001: // Copyright (c) 2003-2007, Jodd Team (jodd.sf.net). All Rights Reserved.
002:
003: package jodd.mutable;
004:
005: /**
006: * A mutable <code>long</code> wrapper.
007: */
008: public final class MutableLong extends Number implements Comparable {
009:
010: public MutableLong() {
011: super ();
012: }
013:
014: public MutableLong(long value) {
015: super ();
016: this .value = value;
017: }
018:
019: public MutableLong(String value) {
020: this (Long.parseLong(value));
021: }
022:
023: // ---------------------------------------------------------------- value
024:
025: /**
026: * The mutable value.
027: */
028: public long value;
029:
030: /**
031: * Returns mutable value.
032: */
033: public long getValue() {
034: return value;
035: }
036:
037: /**
038: * Sets mutable value.
039: */
040: public void setValue(long value) {
041: this .value = value;
042: }
043:
044: /**
045: * Sets mutable value from a Number.
046: */
047: public void setValue(Number value) {
048: this .value = value.longValue();
049: }
050:
051: // ---------------------------------------------------------------- object
052:
053: /**
054: * Stringify the value.
055: */
056: @Override
057: public String toString() {
058: return Long.toString(value);
059: }
060:
061: /**
062: * Returns a hashcode for this value.
063: */
064: @Override
065: public int hashCode() {
066: return (int) (value ^ (value >>> 32));
067: }
068:
069: /**
070: * Compares this object to the specified object.
071: *
072: * @param obj the object to compare with.
073: * @return <code>true</code> if the objects are the same;
074: * <code>false</code> otherwise.
075: */
076: @Override
077: public boolean equals(Object obj) {
078: if (obj != null) {
079: if (obj instanceof Long) {
080: return value == ((Long) obj).longValue();
081: }
082: if (obj instanceof MutableLong) {
083: return value == ((MutableLong) obj).value;
084: }
085: }
086: return false;
087: }
088:
089: // ---------------------------------------------------------------- number
090:
091: /**
092: * Returns the value as a int.
093: */
094: @Override
095: public int intValue() {
096: return (int) value;
097: }
098:
099: /**
100: * Returns the value as a long.
101: */
102: @Override
103: public long longValue() {
104: return value;
105: }
106:
107: /**
108: * Returns the value as a float.
109: */
110: @Override
111: public float floatValue() {
112: return value;
113: }
114:
115: /**
116: * Returns the value as a double.
117: */
118: @Override
119: public double doubleValue() {
120: return value;
121: }
122:
123: // ---------------------------------------------------------------- compare
124:
125: /**
126: * Comares value of two same instances.
127: */
128: public int compareTo(Object obj) {
129: MutableLong other = (MutableLong) obj;
130: return value < other.value ? -1
131: : (value == other.value ? 0 : 1);
132: }
133: }
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