Android Open Source - bad Bad Var

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License

The source code is released under:

Copyright (C) 2013 Madis Pink Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Softwa...

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Java Source Code

package com.madisp.bad.eval;
/*  w w  w  . j a  va2s . c o  m*/
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

/**
 * Created with IntelliJ IDEA.
 * User: madis
 * Date: 3/20/13
 * Time: 9:04 AM
 */
public class BadVar<T> {
  private T var;

  private Set<BadWatcher> watchers = new HashSet<BadWatcher>();

  public BadVar() {
  }

  public BadVar(T value) {
    this.var = value;
  }

  public T get() {
    return var;
  }

  public void set(T value) {
    set(value, null);
  }

  public void set(T value, BadWatcher origin) {
    if (value instanceof List) {
      value = (T)BadCollections.wrapList(this, (List)value);
    } else if (value instanceof Collection) {
      value = (T)BadCollections.wrapCollection(this, (Collection)value);
    }
    this.var = value;
    dispatchFire(origin);
  }

  public void dispatchFire() {
    dispatchFire(null);
  }

  public void dispatchFire(BadWatcher origin) {
    for (BadWatcher w : watchers) {
      if (origin != null && origin == w) {
        continue;
      }
      w.fire(this);
    }
  }

  public void addWatcher(BadWatcher<T> watcher) {
    watchers.add(watcher);
    watcher.fire(this);
  }

  public void removeWatcher(BadWatcher<T> watcher) {
    watchers.remove(watcher);
  }

  public interface BadWatcher<T> {
    void fire(BadVar<T> var);
  }
}

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