com.platon.storage.db

类 DatabaseImpl

java.lang.Object

com.platon.storage.db.DatabaseImpl

所有已实现的接口:

Database

public class DatabaseImpl
extends java.lang.Object
implements Database

Generic interface for privacy database LevelDB key/value pair DB implementation will be used. Choice must be made between: Pure Java: https://github.com/dain/leveldb JNI binding: https://github.com/fusesource/leveldbjni

构造器概要

构造器

构造器和说明
DatabaseImpl(java.lang.String name)

方法概要

限定符和类型	方法和说明
void	close() Close the database connection
void	delete(byte[] key) Delete key/value pair from database
void	destroyDB(java.io.File fileLocation)
java.util.List<ByteArrayWrapper>	dumpKeys()
byte[]	get(byte[] key) Get value from database
org.iq80.leveldb.DB	getDb()
org.iq80.leveldb.DBIterator	iterator()
void	put(byte[] key, byte[] value) Insert value into database

从类继承的方法 java.lang.Object

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

构造器详细资料

DatabaseImpl

public DatabaseImpl(java.lang.String name)

方法详细资料

destroyDB

public void destroyDB(java.io.File fileLocation)

get

public byte[] get(byte[] key)

从接口复制的说明: Database

Get value from database

指定者:

get 在接口中 Database

参数:

key - for which to retrieve the value

返回:

the value for the given key

put

public void put(byte[] key,
                byte[] value)

从接口复制的说明: Database

Insert value into database

指定者:

put 在接口中 Database

参数:

key - for the given value

value - to insert

delete

public void delete(byte[] key)

从接口复制的说明: Database

Delete key/value pair from database

指定者:

delete 在接口中 Database

参数:

key - for which to delete the value

iterator

public org.iq80.leveldb.DBIterator iterator()

getDb

public org.iq80.leveldb.DB getDb()

close

public void close()

从接口复制的说明: Database

Close the database connection

指定者:

close 在接口中 Database

dumpKeys

public java.util.List<ByteArrayWrapper> dumpKeys()