org.geomajas.layer.entity

Interface EntityAttributeService

@Api(allMethods=true)
public interface EntityAttributeService

Service that merges a map of attributes with a feature or association attribute object. The setAttributes(Object, FeatureInfo, EntityMapper, Map) operation makes use of a custom EntityMapper that has be implemented by each layer that wants to make use of this service. The service also provides a getAttribute(Object, FeatureInfo, EntityMapper, String) method to recursively extract attributes.

Since:

1.9.0

Author:

Jan De Moerloose

Method Summary

Methods

Modifier and Type	Method and Description
Attribute<?>	getAttribute(Object feature, FeatureInfo featureInfo, EntityMapper mapper, String name) Recursively gets the attribute from the specified feature.
void	setAttributes(Object object, FeatureInfo featureInfo, EntityMapper mapper, Map<String,Attribute<?>> attributes) Merges the specified attribute map with this layer object.

Method Detail

setAttributes

void setAttributes(Object object,
                 FeatureInfo featureInfo,
                 EntityMapper mapper,
                 Map<String,Attribute<?>> attributes)
                   throws LayerException

Merges the specified attribute map with this layer object. This means that the complete attribute graph is merged into the object's entity graph, overriding existing attributes where applicable and creating new ones as well. The resulting objects should be ready to pass to the layer for persistence.

Parameters:

object - the layer-specific object

mapper - the entity mapper

attributes - attribute map

featureInfo - the feature information of the object

Throws:

LayerException - oops

getAttribute

Attribute<?> getAttribute(Object feature,
                        FeatureInfo featureInfo,
                        EntityMapper mapper,
                        String name)
                          throws LayerException

Recursively gets the attribute from the specified feature.

Only works on real attributes, not on synthetic attributes!

Parameters:

feature - the internal feature object

featureInfo - the feature information object

mapper - the entity mapper

name - the name (may be recursive using . or /)

Returns:

the attribute

Throws:

LayerException - oops