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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.document.datatypes;
import com.yahoo.document.DataType;
import com.yahoo.document.Field;
import com.yahoo.document.PrimitiveDataType;
import com.yahoo.document.serialization.FieldReader;
import com.yahoo.document.serialization.FieldWriter;
import com.yahoo.document.serialization.XmlSerializationHelper;
import com.yahoo.document.serialization.XmlStream;
import com.yahoo.vespa.objects.Ids;
/**
* A 64-bit float field value
*
* @author Einar M R Rosenvinge
*/
public final class DoubleFieldValue extends NumericFieldValue {
private static class Factory extends PrimitiveDataType.Factory {
@Override public FieldValue create() { return new DoubleFieldValue(); }
@Override public FieldValue create(String value) { return new DoubleFieldValue(value); }
}
public static PrimitiveDataType.Factory getFactory() { return new Factory(); }
public static final int classId = registerClass(Ids.document + 14, DoubleFieldValue.class);
private double value;
public DoubleFieldValue() {
this(0.0);
}
public DoubleFieldValue(double value) {
this.value = value;
}
public DoubleFieldValue(Double value) {
this.value = value;
}
public DoubleFieldValue(String s) { value = Double.parseDouble(s); }
@Override
public DoubleFieldValue clone() {
DoubleFieldValue val = (DoubleFieldValue) super.clone();
val.value = value;
return val;
}
@Override
public void clear() {
value = 0.0;
}
@Override
public Number getNumber() {
return value;
}
@Override
public void assign(Object obj) {
if (!checkAssign(obj)) {
return;
}
if (obj instanceof Number) {
value = ((Number) obj).doubleValue();
} else if (obj instanceof NumericFieldValue) {
value = (((NumericFieldValue) obj).getNumber().doubleValue());
} else if (obj instanceof String || obj instanceof StringFieldValue) {
value = Double.parseDouble(obj.toString());
} else {
throw new IllegalArgumentException("Class " + obj.getClass() + " not applicable to an " + this.getClass() + " instance.");
}
}
public double getDouble() {
return value;
}
@Override
public Object getWrappedValue() {
return value;
}
@Override
public DataType getDataType() {
return DataType.DOUBLE;
}
@Override
@Deprecated
public void printXml(XmlStream xml) {
XmlSerializationHelper.printDoubleXml(this, xml);
}
@Override
public String toString() {
return "" + value;
}
@Override
public int hashCode() {
int result = super.hashCode();
long temp;
temp = value != +0.0d ? Double.doubleToLongBits(value) : 0L;
result = 31 * result + (int) (temp ^ (temp >>> 32));
return result;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof DoubleFieldValue)) return false;
if (!super.equals(o)) return false;
DoubleFieldValue that = (DoubleFieldValue) o;
if (Double.compare(that.value, value) != 0) return false;
return true;
}
@Override
public void serialize(Field field, FieldWriter writer) {
writer.write(field, this);
}
/* (non-Javadoc)
* @see com.yahoo.document.datatypes.FieldValue#deserialize(com.yahoo.document.Field, com.yahoo.document.serialization.FieldReader)
*/
@Override
public void deserialize(Field field, FieldReader reader) {
reader.read(field, this);
}
@Override
public int compareTo(FieldValue fieldValue) {
int comp = super.compareTo(fieldValue);
if (comp != 0) {
return comp;
}
//types are equal, this must be of this type
DoubleFieldValue otherValue = (DoubleFieldValue) fieldValue;
return Double.compare(value, otherValue.value);
}
}
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