java.lang.Object
- org.apache.poi.hpsf.ClassID

```
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.
The ClassID (or CLSID) is a UUID - see RFC 4122

Field Summary

Fields
Modifier and Type	Field	Description
`static ClassID`	`EQUATION30`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`EXCEL_V3`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`EXCEL_V3_CHART`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`EXCEL_V3_MACRO`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`EXCEL2003`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`EXCEL2007`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`EXCEL2007_MACRO`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`EXCEL2007_XLSB`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`EXCEL2010`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`EXCEL2010_CHART`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`EXCEL2010_ODS`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`EXCEL95`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`EXCEL95_CHART`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`EXCEL97`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`EXCEL97_CHART`	Deprecated. use enum `ClassIDPredefined`
`static int`	`LENGTH`	The number of bytes occupied by this object in the byte stream.
`static ClassID`	`OLE10_PACKAGE`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`POWERPOINT2007`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`POWERPOINT2007_MACRO`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`POWERPOINT95`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`POWERPOINT97`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`PPT_SHOW`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`TXT_ONLY`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`WORD2007`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`WORD2007_MACRO`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`WORD95`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`WORD97`	Deprecated. use enum `ClassIDPredefined`
`static ClassID`	`XLS_WORKBOOK`	Deprecated. use enum `ClassIDPredefined`

Constructor Summary

Constructors
Constructor	Description
`ClassID()`	Creates a `ClassID` and initializes its value with 0x00 bytes.
`ClassID(byte[] src, int offset)`	Creates a `ClassID` and reads its value from a byte array.
`ClassID(String externalForm)`	Creates a `ClassID` from a human-readable representation of the Class ID in standard format `"{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}"`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object o)`	Checks whether this `ClassID` is equal to another object.
`boolean`	`equalsInverted(ClassID o)`	Checks whether this `ClassID` is equal to another ClassID with inverted endianess, because there are apparently not only version 1 GUIDs (aka "network" with big-endian encoding), but also version 2 GUIDs (aka "native" with little-endian encoding) out there.
`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.

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - OLE10_PACKAGE
```
@Deprecated
public static final ClassID OLE10_PACKAGE
```
    Deprecated.
    use enum ClassIDPredefined
  - PPT_SHOW
```
@Deprecated
public static final ClassID PPT_SHOW
```
    Deprecated.
    use enum ClassIDPredefined
  - XLS_WORKBOOK
```
@Deprecated
public static final ClassID XLS_WORKBOOK
```
    Deprecated.
    use enum ClassIDPredefined
  - TXT_ONLY
```
@Deprecated
public static final ClassID TXT_ONLY
```
    Deprecated.
    use enum ClassIDPredefined
  - EXCEL_V3
```
@Deprecated
public static final ClassID EXCEL_V3
```
    Deprecated.
    use enum ClassIDPredefined
  - EXCEL_V3_CHART
```
@Deprecated
public static final ClassID EXCEL_V3_CHART
```
    Deprecated.
    use enum ClassIDPredefined
  - EXCEL_V3_MACRO
```
@Deprecated
public static final ClassID EXCEL_V3_MACRO
```
    Deprecated.
    use enum ClassIDPredefined
  - EXCEL95
```
@Deprecated
public static final ClassID EXCEL95
```
    Deprecated.
    use enum ClassIDPredefined
  - EXCEL95_CHART
```
@Deprecated
public static final ClassID EXCEL95_CHART
```
    Deprecated.
    use enum ClassIDPredefined
  - EXCEL97
```
@Deprecated
public static final ClassID EXCEL97
```
    Deprecated.
    use enum ClassIDPredefined
  - EXCEL97_CHART
```
@Deprecated
public static final ClassID EXCEL97_CHART
```
    Deprecated.
    use enum ClassIDPredefined
  - EXCEL2003
```
@Deprecated
public static final ClassID EXCEL2003
```
    Deprecated.
    use enum ClassIDPredefined
  - EXCEL2007
```
@Deprecated
public static final ClassID EXCEL2007
```
    Deprecated.
    use enum ClassIDPredefined
  - EXCEL2007_MACRO
```
@Deprecated
public static final ClassID EXCEL2007_MACRO
```
    Deprecated.
    use enum ClassIDPredefined
  - EXCEL2007_XLSB
```
@Deprecated
public static final ClassID EXCEL2007_XLSB
```
    Deprecated.
