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*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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*/
/*
* @test
* @bug 5004188
* @summary Tests sequence of listeners
* @author Sergey Malenkov
*/
import java.beans.PropertyChangeEvent;
import java.beans.PropertyVetoException;
import java.beans.VetoableChangeListener;
import java.beans.VetoableChangeListenerProxy;
import java.beans.VetoableChangeSupport;
public final class TestListeners implements VetoableChangeListener {
private static final String NAME = "property";
private static final String NONE = "broken";
private static int current;
public static void main(String[] args) throws PropertyVetoException {
VetoableChangeSupport vcs = new VetoableChangeSupport(TestListeners.class);
vcs.addVetoableChangeListener(new TestListeners(0));
vcs.addVetoableChangeListener(NAME, new TestListeners(2));
vcs.addVetoableChangeListener(new TestListeners(1));
vcs.addVetoableChangeListener(NAME, new VetoableChangeListenerProxy(NAME, new TestListeners(3)));
current = 0;
vcs.fireVetoableChange(NAME, 0, 1);
if (current != 4)
throw new Error("Expected 4 listeners, but called " + current);
current = 0;
vcs.fireVetoableChange(NONE, 1, 0);
if (current != 2)
throw new Error("Expected 2 listeners, but called " + current);
VetoableChangeListener[] all = vcs.getVetoableChangeListeners();
if (all.length != 4)
throw new Error("Expected 4 listeners, but contained " + all.length);
VetoableChangeListener[] named = vcs.getVetoableChangeListeners(NAME);
if (named.length != 2)
throw new Error("Expected 2 named listeners, but contained " + named.length);
VetoableChangeListener[] other = vcs.getVetoableChangeListeners(NONE);
if (other.length != 0)
throw new Error("Expected 0 other listeners, but contained " + other.length);
vcs.removeVetoableChangeListener(new TestListeners(0));
vcs.removeVetoableChangeListener(new TestListeners(1));
vcs.removeVetoableChangeListener(NAME, new TestListeners(2));
vcs.removeVetoableChangeListener(NAME, new VetoableChangeListenerProxy(NAME, new TestListeners(3)));
all = vcs.getVetoableChangeListeners();
if (all.length != 0)
throw new Error("Expected 4 listeners, but contained " + all.length);
named = vcs.getVetoableChangeListeners(NAME);
if (named.length != 0)
throw new Error("Expected 2 named listeners, but contained " + named.length);
other = vcs.getVetoableChangeListeners(NONE);
if (other.length != 0)
throw new Error("Expected 0 other listeners, but contained " + other.length);
}
private final int index;
public TestListeners(int index) {
this.index = index;
}
public void vetoableChange(PropertyChangeEvent event) {
if (this.index < 0)
throw new Error("Unexpected listener: " + this.index);
System.out.println("index = " + this.index);
if (this.index != current++)
throw new Error("Unexpected listener: " + this.index);
}
@Override
public boolean equals(Object object) {
if (object instanceof TestListeners) {
TestListeners test = (TestListeners)object;
return test.index == this.index;
}
return false;
}
@Override
public int hashCode() {
return this.index;
}
}