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org.apache.derby.client.am

public Class FloatingPoint

extends Object
Class Inheritance
Converters from floating point bytes to Java float, double, or java.math.BigDecimal.

Field Summary

Modifier and TypeField and Description
public static final int
IEEE_754_FLOATING_POINT

Supported Unix Big Endian IEEE 754 floating point representation.

Constructor Summary

AccessConstructor and Description
private
FloatingPoint()

Method Summary

Modifier and TypeMethod and Description
private static final int
convertFromByteToInt(byte[] buffer, int offset)

Convert the byte array to an int.

private static final long
convertFromByteToLong(byte[] buffer, int offset)

Convert the byte array to a long.

pack-priv static double
getDouble(byte[] buffer, int offset)

Build a Java double from an 8-byte floating point representation.

pack-priv static float
getFloat(byte[] buffer, int offset)

Build a Java float from a 4-byte floating point representation.

Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAlltoStringwaitwaitwait

Field Detail

IEEE_754_FLOATING_POINTback to summary
public static final int IEEE_754_FLOATING_POINT

Supported Unix Big Endian IEEE 754 floating point representation.

Constructor Detail

FloatingPointback to summary
private FloatingPoint()

Method Detail

convertFromByteToIntback to summary
private static final int convertFromByteToInt(byte[] buffer, int offset)

Convert the byte array to an int.

convertFromByteToLongback to summary
private static final long convertFromByteToLong(byte[] buffer, int offset)

Convert the byte array to a long.

getDoubleback to summary
pack-priv static double getDouble(byte[] buffer, int offset)

Build a Java double from an 8-byte floating point representation.

This includes DERBY types:

  • FLOAT
  • DOUBLE [PRECISION]
Exceptions
IllegalArgumentException:
if the specified representation is not recognized.
getFloatback to summary
pack-priv static float getFloat(byte[] buffer, int offset)

Build a Java float from a 4-byte floating point representation.

This includes DERBY types:

  • REAL
  • FLOAT(1<=n<=24)
Exceptions
IllegalArgumentException:
if the specified representation is not recognized.