Java Code Examples for org.litepal.LitePal#findLast()
The following examples show how to use
org.litepal.LitePal#findLast() .
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Example 1
| Source File: AddAndEditPoetryActivity.java From PoetryWeather with Apache License 2.0 | 5 votes |
|
/**
* 初始化id
*/
private void checkId() {
PoetryDb poetryDb = LitePal.findLast(PoetryDb.class);
if (poetryDb == null) {
id = 1;
} else {
id = poetryDb.getPoetryDb_id() + 1;
}
}
Example 2
| Source File: QueryClusterTest.java From LitePal with Apache License 2.0 | 5 votes |
|
@Test
public void testLimit() {
List<Book> bookList = LitePal.limit(1).find(Book.class);
assertEquals(1, bookList.size());
Book book = bookList.get(0);
assertTrue(book.isSaved());
Book firstBook = LitePal.findFirst(Book.class);
assertTrue(firstBook.isSaved());
assertEquals(firstBook.getBookName(), book.getBookName());
assertEquals(firstBook.getPages(), book.getPages());
assertEquals(firstBook.isPublished(), book.isPublished());
assertEquals(firstBook.getArea(), book.getArea());
assertEquals(firstBook.getPrice(), book.getPrice());
assertEquals(firstBook.getIsbn(), book.getIsbn());
assertEquals(firstBook.getLevel(), book.getLevel());
assertEquals(firstBook.getId(), book.getId());
bookList = LitePal.order("id desc").limit(1).find(Book.class);
assertEquals(1, bookList.size());
book = bookList.get(0);
assertTrue(book.isSaved());
Book lastBook = LitePal.findLast(Book.class);
assertTrue(lastBook.isSaved());
assertEquals(lastBook.getBookName(), book.getBookName());
assertEquals(lastBook.getPages(), book.getPages());
assertEquals(lastBook.isPublished(), book.isPublished());
assertEquals(lastBook.getArea(), book.getArea());
assertEquals(lastBook.getPrice(), book.getPrice());
assertEquals(lastBook.getIsbn(), book.getIsbn());
assertEquals(lastBook.getLevel(), book.getLevel());
assertEquals(lastBook.getId(), book.getId());
}
Example 3
| Source File: QueryBasicTest.java From LitePal with Apache License 2.0 | 5 votes |
|
@Test
public void testFindLast() {
List<Book> expectedBooks = getBooks(null, null, null, null, null, null, null);
Book expectedLastBook = expectedBooks.get(expectedBooks.size() - 1);
Book realLastBook = LitePal.findLast(Book.class);
assertEquals(expectedLastBook.getId(), realLastBook.getId());
assertEquals(expectedLastBook.getBookName(), realLastBook.getBookName());
assertEquals(expectedLastBook.getPages(), realLastBook.getPages());
assertEquals(expectedLastBook.getPrice(), realLastBook.getPrice());
assertEquals(expectedLastBook.getArea(), realLastBook.getArea());
assertEquals(expectedLastBook.getIsbn(), realLastBook.getIsbn());
assertEquals(expectedLastBook.getLevel(), realLastBook.getLevel());
assertEquals(expectedLastBook.isPublished(), realLastBook.isPublished());
assertTrue(realLastBook.isSaved());
}
Example 4
| Source File: QueryEagerTest.java From LitePal with Apache License 2.0 | 5 votes |
|
@Test
public void testEagerFindLast() {
resetData();
Teacher t1 = LitePal.findLast(Teacher.class);
assertEquals(0, t1.getStudents().size());
t1 = LitePal.findLast(Teacher.class, true);
assertTrue(0 < t1.getStudents().size());
}
Example 5
| Source File: QueryClusterTest.java From LitePal with Apache License 2.0 | 4 votes |
|
@Test
public void testCluster() {
long[] ids = new long[3];
for (int i = 0; i < 3; i++) {
Book book = new Book();
book.setPages(5555);
book.setPublished(true);
book.setPrice(40.99);
book.save();
ids[i] = book.getId();
}
List<Book> books = LitePal
.select("pages", "isPublished")
.where("id=? or id=? or id=?", String.valueOf(ids[0]), String.valueOf(ids[1]),
String.valueOf(ids[2])).order("id").limit(2).offset(1).find(Book.class);
Book firstBook = LitePal
.select("pages", "isPublished")
.where("id=? or id=? or id=?", String.valueOf(ids[0]), String.valueOf(ids[1]),
String.valueOf(ids[2])).order("id").limit(2).offset(1).findFirst(Book.class);
Book lastBook = LitePal
.select("pages", "isPublished")
.where("id=? or id=? or id=?", String.valueOf(ids[0]), String.valueOf(ids[1]),
String.valueOf(ids[2])).order("id").limit(2).offset(1).findLast(Book.class);
assertEquals(2, books.size());
assertTrue(books.get(0).getId() < books.get(1).getId());
for (int i = 0; i < 2; i++) {
Book b = books.get(i);
assertEquals(ids[i + 1], b.getId());
assertTrue(b.isSaved());
assertNull(b.getBookName());
assertTrue(5555 == b.getPages());
assertEquals(true, b.isPublished());
assertEquals(0f, b.getArea());
assertEquals(0.0, b.getPrice());
assertEquals(0, b.getIsbn());
assertEquals(0, b.getLevel());
if (i == 0) {
assertEquals(firstBook.isSaved(), b.isSaved());
assertEquals(firstBook.getBookName(), b.getBookName());
assertEquals(firstBook.getPages(), b.getPages());
assertEquals(firstBook.isPublished(), b.isPublished());
assertEquals(firstBook.getPrice(), b.getPrice());
assertEquals(firstBook.getArea(), b.getArea());
assertEquals(firstBook.getIsbn(), b.getIsbn());
assertEquals(firstBook.getLevel(), b.getLevel());
assertEquals(firstBook.getId(), b.getId());
}
if (i == books.size() - 1) {
assertEquals(lastBook.isSaved(), b.isSaved());
assertEquals(lastBook.getBookName(), b.getBookName());
assertEquals(lastBook.getPages(), b.getPages());
assertEquals(lastBook.isPublished(), b.isPublished());
assertEquals(lastBook.getPrice(), b.getPrice());
assertEquals(lastBook.getArea(), b.getArea());
assertEquals(lastBook.getIsbn(), b.getIsbn());
assertEquals(lastBook.getLevel(), b.getLevel());
assertEquals(lastBook.getId(), b.getId());
}
}
Book first1 = LitePal.findFirst(Book.class);
Book first2 = LitePal.select("id").findFirst(Book.class);
assertEquals(first1.getId(), first2.getId());
Book last1 = LitePal.findLast(Book.class);
Book last2 = LitePal.select("id").findLast(Book.class);
assertEquals(last1.getId(), last2.getId());
List<Book> firstTwoBooks = LitePal.where("id=? or id=? or id=?", String.valueOf(ids[0]), String.valueOf(ids[1]),
String.valueOf(ids[2])).order("id").limit(2).find(Book.class);
firstBook = LitePal.where("id=? or id=? or id=?", String.valueOf(ids[0]), String.valueOf(ids[1]),
String.valueOf(ids[2])).order("id").limit(2).findFirst(Book.class);
lastBook = LitePal.where("id=? or id=? or id=?", String.valueOf(ids[0]), String.valueOf(ids[1]),
String.valueOf(ids[2])).order("id").limit(2).findLast(Book.class);
assertEquals(firstTwoBooks.get(0).getId(), firstBook.getId());
assertEquals(firstTwoBooks.get(1).getId(), lastBook.getId());
}
