Metadata (Aspose.Pdf for Android via Java (18.6) API Documentation)

java.lang.Object
- com.aspose.pdf.Metadata

All Implemented Interfaces:

com.aspose.ms.System.Collections.ICollection, com.aspose.ms.System.Collections.IDictionary, com.aspose.ms.System.Collections.IEnumerable, Iterable
```
public final class Metadata
extends Object
implements com.aspose.ms.System.Collections.IDictionary
```
Provides access to XMP metadata stream.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`add(String prefix, XmpPdfAExtensionObject value)` Adds pdf extension to metadata.
`void`	`addItem(Object key, Object value)` Adds value to metadata.
`void`	`clear()` Clears metadata.
`boolean`	`contains(Object key)` Checks does key is contained in metadata.
`void`	`copyTo(com.aspose.ms.System.Array array, int index)` Copies elements of the collection into array.
`Object`	`get_Item(Object key)` Gets data from metadata.
`com.aspose.ms.System.Collections.IDictionary`	`getExtensionFields()` Gets the dictionary of extension fields.
`com.aspose.ms.System.Collections.ICollection`	`getKeys()` Gets collection of metadata keys.
`String`	`getNamespaceUriByPrefix(String prefix)` Returns namespace URI by prefix.
`String`	`getPrefixByNamespaceUri(String namespaceUri)` Returns prefix by namespace URI.
`Object`	`getSyncRoot()` Gets collection synchronization object.
`com.aspose.ms.System.Collections.ICollection`	`getValues()` Gets values in the metadata.
`boolean`	`isFixedSize()` Checks if colleciton has fixed size.
`boolean`	`isReadOnly()` Checks if collection is read-only.
`boolean`	`isSynchronized()` Checks if collection is synchronized.
`com.aspose.ms.System.Collections.IDictionaryEnumerator`	`iterator()` Returns dictionary enumerator.
`com.aspose.ms.System.Collections.IEnumerator`	`iteratorIE()` Gets enumerator of the collection.
`void`	`registerNamespaceUri(String prefix, String namespaceUri)` Registers namespace URI.
`void`	`registerNamespaceUri(String prefix, String namespaceUri, String schemaDescription)` Registers namespace URI.
`void`	`removeItem(Object key)` Removes entry from metadata.
`void`	`set_Item(Object key, Object value)` Sets data from metadata.
`int`	`size()` Gets count of elements in the collection.

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

- Method Detail
  - registerNamespaceUri
```
public void registerNamespaceUri(String prefix,
                        String namespaceUri)
```
    Registers namespace URI.
    
    Parameters:
    prefix - Prefix.
    namespaceUri - Namespace URI.
  - registerNamespaceUri
```
public void registerNamespaceUri(String prefix,
                        String namespaceUri,
                        String schemaDescription)
```
    Registers namespace URI.
    
    Parameters:
    prefix - Prefix.
    namespaceUri - Namespace URI.
  - getNamespaceUriByPrefix
```
public String getNamespaceUriByPrefix(String prefix)
```
    Returns namespace URI by prefix.
    
    Parameters:
    prefix - Prefix.
    
    Returns:
    Namespace URI.
  - getPrefixByNamespaceUri
```
public String getPrefixByNamespaceUri(String namespaceUri)
```
    Returns prefix by namespace URI.
    
    Parameters:
    namespaceUri - Namespace URI.
    
    Returns:
    Prefix.
  - addItem
```
public void addItem(Object key,
           Object value)
```
    Adds value to metadata.
    
    Specified by:
    
    addItem in interface com.aspose.ms.System.Collections.IDictionary
    
    Parameters:
    key - Key name.
    value - Value which will be added.
  - add
```
public void add(String prefix,
       XmpPdfAExtensionObject value)
```
    Adds pdf extension to metadata.
    
    Parameters:
    prefix - The prefix of extension.
    value - Value which will be added.
  - clear
```
public void clear()
```
    Clears metadata.
    
