com.nutiteq.datasources.vector

Class CartoDbDataSource

java.lang.Object

com.nutiteq.vectordatasources.AbstractVectorDataSource<com.nutiteq.geometry.Geometry>

com.nutiteq.datasources.vector.CartoDbDataSource

All Implemented Interfaces:

com.nutiteq.vectordatasources.VectorDataSource<com.nutiteq.geometry.Geometry>

Direct Known Subclasses:

EditableCartoDbDataSource

public abstract class CartoDbDataSource
extends com.nutiteq.vectordatasources.AbstractVectorDataSource<com.nutiteq.geometry.Geometry>

Abstract data source for online CartoDB geometry. Instances need to define factory methods for creating style sets based on element metadata.

Author:

mark

Nested Class Summary

Nested classes/interfaces inherited from interface com.nutiteq.vectordatasources.VectorDataSource

com.nutiteq.vectordatasources.VectorDataSource.OnChangeListener

Field Summary

Fields

Modifier and Type	Field and Description
protected String	account
protected static CharSequence	PLACEHOLDER_BBOX
protected static CharSequence	PLACEHOLDER_ENVELOPE
protected String	sql
protected static String	TAG_CARTODB_ID
protected static String	TAG_GEOM
protected static String	TAG_GEOM_WEBMERCATOR
protected static String	TAG_ROWS

Fields inherited from class com.nutiteq.vectordatasources.AbstractVectorDataSource

projection

Constructor Summary

Constructors

Constructor and Description
CartoDbDataSource(com.nutiteq.projections.Projection projection, String account, String sql) Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract com.nutiteq.ui.Label	createLabel(Map<String,String> userData)
protected abstract com.nutiteq.style.StyleSet<com.nutiteq.style.LineStyle>	createLineStyleSet(Map<String,String> userData, int zoom)
protected abstract com.nutiteq.style.StyleSet<com.nutiteq.style.PointStyle>	createPointStyleSet(Map<String,String> userData, int zoom)
protected abstract com.nutiteq.style.StyleSet<com.nutiteq.style.PolygonStyle>	createPolygonStyleSet(Map<String,String> userData, int zoom)
com.nutiteq.components.Envelope	getDataExtent()
Collection<com.nutiteq.geometry.Geometry>	loadElements(com.nutiteq.components.CullState cullState)
void	setMaxElements(int maxElements) Limit maximum objects returned by each query.

Methods inherited from class com.nutiteq.vectordatasources.AbstractVectorDataSource

addOnChangeListener, getProjection, notifyElementChanged, notifyElementsChanged, onElementChanged, removeOnChangeListener

Methods inherited from class java.lang.Object

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

Field Detail

TAG_CARTODB_ID

protected static final String TAG_CARTODB_ID

See Also:

Constant Field Values

TAG_GEOM

protected static final String TAG_GEOM

See Also:

Constant Field Values

TAG_GEOM_WEBMERCATOR

protected static final String TAG_GEOM_WEBMERCATOR

See Also:

Constant Field Values

TAG_ROWS

protected static final String TAG_ROWS

See Also:

Constant Field Values

PLACEHOLDER_BBOX

protected static final CharSequence PLACEHOLDER_BBOX

PLACEHOLDER_ENVELOPE

protected static final CharSequence PLACEHOLDER_ENVELOPE

account

protected final String account

sql

protected final String sql

Constructor Detail

CartoDbDataSource

public CartoDbDataSource(com.nutiteq.projections.Projection projection,
                 String account,
                 String sql)

Default constructor.

Parameters:

projection - projection for the data source (almost always EPSG3857)

account - CartoDB account id

sql - SQL sentence for loading data. Should contain placeholders (!bbox!, !envelope!) and tags

Method Detail

setMaxElements

public void setMaxElements(int maxElements)

Limit maximum objects returned by each query.

Parameters:

maxElements - maximum objects

getDataExtent

public com.nutiteq.components.Envelope getDataExtent()

loadElements

public Collection<com.nutiteq.geometry.Geometry> loadElements(com.nutiteq.components.CullState cullState)

createLabel

protected abstract com.nutiteq.ui.Label createLabel(Map<String,String> userData)

createPointStyleSet

protected abstract com.nutiteq.style.StyleSet<com.nutiteq.style.PointStyle> createPointStyleSet(Map<String,String> userData,
                                                                           int zoom)

createLineStyleSet

protected abstract com.nutiteq.style.StyleSet<com.nutiteq.style.LineStyle> createLineStyleSet(Map<String,String> userData,
                                                                         int zoom)

createPolygonStyleSet

protected abstract com.nutiteq.style.StyleSet<com.nutiteq.style.PolygonStyle> createPolygonStyleSet(Map<String,String> userData,
                                                                               int zoom)