com.mysql.cj.result.FloatValueFactory Maven / Gradle / Ivy
/*
* Copyright (c) 2015, 2020, Oracle and/or its affiliates.
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, version 2.0, as published by the
* Free Software Foundation.
*
* This program is also distributed with certain software (including but not
* limited to OpenSSL) that is licensed under separate terms, as designated in a
* particular file or component or in included license documentation. The
* authors of MySQL hereby grant you an additional permission to link the
* program and your derivative works with the separately licensed software that
* they have included with MySQL.
*
* Without limiting anything contained in the foregoing, this file, which is
* part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
* version 1.0, a copy of which can be found at
* http://oss.oracle.com/licenses/universal-foss-exception.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License, version 2.0,
* for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package com.mysql.cj.result;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.nio.ByteBuffer;
import com.mysql.cj.Constants;
import com.mysql.cj.Messages;
import com.mysql.cj.conf.PropertySet;
import com.mysql.cj.exceptions.NumberOutOfRange;
/**
* A value factory for creating float values.
*/
public class FloatValueFactory extends AbstractNumericValueFactory {
public FloatValueFactory(PropertySet pset) {
super(pset);
}
@Override
public Float createFromBigInteger(BigInteger i) {
if (this.jdbcCompliantTruncationForReads && (new BigDecimal(i).compareTo(Constants.BIG_DECIMAL_MAX_NEGATIVE_FLOAT_VALUE) < 0
|| new BigDecimal(i).compareTo(Constants.BIG_DECIMAL_MAX_FLOAT_VALUE) > 0)) {
throw new NumberOutOfRange(Messages.getString("ResultSet.NumberOutOfRange", new Object[] { i, getTargetTypeName() }));
}
return (float) i.doubleValue();
}
@Override
public Float createFromLong(long l) {
if (this.jdbcCompliantTruncationForReads && (l < -Float.MAX_VALUE || l > Float.MAX_VALUE)) {
throw new NumberOutOfRange(Messages.getString("ResultSet.NumberOutOfRange", new Object[] { l, getTargetTypeName() }));
}
return (float) l;
}
@Override
public Float createFromBigDecimal(BigDecimal d) {
if (this.jdbcCompliantTruncationForReads
&& (d.compareTo(Constants.BIG_DECIMAL_MAX_NEGATIVE_FLOAT_VALUE) < 0 || d.compareTo(Constants.BIG_DECIMAL_MAX_FLOAT_VALUE) > 0)) {
throw new NumberOutOfRange(Messages.getString("ResultSet.NumberOutOfRange", new Object[] { d, getTargetTypeName() }));
}
return (float) d.doubleValue();
}
@Override
public Float createFromDouble(double d) {
if (this.jdbcCompliantTruncationForReads && (d < -Float.MAX_VALUE || d > Float.MAX_VALUE)) {
throw new NumberOutOfRange(Messages.getString("ResultSet.NumberOutOfRange", new Object[] { d, getTargetTypeName() }));
}
return (float) d;
}
@Override
public Float createFromBit(byte[] bytes, int offset, int length) {
return new BigInteger(ByteBuffer.allocate(length + 1).put((byte) 0).put(bytes, offset, length).array()).floatValue();
}
public String getTargetTypeName() {
return Float.class.getName();
}
}