com.drew.metadata

Class Tag

java.lang.Object

com.drew.metadata.Tag

public class Tag
extends java.lang.Object

Models a particular tag within a Directory and provides methods for obtaining its value. Immutable.

Field Summary

Fields

Modifier and Type	Field and Description
private Directory	_directory
private int	_tagType

Constructor Summary

Constructors

Constructor and Description
Tag(int tagType, Directory directory)

Method Summary

Modifier and Type	Method and Description
java.lang.String	getDescription() Get a description of the tag's value, considering enumerated values and units.
java.lang.String	getDirectoryName() Get the name of the Directory in which the tag exists, such as Exif, GPS or Interoperability.
java.lang.String	getTagName() Get the name of the tag, such as Aperture, or InteropVersion.
int	getTagType() Gets the tag type as an int
java.lang.String	getTagTypeHex() Gets the tag type in hex notation as a String with padded leading zeroes if necessary (i.e.
boolean	hasTagName() Get whether this tag has a name.
java.lang.String	toString() A basic representation of the tag's type and value.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

_tagType

private final int _tagType

_directory

private final Directory _directory

Constructor Detail

Tag

public Tag(int tagType,
           Directory directory)

Method Detail

getTagType

public int getTagType()

Gets the tag type as an int

Returns:

the tag type as an int

getTagTypeHex

public java.lang.String getTagTypeHex()

Gets the tag type in hex notation as a String with padded leading zeroes if necessary (i.e. 0x100e).

Returns:

the tag type as a string in hexadecimal notation

getDescription

public java.lang.String getDescription()

Get a description of the tag's value, considering enumerated values and units.

Returns:

a description of the tag's value

hasTagName

public boolean hasTagName()

Get whether this tag has a name. If true, it may be accessed via getTagName(). If false, getTagName() will return a string resembling "Unknown tag (0x1234)".

Returns:

whether this tag has a name

getTagName

public java.lang.String getTagName()

Get the name of the tag, such as Aperture, or InteropVersion.

Returns:

the tag's name

getDirectoryName

public java.lang.String getDirectoryName()

Get the name of the Directory in which the tag exists, such as Exif, GPS or Interoperability.

Returns:

name of the Directory in which this tag exists

toString

public java.lang.String toString()

A basic representation of the tag's type and value. EG: [Exif IFD0] FNumber - f/2.8.

Overrides:

toString in class java.lang.Object

Returns:

the tag's type and value