Android Open Source - interdroid-swan History Reduction Mode

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License

The source code is released under:

Copyright (c) 2008-2011 Vrije Universiteit, The Netherlands All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the follo...

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Java Source Code

package interdroid.swan.swansong;
//from w  w w  .ja v a 2  s  .c o  m
/**
 * Represents the way an expression reduces the history it examines and performs
 * matching.
 * 
 * @author roelof &lt;rkemp@cs.vu.nl&gt;
 * @author nick &lt;palmer@cs.vu.nl&gt;
 * 
 */
public enum HistoryReductionMode implements ParseableEnum<HistoryReductionMode> {
  /** No reduction is performed, matching is against all values. */
  ALL(0, "ALL"),
  /** Takes the maximum value. */
  MAX(1, "MAX"),
  /** Takes the minimum value. */
  MIN(2, "MIN"),
  /** Takes the mean value. */
  MEAN(3, "MEAN"),
  /** Takes the median value. */
  MEDIAN(4, "MEDIAN"),
  /** No reduction is performed, matching is against any value. */
  ANY(5, "ANY");

  /** The default HistoryReductionMode for all expressions. */
  public static final HistoryReductionMode DEFAULT_MODE = HistoryReductionMode.ALL;

  /** The convert value. */
  private final int mValue;

  /** The name for the mode. */
  private final String mName;

  /**
   * Construct with the given convert value.
   * 
   * @param value
   *            the convert value.
   * @param name
   *            the name
   */
  private HistoryReductionMode(final int value, final String name) {
    mValue = value;
    mName = name;
  }

  @Override
  public int convert() {
    return mValue;
  }

  @Override
  public HistoryReductionMode convertInt(final int val) {
    HistoryReductionMode ret = null;
    for (HistoryReductionMode mode : HistoryReductionMode.values()) {
      if (mode.convert() == val) {
        ret = mode;
        break;
      }
    }
    return ret;
  }

  /**
   * Parses a string and returns the appropriate mode.
   * 
   * @param val
   *            the string to parse
   * @return the reduction mode
   */
  private static HistoryReductionMode parseString(final String val) {
    HistoryReductionMode ret = null;
    for (HistoryReductionMode mode : HistoryReductionMode.values()) {
      if (mode.toParseString().equals(val)) {
        ret = mode;
        break;
      }
    }
    return ret;
  }

  /**
   * Parse a string and return the value.
   * 
   * @param value
   *            the value to parse
   * @return the enum which matches the string.
   */
  public static HistoryReductionMode parse(final String value) {
    return HistoryReductionMode.parseString(value);
  }

  /**
   * Converts a persisted int to the matching enumeration value.
   * 
   * @param value
   *            the value to get the enumeration for
   * @return the enumeration matching this value
   */
  public static HistoryReductionMode convert(final int value) {
    return ALL.convertInt(value);
  }

  @Override
  public final String toString() {
    return mName;
  }

  @Override
  public final String toParseString() {
    return mName;
  }
}

Java Source Code List