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[#1143] Add Result.isNotEmpty() for convenience

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This commit is contained in:
Lukas Eder 2012-02-15 17:55:39 +00:00
parent db539ad29c
commit 4bd3feea8d
3 changed files with 25 additions and 12 deletions
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27
jOOQ-test/src/org/jooq/test/_/testcases/FetchTests.java
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@ -900,23 +900,26 @@ extends BaseTest<A, B, S, B2S, BS, L, X, D, T, U, I, IPK, T658, T725, T639, T785
// Fetching several records at once
// ---------------------------------------------------------------------
cursor = create().selectFrom(TBook()).orderBy(TBook_ID()).fetchLazy(fetchSize);
Result<B> fetch0 = cursor.fetch(0);
assertTrue(cursor.fetch(0).isEmpty());
assertTrue(cursor.fetch(0).isEmpty());
List<B> list = cursor.fetch(1);
assertTrue(fetch0.isEmpty());
assertFalse(fetch0.isNotEmpty());
assertTrue(fetch0.isEmpty());
assertFalse(fetch0.isNotEmpty());
assertEquals(1, list.size());
assertEquals(Integer.valueOf(1), list.get(0).getValue(TBook_ID()));
Result<B> fetch1 = cursor.fetch(1);
assertEquals(1, fetch1.size());
assertEquals(Integer.valueOf(1), fetch1.get(0).getValue(TBook_ID()));
list = cursor.fetch(2);
assertEquals(2, list.size());
assertEquals(Integer.valueOf(2), list.get(0).getValue(TBook_ID()));
assertEquals(Integer.valueOf(3), list.get(1).getValue(TBook_ID()));
fetch1 = cursor.fetch(2);
assertEquals(2, fetch1.size());
assertEquals(Integer.valueOf(2), fetch1.get(0).getValue(TBook_ID()));
assertEquals(Integer.valueOf(3), fetch1.get(1).getValue(TBook_ID()));
list = cursor.fetch(2);
fetch1 = cursor.fetch(2);
assertTrue(cursor.isClosed());
assertEquals(1, list.size());
assertEquals(Integer.valueOf(4), list.get(0).getValue(TBook_ID()));
assertEquals(1, fetch1.size());
assertEquals(Integer.valueOf(4), fetch1.get(0).getValue(TBook_ID()));
}
}

5
jOOQ/src/main/java/org/jooq/Result.java
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@ -1624,6 +1624,11 @@ public interface Result<R extends Record> extends FieldProvider, List<R>, Attach
@Override
boolean isEmpty();
/**
* Whether there are any records contained in this <code>Result</code>
*/
boolean isNotEmpty();
/**
* Get a simple formatted representation of this result.
* <p>

5
jOOQ/src/main/java/org/jooq/impl/ResultImpl.java
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@ -167,6 +167,11 @@ class ResultImpl<R extends Record> implements Result<R>, AttachableInternal {
return records.isEmpty();
}
@Override
public final boolean isNotEmpty() {
return !records.isEmpty();
}
@Override
public final <T> T getValue(int index, Field<T> field) throws IndexOutOfBoundsException {
return get(index).getValue(field);