org.rocksdb

类 SstFileReader

java.lang.Object

org.rocksdb.AbstractNativeReference

org.rocksdb.AbstractImmutableNativeReference

org.rocksdb.RocksObject

org.rocksdb.SstFileReader

所有已实现的接口:

java.lang.AutoCloseable

public class SstFileReader
extends RocksObject

字段概要

从类继承的字段 org.rocksdb.RocksObject

nativeHandle_

从类继承的字段 org.rocksdb.AbstractImmutableNativeReference

owningHandle_

构造器概要

构造器

构造器和说明
SstFileReader(Options options)

方法概要

限定符和类型	方法和说明
protected void	disposeInternal(long handle)
TableProperties	getTableProperties() Get the properties of the table.
SstFileReaderIterator	newIterator(ReadOptions readOptions) Returns an iterator that will iterate on all keys in the default column family including both keys in the DB and uncommitted keys in this transaction.
void	open(java.lang.String filePath) Prepare SstFileReader to read a file.
void	verifyChecksum() Verify checksum

从类继承的方法 org.rocksdb.RocksObject

disposeInternal, getNativeHandle

从类继承的方法 org.rocksdb.AbstractImmutableNativeReference

close, disOwnNativeHandle, isOwningHandle

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

SstFileReader

public SstFileReader(Options options)

方法详细资料

newIterator

public SstFileReaderIterator newIterator(ReadOptions readOptions)

Returns an iterator that will iterate on all keys in the default column family including both keys in the DB and uncommitted keys in this transaction.

Setting ReadOptions.setSnapshot(Snapshot) will affect what is read from the DB but will NOT change which keys are read from this transaction (the keys in this transaction do not yet belong to any snapshot and will be fetched regardless).

Caller is responsible for deleting the returned Iterator.

参数:

readOptions - Read options.

返回:

instance of iterator object.

open

public void open(java.lang.String filePath)
          throws RocksDBException

Prepare SstFileReader to read a file.

参数:

filePath - the location of file

抛出:

RocksDBException - thrown if error happens in underlying native library.

verifyChecksum

public void verifyChecksum()
                    throws RocksDBException

Verify checksum

抛出:

RocksDBException - if the checksum is not valid

getTableProperties

public TableProperties getTableProperties()
                                   throws RocksDBException

Get the properties of the table.

返回:

the properties

抛出:

RocksDBException - if an error occurs whilst getting the table properties

disposeInternal

protected final void disposeInternal(long handle)

指定者:

disposeInternal 在类中 RocksObject