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 /*
  *  Copyright 2001-2005 Stephen Colebourne
  *
  *  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 org.joda.time.convert;
NullConverter converts null to an instant, partial, duration, period or interval. Null means now for instant/partial, zero for duration/period and from now to now for interval.

Author(s):
Stephen Colebourne
Brian S O'Neill
Since:
1.0
Singleton instance.
    static final NullConverter INSTANCE = new NullConverter();

    
Restricted constructor.
    protected NullConverter() {
        super();
    }
    //-----------------------------------------------------------------------
    
Gets the millisecond duration, which is zero.

Parameters:
object the object to convert, which is null
Returns:
the millisecond duration
    public long getDurationMillis(Object object) {
        return 0L;
    }
    //-----------------------------------------------------------------------
    
Sets the given ReadWritableDuration to zero milliseconds.

Parameters:
duration duration to get modified
object the object to convert, which is null
chrono the chronology to use
Throws:
java.lang.NullPointerException if the duration is null
    public void setInto(ReadWritablePeriod durationObject objectChronology chrono) {
        duration.setPeriod((Periodnull);
    }
    //-----------------------------------------------------------------------
    
Extracts interval endpoint values from an object of this converter's type, and sets them into the given ReadWritableInterval.

Parameters:
writableInterval interval to get modified, not null
object the object to convert, which is null
chrono the chronology to use, may be null
Throws:
java.lang.NullPointerException if the interval is null
    public void setInto(ReadWritableInterval writableIntervalObject objectChronology chrono) {
        writableInterval.setChronology(chrono);
        long now = DateTimeUtils.currentTimeMillis();
        writableInterval.setInterval(nownow);
    }
    //-----------------------------------------------------------------------
    
Returns null.

Returns:
null
    public Class getSupportedType() {
        return null;
    }
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