01: /*
02: * Copyright 2001-2005 Stephen Colebourne
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS,
12: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13: * See the License for the specific language governing permissions and
14: * limitations under the License.
15: */
16: package org.joda.time.convert;
17:
18: import org.joda.time.Chronology;
19:
20: /**
21: * LongConverter converts a Long to an instant, partial or duration.
22: * The Long value represents milliseconds in the ISO chronology.
23: *
24: * @author Stephen Colebourne
25: * @author Brian S O'Neill
26: * @since 1.0
27: */
28: class LongConverter extends AbstractConverter implements
29: InstantConverter, PartialConverter, DurationConverter {
30:
31: /**
32: * Singleton instance.
33: */
34: static final LongConverter INSTANCE = new LongConverter();
35:
36: /**
37: * Restricted constructor.
38: */
39: protected LongConverter() {
40: super ();
41: }
42:
43: //-----------------------------------------------------------------------
44: /**
45: * Gets the millisecond instant, which is the Long value.
46: *
47: * @param object the Long to convert, must not be null
48: * @param chrono the chronology to use, which is always non-null
49: * @return the millisecond value
50: * @throws NullPointerException if the object is null
51: * @throws ClassCastException if the object is an invalid type
52: */
53: public long getInstantMillis(Object object, Chronology chrono) {
54: return ((Long) object).longValue();
55: }
56:
57: //-----------------------------------------------------------------------
58: /**
59: * Gets the millisecond duration, which is the Long value.
60: *
61: * @param object the Long to convert, must not be null
62: * @return the millisecond duration
63: * @throws NullPointerException if the object is null
64: * @throws ClassCastException if the object is an invalid type
65: */
66: public long getDurationMillis(Object object) {
67: return ((Long) object).longValue();
68: }
69:
70: //-----------------------------------------------------------------------
71: /**
72: * Returns Long.class.
73: *
74: * @return Long.class
75: */
76: public Class getSupportedType() {
77: return Long.class;
78: }
79:
80: }
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