    Specified by:
    
    clear in interface com.aspose.ms.System.Collections.IDictionary
  - contains
```
public boolean contains(Object key)
```
    Checks does key is contained in metadata.
    
    Specified by:
    
    contains in interface com.aspose.ms.System.Collections.IDictionary
    
    Parameters:
    key - Key name.
    
    Returns:
    True if key is contained in the metadata.
  - iterator
```
public com.aspose.ms.System.Collections.IDictionaryEnumerator iterator()
```
    Returns dictionary enumerator.
    
    Specified by:
    
    iterator in interface com.aspose.ms.System.Collections.IDictionary
    
    Specified by:
    
    iterator in interface com.aspose.ms.System.Collections.IEnumerable
    
    Specified by:
    
    iterator in interface Iterable
    
    Returns:
    Enumerator.
  - isFixedSize
```
public boolean isFixedSize()
```
    Checks if colleciton has fixed size.
    
    Specified by:
    
    isFixedSize in interface com.aspose.ms.System.Collections.IDictionary
  - isReadOnly
```
public boolean isReadOnly()
```
    Checks if collection is read-only.
    
    Specified by:
    
    isReadOnly in interface com.aspose.ms.System.Collections.IDictionary
  - getKeys
```
public com.aspose.ms.System.Collections.ICollection getKeys()
```
    Gets collection of metadata keys.
    
    Specified by:
    
    getKeys in interface com.aspose.ms.System.Collections.IDictionary
  - removeItem
```
public void removeItem(Object key)
```
    Removes entry from metadata.
    
    Specified by:
    
    removeItem in interface com.aspose.ms.System.Collections.IDictionary
    
    Parameters:
    key -
  - getValues
```
public com.aspose.ms.System.Collections.ICollection getValues()
```
    Gets values in the metadata.
    
    Specified by:
    
    getValues in interface com.aspose.ms.System.Collections.IDictionary
  - getExtensionFields
```
public com.aspose.ms.System.Collections.IDictionary getExtensionFields()
```
    Gets the dictionary of extension fields.
  - get_Item
```
public Object get_Item(Object key)
```
    Gets data from metadata.
    
    Specified by:
    
    get_Item in interface com.aspose.ms.System.Collections.IDictionary
    
    Parameters:
    key - Key name.
    
    Returns:
    Metadata object.
  - set_Item
```
public void set_Item(Object key,
            Object value)
```
    Sets data from metadata.
    
    Specified by:
    
    set_Item in interface com.aspose.ms.System.Collections.IDictionary
    
    Parameters:
    key - Key name.
  - size
```
public int size()
```
    Gets count of elements in the collection.
    
    Specified by:
    
    size in interface com.aspose.ms.System.Collections.ICollection
  - isSynchronized
```
public boolean isSynchronized()
```
    Checks if collection is synchronized.
    
    Specified by:
    
    isSynchronized in interface com.aspose.ms.System.Collections.ICollection
  - getSyncRoot
```
public Object getSyncRoot()
```
    Gets collection synchronization object.
    
    Specified by:
    
    getSyncRoot in interface com.aspose.ms.System.Collections.ICollection
  - iteratorIE
```
public com.aspose.ms.System.Collections.IEnumerator iteratorIE()
```
    Gets enumerator of the collection.
    
    Returns:
  - copyTo
```
public void copyTo(com.aspose.ms.System.Array array,
          int index)
```
    Copies elements of the collection into array.
    
    Specified by:
    
    copyTo in interface com.aspose.ms.System.Collections.ICollection
    
    Parameters:
    array - Destination array.
    index - Starting index.

Class Metadata

Method Summary

Methods inherited from class java.lang.Object

Method Detail

registerNamespaceUri

registerNamespaceUri

getNamespaceUriByPrefix

getPrefixByNamespaceUri

addItem

add

clear

contains

iterator

isFixedSize

isReadOnly

getKeys

removeItem

getValues

getExtensionFields

get_Item

set_Item

size

isSynchronized

getSyncRoot

iteratorIE

copyTo