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Easy Redis Java client and Real-Time Data Platform. Valkey compatible. Sync/Async/RxJava3/Reactive API. Client side caching. Over 50 Redis based Java objects and services: JCache API, Apache Tomcat, Hibernate, Spring, Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Scheduler, RPC
package com.fasterxml.jackson.databind.node;
import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;
import com.fasterxml.jackson.core.*;
import com.fasterxml.jackson.databind.*;
/**
* Numeric node that contains values that do not fit in simple
* integer (int, long) or floating point (double) values.
*/
@SuppressWarnings("serial")
public class DecimalNode
extends NumericNode
{
public static final DecimalNode ZERO = new DecimalNode(BigDecimal.ZERO);
private final static BigDecimal MIN_INTEGER = BigDecimal.valueOf(Integer.MIN_VALUE);
private final static BigDecimal MAX_INTEGER = BigDecimal.valueOf(Integer.MAX_VALUE);
private final static BigDecimal MIN_LONG = BigDecimal.valueOf(Long.MIN_VALUE);
private final static BigDecimal MAX_LONG = BigDecimal.valueOf(Long.MAX_VALUE);
final protected BigDecimal _value;
/*
/**********************************************************
/* Construction
/**********************************************************
*/
public DecimalNode(BigDecimal v) { _value = v; }
public static DecimalNode valueOf(BigDecimal d) { return new DecimalNode(d); }
/*
/**********************************************************
/* BaseJsonNode extended API
/**********************************************************
*/
@Override public JsonToken asToken() { return JsonToken.VALUE_NUMBER_FLOAT; }
@Override
public JsonParser.NumberType numberType() { return JsonParser.NumberType.BIG_DECIMAL; }
/*
/**********************************************************
/* Overrridden JsonNode methods
/**********************************************************
*/
@Override
public boolean isFloatingPointNumber() { return true; }
@Override
public boolean isBigDecimal() { return true; }
@Override public boolean canConvertToInt() {
return (_value.compareTo(MIN_INTEGER) >= 0) && (_value.compareTo(MAX_INTEGER) <= 0);
}
@Override public boolean canConvertToLong() {
return (_value.compareTo(MIN_LONG) >= 0) && (_value.compareTo(MAX_LONG) <= 0);
}
@Override // since 2.12
public boolean canConvertToExactIntegral() {
return (_value.signum() == 0)
|| (_value.scale() <= 0)
|| (_value.stripTrailingZeros().scale() <= 0);
}
@Override
public Number numberValue() { return _value; }
@Override
public short shortValue() { return _value.shortValue(); }
@Override
public int intValue() { return _value.intValue(); }
@Override
public long longValue() { return _value.longValue(); }
@Override
public BigInteger bigIntegerValue() {
return _bigIntFromBigDec(_value);
}
@Override
public float floatValue() { return _value.floatValue(); }
@Override
public double doubleValue() { return _value.doubleValue(); }
@Override
public BigDecimal decimalValue() { return _value; }
@Override
public String asText() {
return _value.toString();
}
@Override
public final void serialize(JsonGenerator g, SerializerProvider provider)
throws IOException
{
g.writeNumber(_value);
}
@Override
public boolean equals(Object o)
{
if (o == this) return true;
if (o == null) return false;
if (o instanceof DecimalNode) {
DecimalNode otherNode = (DecimalNode) o;
if (otherNode._value == null) {
return _value == null;
} else if (_value == null) {
return false;
}
return otherNode._value.compareTo(_value) == 0;
}
return false;
}
@Override
public int hashCode() {
if (_value == null) {
// we need a stable hash code for _value == null
return 0;
}
// 13-Feb-2024, tatu: Looks weird, but needed for 2.x invariant
// where equality tries to account for differences in trailing
// zeroes etc (see `equals()` above)
return Double.hashCode(doubleValue());
}
}
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