Example usage for com.google.gwt.gdata.client.gbase ItemsFeedCallback ItemsFeedCallback

Introduction

In this page you can find the example usage for com.google.gwt.gdata.client.gbase ItemsFeedCallback ItemsFeedCallback.

Prototype

ItemsFeedCallback

Source Link

Usage

From source file:com.google.gwt.gdata.sample.hellogdata.client.GoogleBaseDeleteItemDemo.java

License:Apache License

/**
 * Retrieve the items feed using the Google Base service and
 * the items feed uri. In GData all get, insert, update
 * and delete methods always receive a callback defining success
 * and failure handlers./* w ww  .  ja v a2  s  .  c  o m*/
 * Here, the failure handler displays an error message while the
 * success handler obtains the first Item entry with a title
 * starting with "GWT-GoogleBase-Client" and calls deleteItem
 * to delete the item. Alternatively we could also have used
 * targetItem.deleteEntry but the effect is the same.
 * If no item is found a message is displayed.
 * 
 * @param itemsFeedUri The uri of the items feed
 */
private void getItems(String itemsFeedUri) {
    showStatus("Loading items feed...", false);
    service.getItemsFeed(itemsFeedUri, new ItemsFeedCallback() {
        public void onFailure(CallErrorException caught) {
            showStatus("An error occurred while retrieving the items feed: " + caught.getMessage(), true);
        }

        public void onSuccess(ItemsFeed result) {
            ItemsEntry[] entries = result.getEntries();
            ItemsEntry targetItem = null;
            for (ItemsEntry entry : entries) {
                if (entry.getTitle().getText().startsWith("GWT-GoogleBase-Client")) {
                    targetItem = entry;
                    break;
                }
            }
            if (targetItem == null) {
                showStatus("No item found that contains 'GWT-GoogleBase-Client' " + "in the title.", false);
            } else {
                String itemsEntryUri = targetItem.getSelfLink().getHref();
                deleteItem(itemsEntryUri);
            }
        }
    });
}

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From source file:com.google.gwt.gdata.sample.hellogdata.client.GoogleBaseRetrieveItemAttributesDemo.java

License:Apache License

/**
 * Retrieve the items feed using the Google Base service and
 * the items feed uri. In GData all get, insert, update
 * and delete methods always receive a callback defining success
 * and failure handlers./*from   w w  w . ja v a  2s  .  c  om*/
 * Here, the failure handler displays an error message while the
 * success handler obtains the first Item entry with a title
 * starting with "GWT-GoogleBase-Client" and calls showData
 * to display the item's attributes.
 * 
 * @param itemsFeedUri The uri of the items feed
 */
private void getItems(String itemsFeedUri) {
    showStatus("Loading items feed...", false);
    service.getItemsFeed(itemsFeedUri, new ItemsFeedCallback() {
        public void onFailure(CallErrorException caught) {
            showStatus("An error occurred while retrieving the items feed: " + caught.getMessage(), true);
        }

        public void onSuccess(ItemsFeed result) {
            ItemsEntry[] entries = result.getEntries();
            if (entries.length == 0) {
                showStatus("You have no items.", false);
            } else {
                ItemsEntry targetItem = null;
                for (ItemsEntry entry : entries) {
                    String title = entry.getTitle().getText();
                    if (title.startsWith("GWT-GoogleBase-Client")) {
                        targetItem = entry;
                        break;
                    }
                }
                if (targetItem == null) {
                    showStatus("No item found that contains 'GWT-GoogleBase-Client' " + "in the title.", false);
                } else {
                    showData(targetItem.getAttributes());
                }
            }
        }
    });
}

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From source file:com.google.gwt.gdata.sample.hellogdata.client.GoogleBaseRetrieveItemsDemo.java

License:Apache License

/**
 * Retrieve the items feed using the Google Base service and
 * the items feed uri. In GData all get, insert, update
 * and delete methods always receive a callback defining success
 * and failure handlers.//from  w  ww  . j  a  va 2s .c  om
 * Here, the failure handler displays an error message while the
 * success handler calls showData to display the item entries.
 * 
 * @param itemsFeedUri The uri of the items feed
 */
private void getItems(String itemsFeedUri) {
    showStatus("Loading items feed...", false);
    service.getItemsFeed(itemsFeedUri, new ItemsFeedCallback() {
        public void onFailure(CallErrorException caught) {
            showStatus("An error occurred while retrieving the items feed: " + caught.getMessage(), true);
        }

        public void onSuccess(ItemsFeed result) {
            ItemsEntry[] entries = result.getEntries();
            if (entries.length == 0) {
                showStatus("You have no items.", false);
            } else {
                showData(entries);
            }
        }
    });
}

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From source file:com.google.gwt.gdata.sample.hellogdata.client.GoogleBaseRetrieveMediaDemo.java

License:Apache License

/**
 * Retrieve the items feed using the Google Base service and
 * the items feed uri. In GData all get, insert, update
 * and delete methods always receive a callback defining success
 * and failure handlers.//from   w ww .ja v a 2s . co m
 * Here, the failure handler displays an error message while the
 * success handler obtains the first item entry that is associated
 * with on or more media attachments and calls getMedia to
 * retrieve its media entries.
 * 
 * @param itemsFeedUri The uri of the items feed
 */
private void getItems(String itemsFeedUri) {
    showStatus("Loading items feed...", false);
    service.getItemsFeed(itemsFeedUri, new ItemsFeedCallback() {
        public void onFailure(CallErrorException caught) {
            showStatus("An error occurred while retrieving the items feed: " + caught.getMessage(), true);
        }

        public void onSuccess(ItemsFeed result) {
            ItemsEntry[] entries = result.getEntries();
            ItemsEntry targetItem = null;
            for (ItemsEntry entry : entries) {
                FeedLink<MediaFeed> link = entry.getFeedLink().cast();
                if (link.getCountHint() > 0) {
                    targetItem = entry;
                    break;
                }
            }
            if (targetItem == null) {
                showStatus("You have no items containing media.", false);
            } else {
                String itemsEntryUri = targetItem.getSelfLink().getHref();
                getMedia(itemsEntryUri);
            }
        }
    });
}

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From source file:com.google.gwt.gdata.sample.hellogdata.client.GoogleBaseUpdateItemDemo.java

License:Apache License

/**
 * Retrieve the items feed using the Google Base service and
 * the items feed uri. In GData all get, insert, update
 * and delete methods always receive a callback defining success
 * and failure handlers.//from ww w .j a v a  2s. c o m
 * Here, the failure handler displays an error message while the
 * success handler obtains the first Item entry with a title
 * starting with "GWT-GoogleBase-Client" and calls updateItem
 * to update the item.
 * If no item is found a message is displayed.
 * 
 * @param itemsFeedUri The uri of the items feed
 */
private void getItems(String itemsFeedUri) {
    showStatus("Loading items feed...", false);
    service.getItemsFeed(itemsFeedUri, new ItemsFeedCallback() {
        public void onFailure(CallErrorException caught) {
            showStatus("An error occurred while retrieving the items feed: " + caught.getMessage(), true);
        }

        public void onSuccess(ItemsFeed result) {
            ItemsEntry[] entries = result.getEntries();
            ItemsEntry targetEntry = null;
            for (ItemsEntry entry : entries) {
                if (entry.getTitle().getText().startsWith("GWT-GoogleBase-Client")) {
                    targetEntry = entry;
                    break;
                }
            }
            if (targetEntry == null) {
                showStatus("No item found that contains 'GWT-GoogleBase-Client' " + "in the title.", false);
            } else {
                updateItem(targetEntry);
            }
        }
    });
}

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