Exemplo n.º 1
0
  /**
   * restores one of the saved tables as the current table. Note that the table that was current up
   * to this point will be dropped. Also there will be one less 'saved' table after this operation.
   *
   * @param suffix the <code>String</code> to append to the name of the current table in order to
   *     form the old table name
   * @return success if true
   */
  public boolean loadFrom(String suffix) {
    if (!notNullOrEmpty(suffix)) return false;

    String oldTableName = ShareUtil.tableName(suffix);
    if (!savedTables().contains(oldTableName)) return false;

    for (int index : savedTableIndices()) {
      String newTableName = tableList.get(index);
      oldTableName = ShareUtil.tableName(newTableName, suffix);
      if (tableExists(oldTableName)) rename(oldTableName, newTableName);
      else create(newTableName);
    }

    Log.i(TAG, String.format("table loaded from '%s'", oldTableName));
    return true;
  }
Exemplo n.º 2
0
  /**
   * The transaction registers the negated sum of the shares as an expense by a group of
   * contributors. Additionally all the shares in the map are registered with the same entry id.
   * Those names in the deals map that are empty <code>String</code> trigger transfers of internal
   * amounts. Such an internal transfer is not allowed if the transaction causes a negative total.
   *
   * @param deals the names of the contributors and their contributions who expended an amount
   *     matching the negated sum of the deals
   * @param comment a <code>String</code> to make the transaction recognizable
   * @param shares a <code>ShareMap</code> containing the shares of participants involved
   * @return the entry id of the transaction or a negative value in case the transaction failed
   */
  public int performComplexExpense(ShareMap deals, String comment, ShareMap shares) {
    int entryId = -1;

    int transactionCode = 3;
    int flags = composeFlags(transactionCode, true);

    double amount = deals.sum();
    if (Math.abs(amount + shares.sum()) < ShareUtil.delta) {
      if (deals.option != null)
        switch (deals.option) {
          default:
            setDebtLimit(1000. * deals.option);
            break;
        }

      if (deals.rawMap.containsKey(kitty))
        entryId = performTransfer(kitty, -deals.rawMap.get(kitty), comment, kitty);
      else entryId = getNewEntryId();

      Collection<String> dealers = ShareUtil.filter(deals.rawMap.keySet(), true, ShareUtil.isKitty);

      for (String name : dealers) {
        long rowId =
            addRecord(
                entryId,
                name,
                deals.rawMap.get(name),
                currency,
                Helper.timestampNow(),
                comment,
                flags);
        if (rowId < 0) {
          entryId = -1;
          break;
        }
      }
    } else
      Log.w(
          TAG,
          String.format(
              "the sum of the deals (%f) for '%s' doesn't match the sum of the shares (%f)",
              amount, comment, shares.sum()));

    if (entryId > -1) {
      if (allocate(flags, entryId, shares.rawMap)) {
        Log.i(
            TAG,
            String.format(
                "entry %d: %s expended %f %s for '%s' shared by %s",
                entryId, deals.toString(), Math.abs(amount), currency, comment, shares.toString()));
      } else {
        removeEntry(entryId);
        entryId = -1;
      }
    }

    if (entryId < 0) removeEntry(entryId);

    return entryId;
  }
Exemplo n.º 3
0
  /**
   * changes the name of the table that has been worked on (current table). Thus this table is
   * 'saved' in the same database. Note that the current table is non-existing after this operation.
   * In order to continue the current table has to be restored (loadFrom) or recreated (clear).
   *
   * @param suffix the <code>String</code> to append to the name of the current table in order to
   *     form the new table name
   * @return success if true
   */
  public boolean saveAs(String suffix) {
    if (!notNullOrEmpty(suffix)) return false;

    String newTableName = ShareUtil.tableName(suffix);
    if (savedTables().contains(newTableName)) return false;

    for (int index : savedTableIndices()) {
      String oldTableName = tableList.get(index);
      if (tableExists(oldTableName) && getCount(oldTableName) > 0) {
        newTableName = ShareUtil.tableName(oldTableName, suffix);
        rename(oldTableName, newTableName);
      } else drop(oldTableName);
    }

    Log.i(TAG, String.format("table saved as '%s'", newTableName));
    return true;
  }