Class ClassID
- java.lang.Object
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- loci.poi.hpsf.ClassID
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public class ClassID extends Object
Represents a class ID (16 bytes). Unlike other little-endian type the
ClassID
is not just 16 bytes stored in the wrong order. Instead, it is a double word (4 bytes) followed by two words (2 bytes each) followed by 8 bytes.- Since:
- 2002-02-09
- Version:
- $Id: ClassID.java 489730 2006-12-22 19:18:16Z bayard $
- Author:
- Rainer Klute <klute@rainer-klute.de>
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
equals(Object o)
Checks whether thisClassID
is equal to another object.byte[]
getBytes()
Gets the bytes making out the class ID.int
hashCode()
int
length()
byte[]
read(byte[] src, int offset)
Reads the class ID's value from a byte array by turning little-endian into big-endian.void
setBytes(byte[] bytes)
Sets the bytes making out the class ID.String
toString()
Returns a human-readable representation of the Class ID in standard format"{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}"
.void
write(byte[] dst, int offset)
Writes the class ID to a byte array in the little-endian format.
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Field Detail
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bytes
protected byte[] bytes
The bytes making out the class ID in correct order, i.e. big-endian.
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LENGTH
public static final int LENGTH
The number of bytes occupied by this object in the byte stream.
- See Also:
- Constant Field Values
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Constructor Detail
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ClassID
public ClassID(byte[] src, int offset)
Creates a
ClassID
and reads its value from a byte array.- Parameters:
src
- The byte array to read from.offset
- The offset of the first byte to read.
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ClassID
public ClassID()
Creates a
ClassID
and initializes its value with 0x00 bytes.
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Method Detail
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length
public int length()
- Returns:
- The number of bytes occupied by this object in the byte stream.
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getBytes
public byte[] getBytes()
Gets the bytes making out the class ID. They are returned in correct order, i.e. big-endian.
- Returns:
- the bytes making out the class ID.
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setBytes
public void setBytes(byte[] bytes)
Sets the bytes making out the class ID.
- Parameters:
bytes
- The bytes making out the class ID in big-endian format. They are copied without their order being changed.
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read
public byte[] read(byte[] src, int offset)
Reads the class ID's value from a byte array by turning little-endian into big-endian.
- Parameters:
src
- The byte array to read fromoffset
- The offset within the src byte array- Returns:
- A byte array containing the class ID.
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write
public void write(byte[] dst, int offset) throws ArrayStoreException
Writes the class ID to a byte array in the little-endian format.
- Parameters:
dst
- The byte array to write to.offset
- The offset within the dst byte array.- Throws:
ArrayStoreException
- if there is not enough room for the class ID 16 bytes in the byte array after the offset position.
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equals
public boolean equals(Object o)
Checks whether this
ClassID
is equal to another object.
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hashCode
public int hashCode()
- Overrides:
hashCode
in classObject
- See Also:
Object.hashCode()
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