com.epimorphics.lda.query

Class ContextQueryUpdater

java.lang.Object

com.epimorphics.lda.query.ContextQueryUpdater

All Implemented Interfaces:

ViewSetter

public class ContextQueryUpdater
extends Object
implements ViewSetter

A ContextQueryUpdater is used to update an APIQuery according to context parameters, including geospatial ones, and to deliver the view specified by the context.

Author:

chris

Field Summary

Fields

Modifier and Type	Field and Description
protected APIQuery	aq
protected int	endpointKind
static int	ItemEndpoint
static int	ListEndpoint
protected String	requestedFormat

Constructor Summary

Constructors

Constructor and Description
ContextQueryUpdater(int endpointKind, Bindings context, NamedViews nv, ShortnameService sns, APIQuery args) Initialise this ContextQueryUpdater.

Method Summary

Methods

Modifier and Type	Method and Description
void	addFilterFromQuery(Param param, String raw_val) General interface for extending the query with a specified parameter.
void	handleReservedParameters(GEOLocation geo, ViewSetter vs, String p, String val) handle the reserved, ie, _wossname, parameters.
void	setFormat(String format)
void	setViewByName(String viewName)
void	setViewByProperties(String val)
void	setViewByTemplate(String template)
View	updateQueryAndConstructView(List<PendingParameterValue> deferredFilters) Apply the context updates to the query, and answer the view specified.

Methods inherited from class java.lang.Object

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

Field Detail

aq

protected final APIQuery aq

endpointKind

protected final int endpointKind

requestedFormat

protected String requestedFormat

ItemEndpoint

public static final int ItemEndpoint

See Also:

Constant Field Values

ListEndpoint

public static final int ListEndpoint

See Also:

Constant Field Values

Constructor Detail

ContextQueryUpdater

public ContextQueryUpdater(int endpointKind,
                   Bindings context,
                   NamedViews nv,
                   ShortnameService sns,
                   APIQuery args)

Initialise this ContextQueryUpdater.

Parameters:

endpointKind -

context - the context providing the parameters and their values

nv - a mapping from names to views, with a default

sns - the ShortnameService to use to translate to URIs

args - place to build the query arguments

Method Detail

updateQueryAndConstructView

public View updateQueryAndConstructView(List<PendingParameterValue> deferredFilters)

Apply the context updates to the query, and answer the view specified.

handleReservedParameters

public void handleReservedParameters(GEOLocation geo,
                            ViewSetter vs,
                            String p,
                            String val)

handle the reserved, ie, _wossname, parameters. These may update the given geo, the vs, or this query object. p is the reserved-property name, val is the value string.

addFilterFromQuery

public void addFilterFromQuery(Param param,
                      String raw_val)

General interface for extending the query with a specified parameter. This parameter types handled include _page, _orderBy, min-, name- and path parameters.

Parameters:

param -

raw_val -

setFormat

public void setFormat(String format)

Specified by:

setFormat in interface ViewSetter

setViewByTemplate

public void setViewByTemplate(String template)

setViewByName

public void setViewByName(String viewName)

Specified by:

setViewByName in interface ViewSetter

setViewByProperties

public void setViewByProperties(String val)

Specified by:

setViewByProperties in interface ViewSetter