Add fixed classes

java/org/rocksdb/HistogramData.java

@@ -0,0 +1,43 @@
+// Copyright (c) 2014, Facebook, Inc.  All rights reserved.
+// This source code is licensed under the BSD-style license found in the
+// LICENSE file in the root directory of this source tree. An additional grant
+// of patent rights can be found in the PATENTS file in the same directory.
+
+package org.rocksdb;
+
+public class HistogramData {
+  private final double median_;
+  private final double percentile95_;
+  private final double percentile99_;
+  private final double average_;
+  private final double standardDeviation_;
+  
+  public HistogramData(double median, double percentile95, 
+      double percentile99, double average, double standardDeviation) {
+    median_ = median;
+    percentile95_ = percentile95;
+    percentile99_ = percentile99;
+    average_ = average;
+    standardDeviation_ = standardDeviation;
+  }
+  
+  public double getMedian() {
+    return median_;
+  }
+  
+  public double getPercentile95() {
+    return percentile95_;
+  }
+  
+  public double getPercentile99() {
+    return percentile99_;
+  }
+  
+  public double getAverage() {
+    return average_;
+  }
+  
+  public double getStandardDeviation() {
+    return standardDeviation_;
+  }
+}

java/org/rocksdb/HistogramType.java

@@ -0,0 +1,39 @@
+// Copyright (c) 2014, Facebook, Inc.  All rights reserved.
+// This source code is licensed under the BSD-style license found in the
+// LICENSE file in the root directory of this source tree. An additional grant
+// of patent rights can be found in the PATENTS file in the same directory.
+
+package org.rocksdb;
+
+public enum HistogramType {
+  DB_GET(0),
+  DB_WRITE(1),
+  COMPACTION_TIME(2),
+  TABLE_SYNC_MICROS(3),
+  COMPACTION_OUTFILE_SYNC_MICROS(4),
+  WAL_FILE_SYNC_MICROS(5),
+  MANIFEST_FILE_SYNC_MICROS(6),
+  // TIME SPENT IN IO DURING TABLE OPEN
+  TABLE_OPEN_IO_MICROS(7),
+  DB_MULTIGET(8),
+  READ_BLOCK_COMPACTION_MICROS(9),
+  READ_BLOCK_GET_MICROS(10),
+  WRITE_RAW_BLOCK_MICROS(11),
+
+  STALL_L0_SLOWDOWN_COUNT(12),
+  STALL_MEMTABLE_COMPACTION_COUNT(13),
+  STALL_L0_NUM_FILES_COUNT(14),
+  HARD_RATE_LIMIT_DELAY_COUNT(15),
+  SOFT_RATE_LIMIT_DELAY_COUNT(16),
+  NUM_FILES_IN_SINGLE_COMPACTION(17);
+  
+  private final int value_;
+    
+  private HistogramType(int value) {
+    value_ = value;
+  }
+  
+  public int getValue() {
+    return value_;
+  }       
+}