org.forstdb.VectorMemTableConfig Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of forstjni Show documentation

ForSt fat jar with modifications specific for Apache Flink that contains .so files for linux32 and linux64 (glibc and musl-libc), jnilib files for Mac OSX, and a .dll for Windows x64.

There is a newer version: 0.1.2-beta

Show newest version

// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
package org.forstdb;

/**
 * The config for vector memtable representation.
 */
public class VectorMemTableConfig extends MemTableConfig {
  public static final int DEFAULT_RESERVED_SIZE = 0;

  /**
   * VectorMemTableConfig constructor
   */
  public VectorMemTableConfig() {
    reservedSize_ = DEFAULT_RESERVED_SIZE;
  }

  /**
   * Set the initial size of the vector that will be used
   * by the memtable created based on this config.
   *
   * @param size the initial size of the vector.
   * @return the reference to the current config.
   */
  public VectorMemTableConfig setReservedSize(final int size) {
    reservedSize_ = size;
    return this;
  }

  /**
   * Returns the initial size of the vector used by the memtable
   * created based on this config.
   *
   * @return the initial size of the vector.
   */
  public int reservedSize() {
    return reservedSize_;
  }

  @Override protected long newMemTableFactoryHandle() {
    return newMemTableFactoryHandle(reservedSize_);
  }

  private native long newMemTableFactoryHandle(long reservedSize)
      throws IllegalArgumentException;
  private int reservedSize_;
}