android/src/com/mapswithme/maps/purchase/BillingConnection.java


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package com.mapswithme.maps.purchase;

import android.support.annotation.NonNull;

/**
 * Represents a billing connection abstraction.
 */
public interface BillingConnection
{
  /**
   * Opens a connection to the billing manager.
   */
  void open();

  /**
   * Closes the connection to the billing manager.
   */
  void close();

  /**
   * @return the connection state of the billing manager.
   */
  @NonNull
  State getState();

  enum State
  {
    DISCONNECTED,
    CONNECTING,
    CONNECTED,
    CLOSED
  }
}