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c990a764
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rocksdb
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rocksdb
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体验新版 GitCode,发现更多精彩内容 >>
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c990a764
编写于
4月 06, 2014
作者:
A
Ankit Gupta
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差异文件
Add documentation for JNI options
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63d74d2b
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1
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1 changed file
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+46
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java/org/rocksdb/Options.java
java/org/rocksdb/Options.java
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java/org/rocksdb/Options.java
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c990a764
...
@@ -107,31 +107,77 @@ public class Options {
...
@@ -107,31 +107,77 @@ public class Options {
return
maxWriteBufferNumber
(
nativeHandle_
);
return
maxWriteBufferNumber
(
nativeHandle_
);
}
}
/*
* Approximate size of user data packed per block. Note that the
* block size specified here corresponds to uncompressed data. The
* actual size of the unit read from disk may be smaller if
* compression is enabled. This parameter can be changed dynamically.
*
* Default: 4K
*
* @param block size
* @see RocksDB::Open()
*/
public
void
setBlockSize
(
int
blockSize
)
{
public
void
setBlockSize
(
int
blockSize
)
{
checkInitialization
();
checkInitialization
();
setBlockSize
(
nativeHandle_
,
blockSize
);
setBlockSize
(
nativeHandle_
,
blockSize
);
}
}
/*
* Returns block size.
*
* @return block size.
* @see setBlockSize()
*/
public
int
blockSize
()
{
public
int
blockSize
()
{
checkInitialization
();
checkInitialization
();
return
blockSize
(
nativeHandle_
);
return
blockSize
(
nativeHandle_
);
}
}
/*
* Disable compaction triggered by seek.
* With bloomfilter and fast storage, a miss on one level
* is very cheap if the file handle is cached in table cache
* (which is true if max_open_files is large).
*
* @param disable seek compaction
* @see RocksDB::Open()
*/
public
void
setDisableSeekCompaction
(
boolean
disableSeekCompaction
)
{
public
void
setDisableSeekCompaction
(
boolean
disableSeekCompaction
)
{
checkInitialization
();
checkInitialization
();
setDisableSeekCompaction
(
nativeHandle_
,
disableSeekCompaction
);
setDisableSeekCompaction
(
nativeHandle_
,
disableSeekCompaction
);
}
}
/*
* Returns true if disable seek compaction is set to true.
*
* @return true if disable seek compaction is set to true.
* @see setDisableSeekCompaction()
*/
public
boolean
disableSeekCompaction
()
{
public
boolean
disableSeekCompaction
()
{
checkInitialization
();
checkInitialization
();
return
disableSeekCompaction
(
nativeHandle_
);
return
disableSeekCompaction
(
nativeHandle_
);
}
}
/*
* Maximum number of concurrent background jobs, submitted to
* the default LOW priority thread pool
* Default: 1
*
* @param maximum number of concurrent background jobs.
* @see RocksDB::Open()
*/
public
void
setMaxBackgroundCompactions
(
int
maxBackgroundCompactions
)
{
public
void
setMaxBackgroundCompactions
(
int
maxBackgroundCompactions
)
{
checkInitialization
();
checkInitialization
();
setMaxBackgroundCompactions
(
nativeHandle_
,
maxBackgroundCompactions
);
setMaxBackgroundCompactions
(
nativeHandle_
,
maxBackgroundCompactions
);
}
}
/*
* Returns maximum number of background concurrent jobs
*
* @return maximum number of background concurrent jobs
* @see setMaxBackgroundCompactions
*/
public
int
maxBackgroundCompactions
()
{
public
int
maxBackgroundCompactions
()
{
checkInitialization
();
checkInitialization
();
return
maxBackgroundCompactions
(
nativeHandle_
);
return
maxBackgroundCompactions
(
nativeHandle_
);
...
...
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