Package com.drew.metadata

Class Metadata

java.lang.Object
com.drew.metadata.Metadata
public final class Metadata extends Object
A top-level object that holds the metadata values extracted from an image.

Metadata objects may contain zero or more Directory objects. Each directory may contain zero or more tags with corresponding values.

Author:
Drew Noakes https://drewnoakes.com

  • Constructor Details

    • Metadata

      public Metadata()

  • Method Details

    • getDirectories

      public Iterable<Directory> getDirectories()
      Returns an iterable set of the Directory instances contained in this metadata collection.
      Returns:
      an iterable set of directories

    • getDirectoriesOfType

      public <T extends Directory> Collection<T> getDirectoriesOfType(Class<T> type)

    • getDirectoryCount

      public int getDirectoryCount()
      Returns the count of directories in this metadata collection.
      Returns:
      the number of unique directory types set for this metadata collection

    • addDirectory

      public <T extends Directory> void addDirectory(T directory)
      Adds a directory to this metadata collection.
      Parameters:
      directory - the Directory to add into this metadata collection.

    • getFirstDirectoryOfType

      public <T extends Directory> T getFirstDirectoryOfType(Class<T> type)
      Gets the first Directory of the specified type contained within this metadata collection. If no instances of this type are present, null is returned.
      Type Parameters:
      T - the Directory type
      Parameters:
      type - the Directory type
      Returns:
      the first Directory of type T in this metadata collection, or null if none exist

    • containsDirectoryOfType

      public boolean containsDirectoryOfType(Class<? extends Directory> type)
      Indicates whether an instance of the given directory type exists in this Metadata instance.
      Parameters:
      type - the Directory type
      Returns:
      true if a Directory of the specified type exists, otherwise false

    • hasErrors

      public boolean hasErrors()
      Indicates whether any errors were reported during the reading of metadata values. This value will be true if Directory.hasErrors() is true for one of the contained Directory objects.
      Returns:
      whether one of the contained directories has an error

    • toString

      public String toString()
      Overrides:
      toString in class Object