VisitContextWrapper.java

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package javax.faces.component.visit;

import java.util.Collection;
import java.util.Set;

import javax.faces.FacesWrapper;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;

/**
 * <p class="changed_added_2_0"><span class="changed_modified_2_3">Provides</span>
 * a simple implementation of
 * {@link VisitContext} that can be subclassed by developers wishing to
 * provide specialized behavior to an existing {@link VisitContext}
 * instance.  The default implementation of all methods is to call
 * through to the wrapped {@link VisitContext} instance.</p>
 *
 * <p class="changed_added_2_3">Usage: extend this class and push the implementation being wrapped to the
 * constructor and use {@link #getWrapped} to access the instance being wrapped.</p>
 *
 * @since 2.0
 */
public abstract class VisitContextWrapper extends VisitContext implements FacesWrapper<VisitContext>{

    private VisitContext wrapped;

    /**
     * @deprecated Use the other constructor taking the implementation being wrapped.
     */
    @Deprecated
    public VisitContextWrapper() {

    }

    /**
     * <p class="changed_added_2_3">If this visit context has been decorated,
     * the implementation doing the decorating should push the implementation being wrapped to this constructor.
     * The {@link #getWrapped()} will then return the implementation being wrapped.</p>
     *
     * @param wrapped The implementation being wrapped.
     * @since 2.3
     */
    public VisitContextWrapper(VisitContext wrapped) {
        this.wrapped = wrapped;
    }

    @Override
    public VisitContext getWrapped() {
        return wrapped;
    }

    @Override
    public FacesContext getFacesContext() {
        return getWrapped().getFacesContext();
    }

    @Override
    public Set<VisitHint> getHints() {
        return getWrapped().getHints();
    }

    @Override
    public Collection<String> getIdsToVisit() {
        return getWrapped().getIdsToVisit();
    }

    @Override
    public Collection<String> getSubtreeIdsToVisit(UIComponent component) {
        return getWrapped().getSubtreeIdsToVisit(component);
    }

    @Override
    public VisitResult invokeVisitCallback(UIComponent component, VisitCallback callback) {
        return getWrapped().invokeVisitCallback(component, callback);
    }

}