Application: gvSIG desktop » Library: org.gvsig.tools

import org.gvsig.tools.dynobject.DynStruct;

import org.gvsig.tools.persistence.PersistenceManager;

import org.gvsig.tools.persistence.Persistent;

import org.gvsig.tools.persistence.PersistentState;

import org.gvsig.tools.persistence.exception.PersistenceException;

    private Map<String,Object> tags = null;

    public DefaultTags() {

    }

    @Override

    public void loadFromState(PersistentState state)

            throws PersistenceException {

        this.tags = null;

        Map<String,Object> elements = state.getMap("elements");

        if( elements!=null && !elements.isEmpty() ) {

            this.tags = new HashMap<>();

            for (Map.Entry<String,Object> entry : elements.entrySet()) {

                this.tags.put(entry.getKey(), entry.getValue());

            }

        }

    }

    @Override

    public void saveToState(PersistentState state) throws PersistenceException {

        state.set("elements", this.tags);

    }

    private static final String TAGS_PERSISTENCE_DEFINITION_NAME = "Tags";

    public static void registerPersistenceDefinition() {

        PersistenceManager manager = ToolsLocator.getPersistenceManager();

        if (manager.getDefinition(TAGS_PERSISTENCE_DEFINITION_NAME)

                == null) {

            DynStruct definition = manager.addDefinition(DefaultTags.class,

                    TAGS_PERSISTENCE_DEFINITION_NAME,

                    TAGS_PERSISTENCE_DEFINITION_NAME

                        + " persistent definition",

                    null,

                    null

            );

            definition.addDynFieldMap("elements")

                    .setClassOfItems(Object.class);

        }

    }