Android Open Source - spades Cursor Info Builder

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License

The source code is released under:

Apache License

Java Source Code

/**
 * Copyright (C) 2013 Pau Picas Sans <pau.picas@gmail.com>
 *//from  w w w.  ja  va 2 s. c o m
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package cat.picas.spades;

import java.util.Arrays;

public class CursorInfoBuilder {

  private final Tables mTables = Tables.getInstance();
  private int mOffset = 0;
  private boolean[] mHasTables;
  private int[][] mColumnIndexes;

  public CursorInfoBuilder() {
    mHasTables = new boolean[mTables.size()];
    Arrays.fill(mHasTables, false);

    mColumnIndexes = new int[mTables.size()][];
    for (Table table : mTables.getTables()) {
      mColumnIndexes[table.index] = new int[table.getColumnsSize()];
      Arrays.fill(mColumnIndexes[table.index], CursorInfo.INVALID_INDEX);
    }
  }

  public CursorInfoBuilder addOffset() {
    mOffset++;
    return this;
  }

  public CursorInfoBuilder addOffset(int inc) {
    mOffset += inc;
    return this;
  }

  public CursorInfoBuilder add(Table table) {
    add(table.getColumns());
    return this;
  }

  public CursorInfoBuilder add(Column column) {
    Table table = column.getTable();
    if (mColumnIndexes[table.index][column.index] == CursorInfo.INVALID_INDEX) {
      mHasTables[table.index] = true;
      mColumnIndexes[table.index][column.index] = mOffset++;
    }

    return this;
  }

  public CursorInfoBuilder add(Iterable<? extends Column> columns) {
    for (Column column : columns) {
      add(column);
    }
    return this;
  }

  public CursorInfoBuilder add(Column... columns) {
    for (Column column : columns) {
      add(column);
    }
    return this;
  }

  public CursorInfo build() {
    return new CursorInfo(mHasTables, mColumnIndexes);
  }

}

Java Source Code List

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