org.gcube.opensearch.opensearchlibrary.urlelements
Class ExtendedURLElement

java.lang.Object
  org.gcube.opensearch.opensearchlibrary.urlelements.ExtendedURLElement

All Implemented Interfaces:

URLElement

public class ExtendedURLElement
extends Object
implements URLElement

URL element class implementing the URLElement interface, which provides support for extended rel values

Author:

gerasimos.farantatos

Constructor Summary

ExtendedURLElement(URLElement el, Element url, Map<String,String> nsPrefixes)
Creates a new ExtendedURLElement

Method Summary

int	getIndexOffset() Returns the value of the indexOffset OpenSearch parameter contained in this URL element.
String	getMimeType() Retrieves the MIME type associated with the results obtained after issuing a query using the template contained in this URL element
int	getPageOffset() Returns the value of the pageOffset OpenSearch parameter contained in this URL element.
QueryBuilder	getQueryBuilder() Constructs and returns a QueryBuilder object that can be used to construct queries based on the template contained in this query element.
String	getRel() Returns the role of the resource being described in relation to the description document
boolean	isRelSupported() Answers whether the rel value of the URL element can be interpreted by this URL element type
void	parse() Processes a URL element

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtendedURLElement

public ExtendedURLElement(URLElement el,
                          Element url,
                          Map<String,String> nsPrefixes)

Creates a new ExtendedURLElement

Parameters:

el - The URLElement that will be next in the chain of responsibility

url - An Element instance containing the URL element to be processed

nsPrefixes - The mapping from namespace URIs to namespace prefixes for all namespaces contained in a description document

Method Detail

parse

public void parse()
           throws Exception

Processes a URL element

Specified by:

parse in interface URLElement

Throws:

Exception - If the URL element is not valid according to the OpenSearch specification or in case of other error

See Also:

URLElement.parse()

isRelSupported

public boolean isRelSupported()

Answers whether the rel value of the URL element can be interpreted by this URL element type

Specified by:

isRelSupported in interface URLElement

Returns:

true if the rel value is supported, false otherwise

See Also:

URLElement.isRelSupported()

getMimeType

public String getMimeType()
                   throws Exception

Retrieves the MIME type associated with the results obtained after issuing a query using the template contained in this URL element

Specified by:

getMimeType in interface URLElement

Returns:

The requested MIME type

Throws:

Exception - If the URL element is not initialized or in case of other error

See Also:

URLElement.getMimeType()

getPageOffset

public int getPageOffset()
                  throws Exception

Returns the value of the pageOffset OpenSearch parameter contained in this URL element. The pageOffset defines the page number of the first set of search results

Specified by:

getPageOffset in interface URLElement

Returns:

The value of the pageOffset parameter contained in the URL element

Throws:

Exception - If the URL element is not initialized or in case of other error

See Also:

URLElement.getPageOffset()

getIndexOffset

public int getIndexOffset()
                   throws Exception

Returns the value of the indexOffset OpenSearch parameter contained in this URL element. The indexOffset defines the index number of the first search result

Specified by:

getIndexOffset in interface URLElement

Returns:

The value of the indexOffset parameter contained in the URL element

Throws:

Exception - If the URL element is not initialized or in case of other error

See Also:

org.gcube.opensearch.opensearchlibrary.urlelements.URLElement#getIndexOffset())

getRel

public String getRel()
              throws Exception

Returns the role of the resource being described in relation to the description document

Specified by:

getRel in interface URLElement

Returns:

The rel value of the URL element

Throws:

Exception - If the URL element is not initialized or in case of other error

See Also:

URLElement.getRel()

getQueryBuilder

public QueryBuilder getQueryBuilder()
                             throws Exception

Constructs and returns a QueryBuilder object that can be used to construct queries based on the template contained in this query element. The exact type of QueryBuilder returned depends on the type of the present URLElement instance

Specified by:

getQueryBuilder in interface URLElement

Returns:

A query builder that can be used to construct search queries

Throws:

Exception - In case of other error during QueryBuilder construction

See Also:

URLElement.getQueryBuilder()