Application: gvSIG desktop

package org.gvsig.fmap.dal.feature;

import org.gvsig.fmap.dal.DataTypes;

import org.gvsig.tools.evaluator.Evaluator;

/**

 * This interface represents a FeatureType in editable state. 

 * To edit a FeatureType you have to obtain its instance of 

 * EditableFeatureType and then perform editing operations on it.

 * 

 * Once you have completed the editing you can save the changes to the original 

 * FeatureType. This is the only way to edit a FeatureType.

 */

public interface EditableFeatureType extends FeatureType {

        /**

         * Sets the default geometry attribute name

         * 

         * @param name

         *                         string containing the default geometry attribute name

         */

        public void setDefaultGeometryAttributeName(String name);

        /**

         * Removes an attribute from this EditableFeatureType, given

         * a reference to its descriptor.

         * 

         * @param attribute

         *                                 descriptor of the attribute to remove

         * 

         * @return

         *                 true if the attribute was removed successfully, false if not.

         */

        public boolean remove(EditableFeatureAttributeDescriptor attribute);

        /**

         * Removes an attribute given its name

         * 

         * @param name

         *                         string containing the name of the attribute to be removed

         * @return

         *                 

         */

        public Object remove(String name);

        /**

         * Removes an attribute given its index

         * 

         * @param index

         *                         position of the attribute to be removed

         * 

         * @return

         *                 

         */

        public Object remove(int index);

        /**

         * Adds an attribute to this EditableFeatureType. 

         * @param name

         *                         string containing the name of the attribute

         * @param type

         *                         data type of the attribute (one from {@link DataTypes})

         * 

         * @return a new EditableFeatureAttributeDescriptor

         */

        public EditableFeatureAttributeDescriptor add(String name, int type);

        /**

         * Adds an attribute to this EditableFeatureType.

         *  

         * @param name

         *                         string containing the name of the attribute

         * 

         * @param type

         *                         data type of the attribute (one from {@link DataTypes})

         * 

         * @param size

         *                         size of the attribute.

         * 

         * @return a new EditableFeatureAttributeDescriptor

         */

        public EditableFeatureAttributeDescriptor add(String name, int type,

                        int size);

        /**

         * Adds a calculated attribute to this EditableFeatureType.

         *  

         * @param name

         *                         string containing the name of the attribute

         * 

         * @param type

         *                         data type of the attribute (one from {@link DataTypes})

         * 

         * @param evaluator

         *                         an evaluator containing the desired expression

         * 

         * @return a new EditableFeatureAttributeDescriptor

         */        

        public EditableFeatureAttributeDescriptor add(String name, int type,

                        Evaluator evaluator);

        /**

         * Returns the associated FeatureType.

         *  

         * @return the associated FeatureType

         */

        public FeatureType getSource();

        /**

         * Returns a copy of the associated FeatureType.

         * 

         * @return associated FeatureType

         */

        public FeatureType getNotEditableCopy();

        /**

         * Sets whether this EditableFeatureType has an OID.

         * An OID is a unique serializable reference to a feature

         * (a primary key of sorts that may or may not be defined 

         * by the store). If the store does not define this OID then

         * it will be generated by the feature reference itself.

         * 

         * Its main use is to provide a way to persist data associated 

         * to a feature by this OID.

         * 

         * @param hasOID true if it has an OID, or false if not.

         */

        public void setHasOID(boolean hasOID);

        /**

         * Sets the default time attribute name

     * 

     * @param name

     *          string containing the default time attribute name

         */

        public void setDefaultTimeAttributeName(String name);

}