Method Detail

• getFeature

  java.util.List<Feature> getFeature(java.lang.String datasourceName,
                                   java.lang.String datasetName,
                                   Rectangle2D bounds,
                                   java.lang.String attributeFilter,
                                   java.lang.String[] fields,
                                   PrjCoordSys targetPrj)
  

  Get the elements within the specified space and meet certain attribute filters.

  Parameters:

  datasourceName - the name of the datasource.

  datasetName - the dataset name.

  bounds - The specified query range.

  attributeFilter - Attribute query filter. Such as fieldValue <100, name like '% hotel%'

  fields - An array of fields to be returned. When the parameter is null, all fields are returned.

  targetPrj - The coordinate system of the geometric object in the feature returned

  Returns:

  Feature lists.

• getFeature

  java.util.List<Feature> getFeature(java.lang.String datasourceName,
                                   QueryParameter queryParam,
                                   int maxFeatures,
                                   PrjCoordSys targetPrj)
  

  Gets the elements through SQL query criteria.

  Parameters:

  datasourceName - the name of the datasource.

  queryParam - Query parameters.

  maxFeatures - The maximum number of elements that can be returned.

  targetPrj - The coordinate system of the geometric object in the feature returned

  Returns:

  Feature lists.

• getFeature

  java.util.List<Feature> getFeature(java.lang.String datasourceName,
                                   java.lang.String datasetName,
                                   Geometry geometry,
                                   SpatialQueryMode spatialQueryMode,
                                   java.lang.String attributeFilter,
                                   java.lang.String[] fields,
                                   PrjCoordSys targetPrj)
  

  Gets a feature that has a specific spatial query pattern consistent with the specified geometric object and satisfies the specified attribute filter, and supports dynamic projection to the returned geometry.

  Parameters:

  datasourceName - the name of the datasource.

  datasetName - the dataset name.

  geometry - Geometric object.

  spatialQueryMode - spatial query mode.

  attributeFilter - Filter condition of attribute quering Such as fieldValue <100, name like '% hotel%'

  fields - An array of fields to be returned. When the parameter is null, all fields are returned.

  targetPrj - The array of fields to be returned. All the fields are returned if this parameter is null.

  Returns:

  feature list.