本文整理汇总了Java中org.apache.flink.api.java.DataSet.minBy方法的典型用法代码示例。如果您正苦于以下问题：Java DataSet.minBy方法的具体用法？Java DataSet.minBy怎么用？Java DataSet.minBy使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.flink.api.java.DataSet的用法示例。
在下文中一共展示了DataSet.minBy方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: testMinByKeyFieldsDataset
import org.apache.flink.api.java.DataSet; //导入方法依赖的package包/类
/**
* This test validates that no exceptions is thrown when an empty dataset
* calls minBy().
*/
@Test
public void testMinByKeyFieldsDataset() {
final ExecutionEnvironment env = ExecutionEnvironment
.getExecutionEnvironment();
DataSet<Tuple5<Integer, Long, String, Long, Integer>> tupleDs = env
.fromCollection(emptyTupleData, tupleTypeInfo);
// should work
try {
tupleDs.minBy(4, 0, 1, 2, 3);
} catch (Exception e) {
Assert.fail();
}
}
示例2: testCustomKeyFieldsDataset
import org.apache.flink.api.java.DataSet; //导入方法依赖的package包/类
/**
* This test validates that an InvalidProgramException is thrown when minBy
* is used on a custom data type.
*/
@Test(expected = InvalidProgramException.class)
public void testCustomKeyFieldsDataset() {
final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
this.customTypeData.add(new CustomType());
DataSet<CustomType> customDs = env.fromCollection(customTypeData);
// should not work: groups on custom type
customDs.minBy(0);
}
示例3: testOutOfTupleBoundsDataset1
import org.apache.flink.api.java.DataSet; //导入方法依赖的package包/类
/**
* This test validates that an index which is out of bounds throws an
* IndexOutOfBoundsException.
*/
@Test(expected = IndexOutOfBoundsException.class)
public void testOutOfTupleBoundsDataset1() {
final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple5<Integer, Long, String, Long, Integer>> tupleDs = env.fromCollection(emptyTupleData, tupleTypeInfo);
// should not work, key out of tuple bounds
tupleDs.minBy(5);
}
示例4: testOutOfTupleBoundsDataset2
import org.apache.flink.api.java.DataSet; //导入方法依赖的package包/类
/**
* This test validates that an index which is out of bounds throws an
* IndexOutOfBoundsException.
*/
@Test(expected = IndexOutOfBoundsException.class)
public void testOutOfTupleBoundsDataset2() {
final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple5<Integer, Long, String, Long, Integer>> tupleDs = env.fromCollection(emptyTupleData, tupleTypeInfo);
// should not work, key out of tuple bounds
tupleDs.minBy(-1);
}
示例5: testOutOfTupleBoundsDataset3
import org.apache.flink.api.java.DataSet; //导入方法依赖的package包/类
/**
* This test validates that an index which is out of bounds throws an
* IndexOutOfBoundsException.
*/
@Test(expected = IndexOutOfBoundsException.class)
public void testOutOfTupleBoundsDataset3() {
final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple5<Integer, Long, String, Long, Integer>> tupleDs = env.fromCollection(emptyTupleData, tupleTypeInfo);
// should not work, key out of tuple bounds
tupleDs.minBy(1, 2, 3, 4, -1);
}