Example usage for java.lang ClassCastException ClassCastException

Introduction

In this page you can find the example usage for java.lang ClassCastException ClassCastException.

Prototype

public ClassCastException(String s)

Source Link

Document

Constructs a ClassCastException with the specified detail message.

Usage

From source file:Main.java

/**
 * Typecheck as above, performing on map values
 * @param <K>    Key type//w  ww.  ja  v a2  s . c  o m
 * @param <V>    Designated value type
 * @param m      the map to check
 * @param vClass the value type's class
 * @return m, accordingly cast, if no classCastException is thrown
 * 
 * @deprecated In the most common use case this is unnecessary. In the second
 *       common use case this is a sign that you have not understood generics.
 */
public static <K, V> Map<K, V> typecheck(Map<K, ?> m, Class<V> vClass) {
    if (m == null)
        return null;
    for (Map.Entry<K, ?> e : m.entrySet()) {
        Object o = e.getValue();
        if (o != null && !vClass.isInstance(o))
            throw new ClassCastException("ClassCast from " + o.getClass() + " to " + vClass);
    }
    return (Map<K, V>) m;
}

From source file:com.sawyer.advadapters.app.adapters.nfjsonadapter.NFJSONAdapterFragment.java

@Override
public void setListAdapter(ListAdapter adapter) {
    if (adapter instanceof MovieNFJSONArrayAdapter) {
        super.setListAdapter(adapter);
    } else {/*ww w .ja va  2s.  c  om*/
        throw new ClassCastException(
                "Adapter must be of type " + MovieNFJSONArrayAdapter.class.getSimpleName());
    }
}

From source file:dtu.ds.warnme.app.dialog.RegisterDialog.java

@Override
public void onAttach(Activity activity) {
    super.onAttach(activity);
    try {/*from   w ww  .  ja  va2s.  c o m*/
        listener = (RegisterDialogListener) activity;
    } catch (ClassCastException ex) {
        throw new ClassCastException(activity.toString() + " must implement RegisterDialogListener");
    }
}

From source file:com.wormsim.animals.AnimalGroup.java

/**
 * Note: The natural ordering of this class foregoes the natural declaration
 * of equals(), or something like that.//from   ww w  .j  a  va  2  s  . com
 *
 * @param p_o
 *
 * @return
 */
@Override
public int compareTo(Object p_o) {
    if (p_o instanceof AnimalGroup) {
        AnimalGroup that = (AnimalGroup) p_o;
        return that.dev_time_rem > this.dev_time_rem ? -1
                : (that.dev_time_rem < this.dev_time_rem ? 1
                        : (that.animal.hashCode() - this.animal.hashCode()));
    } else {
        throw new ClassCastException("Invalid Class: " + p_o.getClass());
    }
}

From source file:ca.etsmtl.applets.etsmobile.fragments.NewsListFragment.java

@Override
public void onAttach(final Activity activity) {
    super.onAttach(activity);
    try {/*from w ww.  j  ava  2  s  . co m*/
        selectedItemListener = (NewsListSelectedItemListener) activity;
    } catch (final ClassCastException e) {
        throw new ClassCastException(activity.toString()
                + "l'activit doit implmenter l'interface NewsListSelectedItemListener");
    }
}

From source file:com.bashlord.loginregister.nearbyR.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.nearby_list);

    FragmentManager fm = getSupportFragmentManager();
    PlacePickerFragment fragment = (PlacePickerFragment) fm.findFragmentByTag(FRAGTAG);

    if (fragment == null) {
        FragmentTransaction transaction = fm.beginTransaction();
        fragment = new PlacePickerFragment();
        transaction.add(fragment, FRAGTAG);
        transaction.commit();/*from  w  w w .  j  a  v a2s . co m*/
    }

    // Use fragment as click listener for cards, but must implement correct interface
    if (!(fragment instanceof OnCardClickListener)) {
        throw new ClassCastException("PlacePickerFragment must " + "implement OnCardClickListener interface.");
    }
    OnCardClickListener clickListener = (OnCardClickListener) fm.findFragmentByTag(FRAGTAG);

    mRetentionFragment = (StreamRetentionFragment) fm.findFragmentByTag(RETENTION_TAG);
    if (mRetentionFragment == null) {
        mRetentionFragment = new StreamRetentionFragment();
        fm.beginTransaction().add(mRetentionFragment, RETENTION_TAG).commit();
    } else {
        // If the retention fragment already existed, we need to pull some state.
        // pull state out
        CardStreamState state = mRetentionFragment.getCardStream();

        // dump it in CardStreamFragment.
        mCardStreamFragment = (CardStreamFragment) fm.findFragmentById(R.id.fragment_cardstream);
        mCardStreamFragment.restoreState(state, clickListener);
    }
}

From source file:br.com.bioscada.apps.biotracks.fragments.DeleteMarkerDialogFragment.java

@Override
public void onAttach(Activity activity) {
    super.onAttach(activity);
    try {//from  www  .ja va 2s  .c om
        caller = (DeleteMarkerCaller) activity;
    } catch (ClassCastException e) {
        throw new ClassCastException(
                activity.toString() + " must implement " + DeleteMarkerCaller.class.getSimpleName());
    }
}

From source file:com.appdynamics.demo.gasp.fragment.PlayServicesDialogFragment.java

@Override
public void onAttach(Activity activity) {
    super.onAttach(activity);
    try {/*  ww  w .  j av  a2s.  c o m*/
        // Instantiate the NoticeDialogListener so we can send events to the host
        PlayServicesDialogListener mListener = (PlayServicesDialogListener) activity;
    } catch (ClassCastException e) {
        // The activity doesn't implement the interface, throw exception
        throw new ClassCastException(activity.toString() + " must implement PlayServicesDialogListener");
    }
}

From source file:br.com.d4n.ui4entity.mvc.ValueOptionReturnValueHandler.java

@SuppressWarnings("rawtypes")
@Override//  w  w w .jav a  2 s  .c o m
public void handleReturnValue(Object returnValue, MethodParameter returnType,
        ModelAndViewContainer mavContainer, NativeWebRequest webRequest) throws Exception {

    if (returnType.getMethodAnnotation(ValueOptions.class) != null) {

        Map<String, Object> map = new HashMap<String, Object>();
        if (returnValue instanceof List) {

            map.put("type", "list");
        } else if (returnValue instanceof Map) {

            returnValue = ((Map) returnValue).entrySet();
            map.put("type", "map");
        } else
            throw new ClassCastException("@ValueOptions method must be return Map or List");

        map.put(ValueOptionsProviderResolver.OPTIONS_ATTR_NAME, returnValue);
        returnValue = map;

        returnType = new UI4EntityMethodParameter(returnType, returnValue.getClass());
    }

    delegate.handleReturnValue(returnValue, returnType, mavContainer, webRequest);
}

From source file:com.digi.android.wva.fragments.PreConnectionDialog.java

@Override
public void onAttach(Activity activity) {
    super.onAttach(activity);
    if (!(activity instanceof PreConnectionDialogListener)) {
        throw new ClassCastException(activity.toString() + " must implement AuthenticationDialogListener!");
    }/* ww w.  java  2s  .  co m*/
}