Request.java revision 5ba19a0e69ad3a651b8f13ba45de48a56b56ce36 
1package com.bumptech.glide.request;
2
3/**
4 * A request that loads a resource for an {@link com.bumptech.glide.request.target.Target}.
5 */
6public interface Request {
7
8    /**
9     * Starts an asynchronous load.
10     */
11    void begin();
12
13    /**
14     * Identical to {@link #clear()} except that the request may later be restarted.
15     */
16    void pause();
17
18    /**
19     * Prevents any bitmaps being loaded from previous requests, releases any resources held by this request,
20     * displays the current placeholder if one was provided, and marks the request as having been cancelled.
21     */
22    void clear();
23
24    /**
25     * Returns true if this request is paused and may be restarted.
26     */
27    boolean isPaused();
28
29    /**
30     * Returns true if this request is running and has not completed or failed.
31     */
32    boolean isRunning();
33
34    /**
35     * Returns true if the request has completed successfully.
36     */
37    boolean isComplete();
38
39    /**
40     * Returns true if a non-placeholder resource is set. For Requests that load more than one resource, isResourceSet
41     * may return true even if {@link #isComplete()}} returns false.
42     */
43    boolean isResourceSet();
44
45    /**
46     * Returns true if the request has been cancelled.
47     */
48    boolean isCancelled();
49
50    /**
51     * Returns true if the request has failed.
52     */
53    boolean isFailed();
54
55    /**
56     * Recycles the request object and releases its resources.
57     */
58    void recycle();
59}
60