本文整理了Java中org.apache.spark.api.java.Optional.absent()方法的一些代码示例，展示了Optional.absent()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.absent()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：absent

Optional.absent介绍

暂无

代码示例

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

@Test(expected = NullPointerException.class)
public void testAbsentGet() {
 Optional.absent().get();
}

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

@Test(expected = NullPointerException.class)
public void testAbsentGet() {
 Optional.absent().get();
}

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

@Test(expected = NullPointerException.class)
public void testAbsentGet() {
 Optional.absent().get();
}

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 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"));
}

代码示例来源：origin: uber/marmaray

public RDDWrapper(@NonNull final JavaRDD<T> data) {
  this.data = data;
  this.count = Optional.absent();
}

代码示例来源：origin: apache/tinkerpop

assert graphRDD.partitioner().get().equals(viewIncomingRDD.partitioner().get());
final JavaPairRDD<Object, ViewOutgoingPayload<M>> viewOutgoingRDD = ((null == viewIncomingRDD) ?
    graphRDD.mapValues(vertexWritable -> new Tuple2<>(vertexWritable, Optional.<ViewIncomingPayload<M>>absent())) : // first iteration will not have any views or messages

代码示例来源：origin: ai.grakn/grakn-kb

{assert graphRDD.partitioner().get().equals(viewIncomingRDD.partitioner().get());}
final JavaPairRDD<Object, ViewOutgoingPayload<M>> viewOutgoingRDD = ((null == viewIncomingRDD) ?
    graphRDD.mapValues(vertexWritable -> new Tuple2<>(vertexWritable, Optional.<ViewIncomingPayload<M>>absent())) : // first iteration will not have any views or messages

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

assert graphRDD.partitioner().get().equals(viewIncomingRDD.partitioner().get());
final JavaPairRDD<Object, ViewOutgoingPayload<M>> viewOutgoingRDD = ((null == viewIncomingRDD) ?
    graphRDD.mapValues(vertexWritable -> new Tuple2<>(vertexWritable, Optional.<ViewIncomingPayload<M>>absent())) : // first iteration will not have any views or messages