    use enum ClassIDPredefined
  - EXCEL2010
```
@Deprecated
public static final ClassID EXCEL2010
```
    Deprecated.
    use enum ClassIDPredefined
  - EXCEL2010_CHART
```
@Deprecated
public static final ClassID EXCEL2010_CHART
```
    Deprecated.
    use enum ClassIDPredefined
  - EXCEL2010_ODS
```
@Deprecated
public static final ClassID EXCEL2010_ODS
```
    Deprecated.
    use enum ClassIDPredefined
  - WORD95
```
@Deprecated
public static final ClassID WORD95
```
    Deprecated.
    use enum ClassIDPredefined
  - WORD97
```
@Deprecated
public static final ClassID WORD97
```
    Deprecated.
    use enum ClassIDPredefined
  - WORD2007
```
@Deprecated
public static final ClassID WORD2007
```
    Deprecated.
    use enum ClassIDPredefined
  - WORD2007_MACRO
```
@Deprecated
public static final ClassID WORD2007_MACRO
```
    Deprecated.
    use enum ClassIDPredefined
  - POWERPOINT97
```
@Deprecated
public static final ClassID POWERPOINT97
```
    Deprecated.
    use enum ClassIDPredefined
  - POWERPOINT95
```
@Deprecated
public static final ClassID POWERPOINT95
```
    Deprecated.
    use enum ClassIDPredefined
  - POWERPOINT2007
```
@Deprecated
public static final ClassID POWERPOINT2007
```
    Deprecated.
    use enum ClassIDPredefined
  - POWERPOINT2007_MACRO
```
@Deprecated
public static final ClassID POWERPOINT2007_MACRO
```
    Deprecated.
    use enum ClassIDPredefined
  - EQUATION30
```
@Deprecated
public static final ClassID EQUATION30
```
    Deprecated.
    use enum ClassIDPredefined
  - LENGTH
```
public static final int LENGTH
```
    The number of bytes occupied by this object in the byte stream.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - 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.
  - ClassID
```
public ClassID()
```
    Creates a ClassID and initializes its value with 0x00 bytes.
  - ClassID
```
public ClassID(String externalForm)
```
    Creates a ClassID from a human-readable representation of the Class ID in standard format "{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}".
    
    Parameters:
    
    externalForm - representation of the Class ID represented by this object.
- Method Detail
  - length
```
public int length()
```
    Returns:
    
    The number of bytes occupied by this object in the byte stream.
  - 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.
  - 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.
  - 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 from
    
    offset - The offset within the src byte array
    
    Returns:
    
    A byte array containing the class ID.
  - 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.
  - equals
```
public boolean equals(Object o)
```
    Checks whether this ClassID is equal to another object.
    
    Overrides:
    
    equals in class Object
    
    Parameters:
    
    o - the object to compare this ClassID with
    
    Returns:
    
    true if the objects are equal, else false.
  - equalsInverted
```
public boolean equalsInverted(ClassID o)
```
    Checks whether this ClassID is equal to another ClassID with inverted endianess, because there are apparently not only version 1 GUIDs (aka "network" with big-endian encoding), but also version 2 GUIDs (aka "native" with little-endian encoding) out there.
    
    Parameters:
    
    o - the object to compare this ClassID with
    
    Returns:
    
    true if the objects are equal, else false.
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
    
    See Also:
    
    Object.hashCode()
  - toString
```
public String toString()
```
    Returns a human-readable representation of the Class ID in standard format "{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}".
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    String representation of the Class ID represented by this object.

Class ClassID

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

OLE10_PACKAGE

PPT_SHOW

XLS_WORKBOOK

TXT_ONLY

EXCEL_V3

EXCEL_V3_CHART

EXCEL_V3_MACRO

EXCEL95

EXCEL95_CHART

EXCEL97

EXCEL97_CHART

EXCEL2003

EXCEL2007

EXCEL2007_MACRO

EXCEL2007_XLSB

EXCEL2010

EXCEL2010_CHART

EXCEL2010_ODS

WORD95

WORD97

WORD2007

WORD2007_MACRO

POWERPOINT97

POWERPOINT95

POWERPOINT2007

POWERPOINT2007_MACRO

EQUATION30

LENGTH

Constructor Detail

ClassID

ClassID

ClassID

Method Detail

length

getBytes

setBytes

read

write

equals

equalsInverted

hashCode

toString