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[Java] Add Java binding and Java test for ReadOptions.

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Summary: Add Java binding and test for rocksdb::ReadOptions.

Test Plan:
make rocksdbjava
make jtest

Reviewers: haobo, dhruba, sdong, ankgup87, rsumbaly, swapnilghike, zzbennett

Reviewed By: haobo

CC: leveldb

Differential Revision: https://reviews.facebook.net/D18129
This commit is contained in:
Yueh-Hsuan Chiang
2014-04-21 15:52:59 -07:00
parent d0939cdcea
commit e316af5f16
8 changed files with 476 additions and 17 deletions
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42
java/org/rocksdb/RocksDB.java
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@@ -75,7 +75,8 @@ public class RocksDB {
*/
public void put(WriteOptions writeOpts, byte[] key, byte[] value)
throws RocksDBException {
put(nativeHandle_, writeOpts.nativeHandle_, key, key.length, value, value.length);
put(nativeHandle_, writeOpts.nativeHandle_,
key, key.length, value, value.length);
}
/**
@@ -102,6 +103,24 @@ public class RocksDB {
return get(nativeHandle_, key, key.length, value, value.length);
}
/**
* Get the value associated with the specified key.
*
* @param key the key to retrieve the value.
* @param value the out-value to receive the retrieved value.
* @return The size of the actual value that matches the specified
* {@code key} in byte. If the return value is greater than the
* length of {@code value}, then it indicates that the size of the
* input buffer {@code value} is insufficient and partial result will
* be returned. RocksDB.NOT_FOUND will be returned if the value not
* found.
*/
public int get(ReadOptions opt, byte[] key, byte[] value)
throws RocksDBException {
return get(nativeHandle_, opt.nativeHandle_,
key, key.length, value, value.length);
}
/**
* The simplified version of get which returns a new byte array storing
* the value associated with the specified input key if any. null will be
@@ -117,6 +136,21 @@ public class RocksDB {
return get(nativeHandle_, key, key.length);
}
/**
* The simplified version of get which returns a new byte array storing
* the value associated with the specified input key if any. null will be
* returned if the specified key is not found.
*
* @param key the key retrieve the value.
* @return a byte array storing the value associated with the input key if
* any. null if it does not find the specified key.
*
* @see RocksDBException
*/
public byte[] get(ReadOptions opt, byte[] key) throws RocksDBException {
return get(nativeHandle_, opt.nativeHandle_, key, key.length);
}
/**
* Remove the database entry (if any) for "key". Returns OK on
* success, and a non-OK status on error. It is not an error if "key"
@@ -176,8 +210,14 @@ public class RocksDB {
protected native int get(
long handle, byte[] key, int keyLen,
byte[] value, int valueLen) throws RocksDBException;
protected native int get(
long handle, long readOptHandle, byte[] key, int keyLen,
byte[] value, int valueLen) throws RocksDBException;
protected native byte[] get(
long handle, byte[] key, int keyLen) throws RocksDBException;
protected native byte[] get(
long handle, long readOptHandle,
byte[] key, int keyLen) throws RocksDBException;
protected native void remove(
long handle, byte[] key, int keyLen) throws RocksDBException;
protected native void remove(