org.apache.spark.api.java.Optional.or()方法的使用及代码示例

x33g5p2x  于2022-01-26 转载在 其他  
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本文整理了Java中org.apache.spark.api.java.Optional.or()方法的一些代码示例，展示了Optional.or()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Optional.or()方法的具体详情如下：
包路径：org.apache.spark.api.java.Optional
类名称：Optional
方法名：or

Optional.or介绍

暂无

代码示例

代码示例来源：origin: org.apache.spark/spark-core

@Test
public void testFromNullable() {
 Assert.assertTrue(Optional.fromNullable(1).isPresent());
 Assert.assertNotNull(Optional.fromNullable(1).orNull());
 Assert.assertEquals(Integer.valueOf(1), Optional.fromNullable(1).get());
 Assert.assertEquals(Integer.valueOf(1), Optional.fromNullable(1).or(2));
 Assert.assertEquals(Integer.valueOf(1), Optional.fromNullable(1).orElse(2));
 Assert.assertFalse(Optional.fromNullable(null).isPresent());
 Assert.assertNull(Optional.fromNullable(null).orNull());
 Assert.assertEquals(Integer.valueOf(2), Optional.<Integer>fromNullable(null).or(2));
 Assert.assertEquals(Integer.valueOf(2), Optional.<Integer>fromNullable(null).orElse(2));
}

代码示例来源：origin: com.davidbracewell/mango

@Override
public <V> MPairStream<T, Map.Entry<U, V>> rightOuterJoin(@NonNull MPairStream<? extends T, ? extends V> stream) {
 return new SparkPairStream<>(rdd.rightOuterJoin(toPairRDD(stream))
                 .mapToPair(t -> Cast.as(
                   new scala.Tuple2<>(t._1(), Tuple2.of(t._2()._1().or(null), t._2()._2())))));
}

代码示例来源：origin: org.apache.spark/spark-core_2.11

@Test
public void testOfNullable() {
 Assert.assertTrue(Optional.ofNullable(1).isPresent());
 Assert.assertNotNull(Optional.ofNullable(1).orNull());
 Assert.assertEquals(Integer.valueOf(1), Optional.ofNullable(1).get());
 Assert.assertEquals(Integer.valueOf(1), Optional.ofNullable(1).or(2));
 Assert.assertEquals(Integer.valueOf(1), Optional.ofNullable(1).orElse(2));
 Assert.assertFalse(Optional.ofNullable(null).isPresent());
 Assert.assertNull(Optional.ofNullable(null).orNull());
 Assert.assertEquals(Integer.valueOf(2), Optional.<Integer>ofNullable(null).or(2));
 Assert.assertEquals(Integer.valueOf(2), Optional.<Integer>ofNullable(null).orElse(2));
}

代码示例来源：origin: com.davidbracewell/mango

@Override
public <V> MPairStream<T, Map.Entry<U, V>> leftOuterJoin(@NonNull MPairStream<? extends T, ? extends V> stream) {
 return new SparkPairStream<>(rdd.leftOuterJoin(toPairRDD(stream))
                 .mapToPair(t -> Cast.as(
                   new scala.Tuple2<>(t._1(), Tuple2.of(t._2()._1(), t._2()._2().or(null))))));
}

代码示例来源：origin: org.apache.spark/spark-core_2.11

@Test
public void testFromNullable() {
 Assert.assertTrue(Optional.fromNullable(1).isPresent());
 Assert.assertNotNull(Optional.fromNullable(1).orNull());
 Assert.assertEquals(Integer.valueOf(1), Optional.fromNullable(1).get());
 Assert.assertEquals(Integer.valueOf(1), Optional.fromNullable(1).or(2));
 Assert.assertEquals(Integer.valueOf(1), Optional.fromNullable(1).orElse(2));
 Assert.assertFalse(Optional.fromNullable(null).isPresent());
 Assert.assertNull(Optional.fromNullable(null).orNull());
 Assert.assertEquals(Integer.valueOf(2), Optional.<Integer>fromNullable(null).or(2));
 Assert.assertEquals(Integer.valueOf(2), Optional.<Integer>fromNullable(null).orElse(2));
}

代码示例来源：origin: org.apache.spark/spark-core_2.10

@Test
public void testFromNullable() {
 Assert.assertTrue(Optional.fromNullable(1).isPresent());
 Assert.assertNotNull(Optional.fromNullable(1).orNull());
 Assert.assertEquals(Integer.valueOf(1), Optional.fromNullable(1).get());
 Assert.assertEquals(Integer.valueOf(1), Optional.fromNullable(1).or(2));
 Assert.assertEquals(Integer.valueOf(1), Optional.fromNullable(1).orElse(2));
 Assert.assertFalse(Optional.fromNullable(null).isPresent());
 Assert.assertNull(Optional.fromNullable(null).orNull());
 Assert.assertEquals(Integer.valueOf(2), Optional.<Integer>fromNullable(null).or(2));
 Assert.assertEquals(Integer.valueOf(2), Optional.<Integer>fromNullable(null).orElse(2));
}

