EntityContainer.java

package jpaoletti.jpm.core;

import java.util.ArrayList;
import java.util.List;

/**
 * @author jpaoletti
 *
 * This class encapsulate an entity, its list and everything associated to an
 * entity. An instance of this class is inserted in session under demand and
 * stay in session for fast reference.
 *
 */
public class EntityContainer {

    private String id;
    private Entity entity;
    private PaginatedList list;
    private List<InstanceId> selectedInstances;
    private EntityInstanceWrapper selected;
    private boolean selectedNew;
    private EntityFilter filter;
    private EntityContainer owner;
    private Operation operation;

    /**
     * Main constructor
     *
     * @param entity The contained entity
     * @param sid The session id
     */
    public EntityContainer(Entity entity) {
        super();
        this.entity = entity;
        this.id = buildId(entity.getId());
        this.selectedNew = false;
    }

    /**
     * Builds a string based on a session id and the entity id. Not implemented.
     *
     * @param sid A session id
     * @param eid The entity id
     * @return The resulting string
     */
    public static String buildId(String eid) {
        //return sid.substring(0,20) + eid.hashCode() + sid.substring(20);
        return eid;
    }

    /**
     * Getter for the id
     *
     * @return The id
     */
    public String getId() {
        return id;
    }

    /**
     *
     * @param id
     */
    public void setId(String id) {
        this.id = id;
    }

    /**
     * Getter for the entity
     *
     * @return The entity
     */
    public Entity getEntity() {
        return entity;
    }

    /**
     *
     * @param entity
     */
    public void setEntity(Entity entity) {
        this.entity = entity;
    }

    /**
     * Getter for the list
     *
     * @return The list
     */
    public PaginatedList getList() {
        return list;
    }

    /**
     *
     * @param list
     */
    public void setList(PaginatedList list) {
        this.list = list;
    }

    /**
     * Setter for selected instance
     *
     * @param selected
     */
    public void setSelected(EntityInstanceWrapper selected) {
        this.selected = selected;
        setSelectedNew(false);
    }

    /**
     * Getter for the selected instance wrapper
     *
     * @return The wrapper
     */
    public EntityInstanceWrapper getSelected() {
        return selected;
    }

    /**
     *
     * @param new_
     */
    public void setSelectedNew(boolean new_) {
        this.selectedNew = new_;
    }

    /**
     * Indicate if the actual selected is new
     *
     * @return true when selected is new
     */
    public boolean isSelectedNew() {
        return selectedNew;
    }

    /**
     * @param filter the filter to set
     */
    public void setFilter(EntityFilter filter) {
        this.filter = filter;
    }

    /**
     * @return the filter
     */
    public EntityFilter getFilter() {
        return filter;
    }

    /**
     * @return the selected instances ids
     */
    public List<InstanceId> getSelectedInstanceIds() {
        if (selectedInstances == null) {
            selectedInstances = new ArrayList<InstanceId>();
        }
        return selectedInstances;
    }

    /**
     * Getter for the owner
     *
     * @return The owner
     */
    public EntityContainer getOwner() {
        return owner;
    }

    /**
     *
     * @param owner
     */
    public void setOwner(EntityContainer owner) {
        this.owner = owner;
    }

    /**
     * Getter for the operation
     *
     * @return The operation
     */
    public Operation getOperation() {
        return operation;
    }

    /**
     *
     * @param operation
     */
    public void setOperation(Operation operation) {
        this.operation = operation;
    }

    public boolean isSelected(InstanceId id) {
        return getSelectedInstanceIds().contains(id);
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final EntityContainer other = (EntityContainer) obj;
        if ((this.getId() == null) ? (other.getId() != null) : !this.getId().equals(other.getId())) {
            return false;
        }
        return true;
    }

    @Override
    public int hashCode() {
        int hash = 7;
        hash = 41 * hash + (this.getId() != null ? this.getId().hashCode() : 0);
        return hash;
    }
}