Example usage for com.google.gwt.gdata.client.contacts ContactGroupEntry getEtag

Introduction

In this page you can find the example usage for com.google.gwt.gdata.client.contacts ContactGroupEntry getEtag.

Prototype

public final native String getEtag() ;

Source Link

Document

Returns the entity tag of the entry.

Usage

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

License:Apache License

/**
 * Retrieve the contact groups feed using the Contacts service and
 * the contact groupd feed uri./*from www .j a v a2s .  co  m*/
 * On success, identify the first group entry with a title starting
 * with "GWT-Contacts-Client", this is the group that will be deleted.
 * If no contact group is found, display a message.
 * Otherwise call deleteContactGroup to delete the group entry.
 * Alternatively we could also have used deleteContactGroup.deleteEntry to
 * delete the contact group, but the effect is the same.
 * 
 * @param contactGroupsFeedUri The contact groups feed uri
 */
private void getContactGroups(String contactGroupsFeedUri) {
    showStatus("Loading contact groups feed...", false);
    service.getContactGroupFeed(contactGroupsFeedUri, new ContactGroupFeedCallback() {
        public void onFailure(CallErrorException caught) {
            showStatus(
                    "An error occurred while retrieving the contact groups " + "feed: " + caught.getMessage(),
                    true);
        }

        public void onSuccess(ContactGroupFeed result) {
            ContactGroupEntry[] entries = result.getEntries();
            ContactGroupEntry targetGroup = null;
            for (ContactGroupEntry group : entries) {
                String title = group.getTitle().getText();
                if (title.startsWith("GWT-Contacts-Client")) {
                    targetGroup = group;
                    break;
                }
            }
            if (targetGroup == null) {
                showStatus("No contacts were found with a title starting with " + "'GWT-Contacts-Client'.",
                        false);
            } else {
                String contactGroupEntryUri = targetGroup.getEditLink().getHref();
                deleteContactGroup(contactGroupEntryUri, targetGroup.getEtag());
            }
        }
    });
}

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