang.Comparable<T>> void	addIndex(java.lang.String indexName, MapFunction<T> mapFunction)
void	beginTransaction()
void	close()
void	commitTransaction()
void	compact()
void	delete(java.util.UUID key) delete the database object with key key
void	deleteIndex(java.lang.String indexName)
java.util.UUID	genId()
com.devsmart.ubjson.UBValue	get(java.util.UUID key) loads the database value with key
org.mapdb.DB	getDB()
com.devsmart.ubjson.UBObject	getMeta()
long	incrementLongField(java.lang.String fieldName)
void	insert(java.util.UUID id, com.devsmart.ubjson.UBValue value) inserts a new value into the the database.
<T extends java.lang.Comparable<T>> Cursor	queryIndex(java.lang.String indexName, T min, boolean minInclusive, T max, boolean maxInclusive)
void	recomputeIndex(java.lang.String indexName)
void	rollbackTransaction()
void	saveMeta(com.devsmart.ubjson.UBObject obj)
void	update(java.util.UUID id, com.devsmart.ubjson.UBValue value) replace value with key id with new value value.

Methods inherited from class java.lang.Object

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

Field Detail

SERIALIZER_UBVALUE

public static final org.mapdb.Serializer<com.devsmart.ubjson.UBValue> SERIALIZER_UBVALUE

Constructor Detail

MapDBDriver

public MapDBDriver(org.mapdb.DB mapdb)

Method Detail

getDB

public org.mapdb.DB getDB()

close

public void close()

Specified by:

close in interface Driver

getMeta

public com.devsmart.ubjson.UBObject getMeta()
                                     throws java.io.IOException

Specified by:

getMeta in interface Driver

Throws:

java.io.IOException

saveMeta

public void saveMeta(com.devsmart.ubjson.UBObject obj)
              throws java.io.IOException

Specified by:

saveMeta in interface Driver

Throws:

java.io.IOException

get

public com.devsmart.ubjson.UBValue get(java.util.UUID key)
                                throws java.io.IOException

Description copied from interface: Driver

loads the database value with key

Specified by:

get in interface Driver

Returns:

the value stored in the database or null if it does not exist

Throws:

java.io.IOException

genId

public java.util.UUID genId()

Specified by:

genId in interface Driver

insert

public void insert(java.util.UUID id,
                   com.devsmart.ubjson.UBValue value)
            throws java.io.IOException

Description copied from interface: Driver

inserts a new value into the the database.

Specified by:

insert in interface Driver

Parameters:

id - the new object key. This value should have originated from a call to genId()

Throws:

java.io.IOException

update

public void update(java.util.UUID id,
                   com.devsmart.ubjson.UBValue value)
            throws java.io.IOException

Description copied from interface: Driver

replace value with key id with new value value. If a value with with id does not exist, insert the key-value pair.

Specified by:

update in interface Driver

Throws:

java.io.IOException

delete

public void delete(java.util.UUID key)
            throws java.io.IOException

Description copied from interface: Driver

delete the database object with key key

Specified by:

delete in interface Driver

Throws:

java.io.IOException

queryIndex

public <T extends java.lang.Comparable<T>> Cursor queryIndex(java.lang.String indexName,
                                                             T min,
                                                             boolean minInclusive,
                                                             T max,
                                                             boolean maxInclusive)
                                                      throws java.io.IOException

Specified by:

queryIndex in interface Driver

Throws:

java.io.IOException

addIndex

public <T extends java.lang.Comparable<T>> void addIndex(java.lang.String indexName,
                                                         MapFunction<T> mapFunction)
                                                  throws java.io.IOException

Specified by:

addIndex in interface Driver

Throws:

java.io.IOException

recomputeIndex

public void recomputeIndex(java.lang.String indexName)

Specified by:

recomputeIndex in interface Driver

deleteIndex

public void deleteIndex(java.lang.String indexName)

Specified by:

deleteIndex in interface Driver

incrementLongField

public long incrementLongField(java.lang.String fieldName)

Specified by:

incrementLongField in interface Driver

beginTransaction

public void beginTransaction()
                      throws java.io.IOException

Specified by:

beginTransaction in interface Driver

Throws:

java.io.IOException

commitTransaction

public void commitTransaction()
                       throws java.io.IOException

Specified by:

commitTransaction in interface Driver

Throws:

java.io.IOException

rollbackTransaction

public void rollbackTransaction()
                         throws java.io.IOException

Specified by:

rollbackTransaction in interface Driver

Throws:

java.io.IOException

compact

public void compact()
             throws java.io.IOException

Specified by:

compact in interface Driver

Throws:

java.io.IOException