Asn1Tag

java.lang.Object
- com.objsys.asn1j.runtime.Asn1Tag

All Implemented Interfaces:

java.io.Serializable
```
public class Asn1Tag
extends java.lang.Object
implements java.io.Serializable
```
This is a container class for holding the components of an ASN.1 tag value.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`static short`	`APPL` Mask value for an APPLICATION tag
`static short`	`Bit8Mask` Bit 8 (MSB) octet mask value
`static short`	`ClassMask` Mask value to mask the class bits from a tag
`static short`	`CONS` Mask value for CONSTRUCTED form
`static short`	`CTXT` Mask value for a context-specific tag
`static Asn1Tag`	`ENUM` ASN.1 ENUMERATED type tag value
`static Asn1Tag`	`EOC` ASN.1 end-of-contents (EOC) type tag value
`static boolean`	`EXPL` This specifies that explicit tagging should be used.
`static short`	`EXTIDCODE` Mask value for extended tag identifier indicator
`static short`	`FormMask` Mask value to mask the form bit from a tag
`static short`	`IDMask` Mask value to mask the tag ID bits from a tag
`static boolean`	`IMPL` This specifies that implicit tagging should be used.
`static short`	`L7BitsMask` Lower 7 bits octet mask value
`short`	`mClass` Tag class value (UNIV, APPL, CTXT, or PRIV)
`short`	`mForm` Tag form value (PRIM or CONS)
`int`	`mIDCode` Tag ID code
`static short`	`PRIM` Mask value for PRIMITIVE form
`static short`	`PRIV` Mask value for a PRIVATE tag
`static Asn1Tag`	`SEQUENCE` ASN.1 SEQUENCE type tag value
`static Asn1Tag`	`SET` ASN.1 SET type tag value
`static short`	`UNIV` Mask value for a UNIVERSAL tag

Constructor Summary

Constructors
Constructor and Description
`Asn1Tag()` The default constructor initializes all fields to zero.
`Asn1Tag(Asn1Tag _tag)` The copy constructor initializes all fields to those from the given tag parameter.
`Asn1Tag(short class_, short form, int idCode)` This constructor initializes all fields to the given values

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`int`	`compareTo(Asn1Tag o)` Compare this tag with the given tag.
`boolean`	`equals(java.lang.Object _tag)` This method compares this tag with the given tag value for equality.
`boolean`	`equals(short class_, short form, int idCode)` This method compares this tag with the given tag value for equality.
`boolean`	`isConstructed()` This method tests if the tag is constructed.
`boolean`	`isEOC()` This method tests if the tag is an end-of-contents (EOC) tag.
`void`	`setEqualTo(Asn1Tag o)` Assign this tag to match the given tag.
`java.lang.String`	`toString()` This method will return a formatted string representing the tag value.

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

- Field Detail
  - EXPL
```
public static final boolean EXPL
```
    This specifies that explicit tagging should be used.
    
    See Also:
    
    Constant Field Values
  - IMPL
```
public static final boolean IMPL
```
    This specifies that implicit tagging should be used.
    
    See Also:
    
    Constant Field Values
  - UNIV
```
public static final short UNIV
```
    Mask value for a UNIVERSAL tag
    
    See Also:
    
    Constant Field Values
  - APPL
```
public static final short APPL
```
    Mask value for an APPLICATION tag
    
    See Also:
    
    Constant Field Values
  - CTXT
```
public static final short CTXT
```
    Mask value for a context-specific tag
    
    See Also:
    
    Constant Field Values
  - PRIV
```
public static final short PRIV
```
    Mask value for a PRIVATE tag
    
    See Also:
    
    Constant Field Values
  - ClassMask
```
public static final short ClassMask
```
    Mask value to mask the class bits from a tag
    
    See Also:
    
    Constant Field Values
  - PRIM
```
public static final short PRIM
```
    Mask value for PRIMITIVE form
    
    See Also:
    
    Constant Field Values
  - CONS
```
public static final short CONS
```
    Mask value for CONSTRUCTED form
    
    See Also:
    
    Constant Field Values
  - FormMask
```
public static final short FormMask
```
    Mask value to mask the form bit from a tag
    
    See Also:
    
