.. contents:

class Table
-------------

**Represents gvsig TableDocument** It is able to manage its own data set 

- features([expresion]): Return table features set
    
  - param expresion: (Optional) Filter to apply to the feature set to select 
    determinates features that match with expression
  - type expresion: string
  - return: FeatureSet

- edit(): Set data store in edition mode

- append(values): Create a new feature from given values and insert it in the 
  feature set
    
  - param values: dictionary with name property value or list named params
  - type values: dict

- updateSchema(schema): Update table data definition with schema.

  - param schema: Modified table schema
  - type schema: Editable Schema

- update(feature): Update exist feature in the layer featureSet
    
  - param feature: Feature to modify in data set
  - type feature: Feature

- getSchema(): Return layer schema definition
   
- commit(): Finish layer edition
  
- abort(): Cancel layer edition
  
- getSelection(): Return layer features selected set

class Layer
-------------

**Represents gvsig view layer** . Also is able to manage its own data set
  
- features([expresion]): Return layer features set
    
  - param expresion: (Optional) Filter to apply to the feature set to select 
    determinates features that match with expression
  - type expresion: string
  - return: FeatureSet

- edit(): Set data store in edition mode

- append(values): Create a new feature from given values and insert it in the 
  feature set
    
  - param values: dictionary with name property value or list named params
  - type values: dict
  
- updateSchema(schema): Update table data definition with schema.

  - param schema: Modified table schema
  - type schema: Editable Schema


- update(editableFeature): Update exist feature in the layer featureSet
    
  - param editableFeature: editableFeature
  - type editableFeature: Java editableFeature

- getSchema(): Return layer schema definition
   
- commit(): Finish layer edition
  
- abort(): Cancel layer edition
  
- getSelection(): Return layer features selected set (FeatureSet)

- getTypeVectorLayer(): Return layer geometry type.
  
class FeatureSet 
----------------

**Return Layer/Table set of features**

- getCount(): Return set number of ocurrences
  
class Feature
-------------

**Represents layer/table feature data**
  
- geometry(): Return feature default geometry

- getValues(): Return dictionary with key name property and value of the 
  feature attributes
  
- edit(): Return editable feature instance #FIXME

class Schema
-------------

**Layer/table feature definition**
  
- append(name, type[, size][, default]): Adds property to feature properties definition. 
  
  - param name: Feature property name
  - type name: String
  - param type: Feature property type
  - type name: String
  - param size: Feature property size
  - type size: int
  - param default: Feature property default value
  - return: new atribute

- get(name, default=None): Looks for property name named and if not find it 
  return default. Return a feature attribute descriptor that contains 
  information about one of the attributes in a feature, such as its name, 
  data type or precision. 
        
  - param name: Property name
  - type name: string
  - param default: Return value if not find property name
  - type value: Object
  - return: AttributeDescriptor_

- modify(): set definition in edition mode to add new properties
  
- getCopy(): Return schema copy


Vectorial data util functions      
------------------------------

- createSchema([schema]): Return layer definition. If schema is not None the 
  definition is used to create new schema

  - param schema: (Optional) 
  - type: schema: Schema

- createShape(definition, filename, geometryType[, CRS]): Create a new shape layer. 
  If CRS is not defined will use "wsg84"
      
  - param definition: layer data definition
  - type definition: Schema
  - param filename: absolute path for shape files. 
  - type filename: string
  - param geometryType: geometry type for shape
  - type geometryType: string
  - param CRS: Projection name
  - type CRS: string
  - return: new shape layer
  - rtype: Layer

- createDBF(definition, DbfFile[, CRS]): Create a new dbf file that could 
  be added to the gvSIG project as a TableDocument
  
  - param definition: layer data definition
  - type definition: Schema
  - param DbfFile: absolute path for shape files. 
  - type DbfFile: string
  - param geometryType: geometry type for shape
  - type geometryType: string
  - return: new dbf
  - rtype: Table

.. _AttributeDescriptor: http://devel.gvsig.org/sites/org.gvsig.fmap.dal/2.0-SNAPSHOT/gvsig-base-library-pom/org.gvsig.fmap.dal/apidoc/org/gvsig/fmap/dal/feature/FeatureAttributeDescriptor.html