Android Open Source - Jello Space Manager Native

From Project

Back to project page Jello.

License

The source code is released under:

Apache License

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Java Source Code

package com.atteo.jello.space;
//from  www  .j a  v a  2 s  .  co m
import com.atteo.jello.Record;
import com.atteo.jello.store.ListPage;
import com.atteo.jello.store.PagedFile;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import com.google.inject.name.Named;

@Singleton
public class SpaceManagerNative implements SpaceManager {
  // TODO: currently keeps all freeSpaceInfo pages in memory
  static {
    System.loadLibrary("SpaceManagerNative");
  }

  @Inject
  public SpaceManagerNative(
      final PagedFile pagedFile,
      final ListPage listPage,
      @Named("freeSpaceInfoSize") final short freeSpaceInfoSize,
      @Named("freeSpaceInfosPerPage") final short freeSpaceInfosPerPage,
      @Named("freeSpaceInfoPageCapacity") final short freeSpaceInfoPageCapacity,
      @Named("blockSize") final short blockSize,
      @Named("freeSpaceInfoPageId") final int freeSpaceInfoPageId) {

    init(pagedFile, listPage, freeSpaceInfosPerPage, freeSpaceInfoSize,
        freeSpaceInfoPageCapacity, freeSpaceInfoPageId, blockSize);

  }

  public native void commit();

  public native void create();

  public native short freeSpaceOnPage(int id);

  public native void init(PagedFile pagedFile, ListPage listPage,
      short freeSpaceInfosPerPage, short freeSpaceInfoSize,
      short freeSpaceInfoPageCapacity, int freeSpaceInfoPageId,
      short blockSize);

  public native boolean isBlockUsed(int id, short block);

  public native boolean isPageUsed(int id);

  public native boolean load();

  public native void setBlockUsed(int id, short block, boolean used);

  public native void setPageUsed(int id, boolean used);

  public native void setRecordUsed(Record record, boolean used);

  public native long totalFreeSpace();

  public native void update();
}

Java Source Code List