Package org.apache.derby.impl.drda
Class SignedBinary
java.lang.Object
org.apache.derby.impl.drda.SignedBinary
Converters from signed binary bytes to Java
short
, int
, or long
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final int
AS/400, Unix, System/390 byte-order for signed binary representations.static final int
Intel 80/86 reversed byte-order for signed binary representations. -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic int
bigEndianBytesToInt
(byte[] buffer, int offset) Build a Java int from a 4-byte big endian signed binary representation.static long
bigEndianBytesToLong
(byte[] buffer, int offset) Build a Java long from an 8-byte big endian signed binary representation.static short
bigEndianBytesToShort
(byte[] buffer, int offset) Build a Java short from a 2-byte big endian signed binary representation.static int
getInt
(byte[] buffer, int offset, int byteOrder) Build a Java int from a 4-byte signed binary representation.static long
getLong
(byte[] buffer, int offset, int byteOrder) Build a Java long from an 8-byte signed binary representation.static short
getShort
(byte[] buffer, int offset, int byteOrder) Build a Java short from a 2-byte signed binary representation.static int
littleEndianBytesToInt
(byte[] buffer, int offset) Build a Java int from a 4-byte little endian signed binary representation.static long
littleEndianBytesToLong
(byte[] buffer, int offset) Build a Java long from an 8-byte little endian signed binary representation.static short
littleEndianBytesToShort
(byte[] buffer, int offset) Build a Java short from a 2-byte little endian signed binary representation.
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Field Details
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BIG_ENDIAN
public static final int BIG_ENDIANAS/400, Unix, System/390 byte-order for signed binary representations.- See Also:
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LITTLE_ENDIAN
public static final int LITTLE_ENDIANIntel 80/86 reversed byte-order for signed binary representations.- See Also:
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Constructor Details
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SignedBinary
private SignedBinary()
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Method Details
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getShort
public static short getShort(byte[] buffer, int offset, int byteOrder) Build a Java short from a 2-byte signed binary representation.Depending on machine type, byte orders are
BIG_ENDIAN
for signed binary integers, andLITTLE_ENDIAN
for pc8087 signed binary integers.- Throws:
IllegalArgumentException
- if the specified byte order is not recognized.
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getInt
public static int getInt(byte[] buffer, int offset, int byteOrder) Build a Java int from a 4-byte signed binary representation.Depending on machine type, byte orders are
BIG_ENDIAN
for signed binary integers, andLITTLE_ENDIAN
for pc8087 signed binary integers.- Throws:
IllegalArgumentException
- if the specified byte order is not recognized.
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getLong
public static long getLong(byte[] buffer, int offset, int byteOrder) Build a Java long from an 8-byte signed binary representation.Depending on machine type, byte orders are
BIG_ENDIAN
for signed binary integers, andLITTLE_ENDIAN
for pc8087 signed binary integers.- Throws:
IllegalArgumentException
- if the specified byte order is not recognized.
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bigEndianBytesToShort
public static short bigEndianBytesToShort(byte[] buffer, int offset) Build a Java short from a 2-byte big endian signed binary representation. -
littleEndianBytesToShort
public static short littleEndianBytesToShort(byte[] buffer, int offset) Build a Java short from a 2-byte little endian signed binary representation. -
bigEndianBytesToInt
public static int bigEndianBytesToInt(byte[] buffer, int offset) Build a Java int from a 4-byte big endian signed binary representation. -
littleEndianBytesToInt
public static int littleEndianBytesToInt(byte[] buffer, int offset) Build a Java int from a 4-byte little endian signed binary representation. -
bigEndianBytesToLong
public static long bigEndianBytesToLong(byte[] buffer, int offset) Build a Java long from an 8-byte big endian signed binary representation. -
littleEndianBytesToLong
public static long littleEndianBytesToLong(byte[] buffer, int offset) Build a Java long from an 8-byte little endian signed binary representation.
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