    Constant Field Values
  - EXTIDCODE
```
public static final short EXTIDCODE
```
    Mask value for extended tag identifier indicator
    
    See Also:
    
    Constant Field Values
  - IDMask
```
public static final short IDMask
```
    Mask value to mask the tag ID bits from a tag
    
    See Also:
    
    Constant Field Values
  - ENUM
```
public static final Asn1Tag ENUM
```
    ASN.1 ENUMERATED type tag value
  - EOC
```
public static final Asn1Tag EOC
```
    ASN.1 end-of-contents (EOC) type tag value
  - SEQUENCE
```
public static final Asn1Tag SEQUENCE
```
    ASN.1 SEQUENCE type tag value
  - SET
```
public static final Asn1Tag SET
```
    ASN.1 SET type tag value
  - Bit8Mask
```
public static final short Bit8Mask
```
    Bit 8 (MSB) octet mask value
    
    See Also:
    
    Constant Field Values
  - L7BitsMask
```
public static final short L7BitsMask
```
    Lower 7 bits octet mask value
    
    See Also:
    
    Constant Field Values
  - mClass
```
public transient short mClass
```
    Tag class value (UNIV, APPL, CTXT, or PRIV)
  - mForm
```
public transient short mForm
```
    Tag form value (PRIM or CONS)
  - mIDCode
```
public transient int mIDCode
```
    Tag ID code
- Constructor Detail
  - Asn1Tag
```
public Asn1Tag()
```
    The default constructor initializes all fields to zero.
  - Asn1Tag
```
public Asn1Tag(Asn1Tag _tag)
```
    The copy constructor initializes all fields to those from the given tag parameter.
    
    Parameters:
    
    _tag - The input tag value to copy.
  - Asn1Tag
```
public Asn1Tag(short class_,
               short form,
               int idCode)
```
    This constructor initializes all fields to the given values
    
    Parameters:
    
    class_ - Tag class value (UNIV, APPL, CTXT, or PRIV)
    
    form - Tag form value (PRIM or CONS)
    
    idCode - Tag identifier code
- Method Detail
  - compareTo
```
public int compareTo(Asn1Tag o)
```
    Compare this tag with the given tag. The comparison is by class then id, which is the canonical ordering specified in X.680 8.6
    
    Returns:
    
    < 0 if this tag is less than the given tag = 0 if the tags are equal (aside from form) > 0 if this tag is greater than the given tag
  - equals
```
public boolean equals(short class_,
                      short form,
                      int idCode)
```
    This method compares this tag with the given tag value for equality.
    
    Parameters:
    
    class_ - Tag class value (UNIV, APPL, CTXT, or PRIV)
    
    form - Tag form value (PRIM or CONS)
    
    idCode - Tag identifier code
    
    Returns:
    
    True if tags are equal
  - equals
```
public boolean equals(java.lang.Object _tag)
```
    This method compares this tag with the given tag value for equality.
    
    Overrides:
    
    equals in class java.lang.Object
    
    Parameters:
    
    _tag - Asn1Tag object to which this tag is to be compared
    
    Returns:
    
    True if tags are equal
  - isConstructed
```
public boolean isConstructed()
```
    This method tests if the tag is constructed.
    
    Returns:
    
    True if tag is constructed.
  - isEOC
```
public boolean isEOC()
```
    This method tests if the tag is an end-of-contents (EOC) tag.
    
    Returns:
    
    True if tag is an EOC.
  - setEqualTo
```
public final void setEqualTo(Asn1Tag o)
```
    Assign this tag to match the given tag.
    
    Parameters:
    
    o - The given tag.
  - toString
```
public java.lang.String toString()
```
    This method will return a formatted string representing the tag value. The form is "[<class> <ID>]" (i.e. the ASN.1 standard syntax for a tag value).
    
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    Formatted tag string

Class Asn1Tag

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

EXPL

IMPL

UNIV

APPL

CTXT

PRIV

ClassMask

PRIM

CONS

FormMask

EXTIDCODE

IDMask

ENUM

EOC

SEQUENCE

SET

Bit8Mask

L7BitsMask

mClass

mForm

mIDCode

Constructor Detail

Asn1Tag

Asn1Tag

Asn1Tag

Method Detail

compareTo

equals

equals

isConstructed

isEOC

setEqualTo

toString