org.apache.lenya.cms.publication
Class DublinCoreImpl

java.lang.Object
  org.apache.lenya.cms.publication.DublinCoreImpl

public class DublinCoreImpl
extends java.lang.Object

Access dublin core meta data in documents. This class uses the dublin core specification from 2003-03-04.

Field Summary

static java.lang.String[]	ELEMENTS
static java.lang.String[]	TERMS

Constructor Summary

protected

DublinCoreImpl(Document aDocument) Creates a new instance of Dublin Core

Method Summary

void	addValue(java.lang.String key, java.lang.String value)
void	addValues(java.lang.String key, java.lang.String[] values)
protected java.lang.String[]	getElementOrTerm(java.lang.String key) Returns the element or term values, resp., for a certain key.
java.lang.String	getFirstValue(java.lang.String key) Returns the first value for a certain key.
protected org.w3c.dom.Element	getMetaElement(org.w3c.dom.Document doc) Returns the Lenya meta data element.
java.lang.String[]	getValues(java.lang.String key)
protected void	loadValues() Loads the dublin core values from the XML file.
void	removeAllValues(java.lang.String key)
void	removeValue(java.lang.String key, java.lang.String value)
void	replaceBy(DublinCore other)
void	save() Save the meta data.
void	setValue(java.lang.String key, java.lang.String value)

Methods inherited from class java.lang.Object

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

Field Detail

ELEMENTS

public static final java.lang.String[] ELEMENTS

TERMS

public static final java.lang.String[] TERMS

Constructor Detail

DublinCoreImpl

protected DublinCoreImpl(Document aDocument)
                  throws DocumentException

Creates a new instance of Dublin Core

Parameters:

aDocument - the document for which the Dublin Core instance is created.

Throws:

DocumentException - if an error occurs

Method Detail

loadValues

protected void loadValues()
                   throws DocumentException

Loads the dublin core values from the XML file.

Throws:

DocumentException - when something went wrong.

save

public void save()
          throws DocumentException

Save the meta data.

Throws:

DocumentException - if the meta data could not be made persistent.

getMetaElement

protected org.w3c.dom.Element getMetaElement(org.w3c.dom.Document doc)
                                      throws DocumentException

Returns the Lenya meta data element.

Parameters:

doc - The XML document.

Returns:

A DOM element.

Throws:

DocumentException

getFirstValue

public java.lang.String getFirstValue(java.lang.String key)
                               throws DocumentException

Returns the first value for a certain key.

Parameters:

key - The key.

Returns:

A string.

Throws:

DocumentException

getElementOrTerm

protected java.lang.String[] getElementOrTerm(java.lang.String key)
                                       throws DocumentException

Returns the element or term values, resp., for a certain key.

Parameters:

key - The key.

Returns:

An array of strings.

Throws:

DocumentException

getValues

public java.lang.String[] getValues(java.lang.String key)
                             throws DocumentException

Throws:

DocumentException

See Also:

DublinCore.getValues(java.lang.String)

addValue

public void addValue(java.lang.String key,
                     java.lang.String value)
              throws DocumentException

Throws:

DocumentException

See Also:

DublinCore.addValue(java.lang.String, java.lang.String)

setValue

public void setValue(java.lang.String key,
                     java.lang.String value)
              throws DocumentException

Throws:

DocumentException

See Also:

DublinCore.setValue(java.lang.String, java.lang.String)

addValues

public void addValues(java.lang.String key,
                      java.lang.String[] values)
               throws DocumentException

Throws:

DocumentException

See Also:

DublinCore.addValues(java.lang.String, java.lang.String[])

removeValue

public void removeValue(java.lang.String key,
                        java.lang.String value)
                 throws DocumentException

Throws:

DocumentException

See Also:

DublinCore.removeValue(java.lang.String, java.lang.String)

removeAllValues

public void removeAllValues(java.lang.String key)
                     throws DocumentException

Throws:

DocumentException

See Also:

DublinCore.removeAllValues(java.lang.String)

replaceBy

public void replaceBy(DublinCore other)
               throws DocumentException

Throws:

DocumentException

See Also:

DublinCore.replaceBy(org.apache.lenya.cms.publication.DublinCore)