/**
* Runs a query with additional serialization parameters.
*
* @throws IOException I/O exception
*/
@Test
public void querySerial1() throws IOException {
session.execute("set serializer wrap-prefix=db,wrap-uri=ns");
final Query query = session.query(WRAPPER + "()");
assertTrue("Result expected.", query.more());
assertEqual("<db:results xmlns:db=\"ns\"/>", query.next());
assertFalse("No result expected.", query.more());
}
/**
* Queries empty content.
*
* @throws IOException I/O exception
*/
@Test
public void queryEmptyString() throws IOException {
final Query q = session.query("'',1");
assertTrue(q.more());
assertEqual("", q.next());
assertTrue(q.more());
assertEqual("1", q.next());
assertNull(q.next());
}
/**
* Queries binary content.
*
* @throws IOException I/O exception
*/
@Test
public void queryNullBinary() throws IOException {
session.execute("create db " + NAME);
session.store("X", new ArrayInput("\0"));
assertEqual("\0", session.execute("xquery " + RAW + _DB_RETRIEVE.args(NAME, "X")));
assertEqual("\0", session.query(RAW + _DB_RETRIEVE.args(NAME, "X")).execute());
final Query q = session.query(RAW + _DB_RETRIEVE.args(NAME, "X"));
assertTrue(q.more());
assertEqual("\0", q.next());
assertFalse(q.more());
}
/**
* Runs a query and retrieves multiple results as string.
*
* @throws IOException I/O exception
*/
@Test
public void queryMore() throws IOException {
final Query query = session.query("1 to 3");
int c = 0;
while (query.more()) assertEqual(++c, query.next());
query.close();
}
/**
* Runs a query with additional serialization parameters.
*
* @throws IOException I/O exception
*/
@Test
public void querySerial2() throws IOException {
final Query query = session.query(WRAPPER + "1 to 2");
assertTrue("Result expected.", query.more());
assertEqual(
"<db:results xmlns:db=\"ns\"> <db:result>1</db:result>"
+ " <db:result>2</db:result></db:results>",
query.next());
}
/**
* Runs a query, using more().
*
* @throws IOException I/O exception
*/
@Test
public void queryInit() throws IOException {
final Query query = session.query("()");
assertFalse("No result was expected.", query.more());
}
/**
* Runs a query and retrieves the result as string.
*
* @throws IOException I/O exception
*/
@Test
public void query2() throws IOException {
final Query query = session.query("1");
if (!query.more()) fail("No result returned");
assertEqual("1", query.next());
}