代码示例来源：origin: org.apache.spark/spark-core

@Test
public void testOfNullable() {
 Assert.assertTrue(Optional.ofNullable(1).isPresent());
 Assert.assertNotNull(Optional.ofNullable(1).orNull());
 Assert.assertEquals(Integer.valueOf(1), Optional.ofNullable(1).get());
 Assert.assertEquals(Integer.valueOf(1), Optional.ofNullable(1).or(2));
 Assert.assertEquals(Integer.valueOf(1), Optional.ofNullable(1).orElse(2));
 Assert.assertFalse(Optional.ofNullable(null).isPresent());
 Assert.assertNull(Optional.ofNullable(null).orNull());
 Assert.assertEquals(Integer.valueOf(2), Optional.<Integer>ofNullable(null).or(2));
 Assert.assertEquals(Integer.valueOf(2), Optional.<Integer>ofNullable(null).orElse(2));
}

代码示例来源：origin: org.apache.spark/spark-core_2.10

@Test
public void testOfNullable() {
 Assert.assertTrue(Optional.ofNullable(1).isPresent());
 Assert.assertNotNull(Optional.ofNullable(1).orNull());
 Assert.assertEquals(Integer.valueOf(1), Optional.ofNullable(1).get());
 Assert.assertEquals(Integer.valueOf(1), Optional.ofNullable(1).or(2));
 Assert.assertEquals(Integer.valueOf(1), Optional.ofNullable(1).orElse(2));
 Assert.assertFalse(Optional.ofNullable(null).isPresent());
 Assert.assertNull(Optional.ofNullable(null).orNull());
 Assert.assertEquals(Integer.valueOf(2), Optional.<Integer>ofNullable(null).or(2));
 Assert.assertEquals(Integer.valueOf(2), Optional.<Integer>ofNullable(null).orElse(2));
}

代码示例来源：origin: org.apache.spark/spark-core

@Test
public void testEmpty() {
 Assert.assertFalse(Optional.empty().isPresent());
 Assert.assertNull(Optional.empty().orNull());
 Assert.assertEquals("foo", Optional.empty().or("foo"));
 Assert.assertEquals("foo", Optional.empty().orElse("foo"));
}

代码示例来源：origin: org.apache.spark/spark-core

@Test
public void testOf() {
 Assert.assertTrue(Optional.of(1).isPresent());
 Assert.assertNotNull(Optional.of(1).orNull());
 Assert.assertEquals(Integer.valueOf(1), Optional.of(1).get());
 Assert.assertEquals(Integer.valueOf(1), Optional.of(1).or(2));
 Assert.assertEquals(Integer.valueOf(1), Optional.of(1).orElse(2));
}

代码示例来源：origin: org.apache.spark/spark-core_2.11

@Test
public void testEmpty() {
 Assert.assertFalse(Optional.empty().isPresent());
 Assert.assertNull(Optional.empty().orNull());
 Assert.assertEquals("foo", Optional.empty().or("foo"));
 Assert.assertEquals("foo", Optional.empty().orElse("foo"));
}

代码示例来源：origin: org.apache.spark/spark-core

@Test
public void testAbsent() {
 Assert.assertFalse(Optional.absent().isPresent());
 Assert.assertNull(Optional.absent().orNull());
 Assert.assertEquals("foo", Optional.absent().or("foo"));
 Assert.assertEquals("foo", Optional.absent().orElse("foo"));
}

代码示例来源：origin: org.apache.spark/spark-core_2.10

@Test
public void testOf() {
 Assert.assertTrue(Optional.of(1).isPresent());
 Assert.assertNotNull(Optional.of(1).orNull());
 Assert.assertEquals(Integer.valueOf(1), Optional.of(1).get());
 Assert.assertEquals(Integer.valueOf(1), Optional.of(1).or(2));
 Assert.assertEquals(Integer.valueOf(1), Optional.of(1).orElse(2));
}

代码示例来源：origin: org.apache.spark/spark-core_2.11

@Test
public void testOf() {
 Assert.assertTrue(Optional.of(1).isPresent());
 Assert.assertNotNull(Optional.of(1).orNull());
 Assert.assertEquals(Integer.valueOf(1), Optional.of(1).get());
 Assert.assertEquals(Integer.valueOf(1), Optional.of(1).or(2));
 Assert.assertEquals(Integer.valueOf(1), Optional.of(1).orElse(2));
}

代码示例来源：origin: org.apache.spark/spark-core_2.10

@Test
public void testEmpty() {
 Assert.assertFalse(Optional.empty().isPresent());
 Assert.assertNull(Optional.empty().orNull());
 Assert.assertEquals("foo", Optional.empty().or("foo"));
 Assert.assertEquals("foo", Optional.empty().orElse("foo"));
}

代码示例来源：origin: org.apache.spark/spark-core_2.10

@Test
public void testAbsent() {
 Assert.assertFalse(Optional.absent().isPresent());
 Assert.assertNull(Optional.absent().orNull());
 Assert.assertEquals("foo", Optional.absent().or("foo"));
 Assert.assertEquals("foo", Optional.absent().orElse("foo"));
}

代码示例来源：origin: org.apache.spark/spark-core_2.11

@Test
public void testAbsent() {
 Assert.assertFalse(Optional.absent().isPresent());
 Assert.assertNull(Optional.absent().orNull());
 Assert.assertEquals("foo", Optional.absent().or("foo"));
 Assert.assertEquals("foo", Optional.absent().orElse("foo"));
}

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