public void setIfModifiedSince(long ifModifiedSince) {
        connection.setIfModifiedSince(ifModifiedSince);
        this.ifModifiedSince = ifModifiedSince;
    }

    public long getIfModifiedSince() {
        return connection.getIfModifiedSince();
    }

    public boolean getDefaultUseCaches() {
        return connection.getDefaultUseCaches();
    }

    public void setDefaultUseCaches(boolean defaultUseCaches) {

        this.connection.setIfModifiedSince(ifModifiedSince);
        this.ifModifiedSince = ifModifiedSince;
    }


    @Override
    public long getIfModifiedSince () {
        return this.connection.getIfModifiedSince();
    }


    @Override
    public boolean getDefaultUseCaches () {
        return this.connection.getDefaultUseCaches();
    }


    @Override