org.apache.flink.api.common.functions.RichFoldFunction Java Examples

The following examples show how to use org.apache.flink.api.common.functions.RichFoldFunction. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: WindowTranslationTest.java    From Flink-CEPplus with Apache License 2.0 6 votes vote down vote up 
/**
 * .fold() does not support RichFoldFunction, since the fold function is used internally
 * in a {@code FoldingState}.
 */
@Test(expected = UnsupportedOperationException.class)
public void testFoldWithRichFolderFails() throws Exception {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();

	DataStream<Tuple2<String, Integer>> source = env.fromElements(Tuple2.of("hello", 1), Tuple2.of("hello", 2));
	env.setStreamTimeCharacteristic(TimeCharacteristic.ProcessingTime);

	source
			.keyBy(0)
			.window(SlidingEventTimeWindows.of(Time.of(1, TimeUnit.SECONDS), Time.of(100, TimeUnit.MILLISECONDS)))
			.fold(new Tuple2<>("", 0), new RichFoldFunction<Tuple2<String, Integer>, Tuple2<String, Integer>>() {

				@Override
				public Tuple2<String, Integer> fold(Tuple2<String, Integer> value1,
						Tuple2<String, Integer> value2) throws Exception {
					return null;
				}
			});

	fail("exception was not thrown");
}
Example #2
Source File: AllWindowTranslationTest.java    From Flink-CEPplus with Apache License 2.0 6 votes vote down vote up 
/**
 * .fold() does not support RichFoldFunction, since the fold function is used internally
 * in a {@code FoldingState}.
 */
@Test(expected = UnsupportedOperationException.class)
public void testFoldWithRichFolderFails() throws Exception {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();

	DataStream<Tuple2<String, Integer>> source = env.fromElements(Tuple2.of("hello", 1), Tuple2.of("hello", 2));
	env.setStreamTimeCharacteristic(TimeCharacteristic.ProcessingTime);

	source
			.windowAll(SlidingEventTimeWindows.of(Time.of(1, TimeUnit.SECONDS), Time.of(100, TimeUnit.MILLISECONDS)))
			.fold(new Tuple2<>("", 0), new RichFoldFunction<Tuple2<String, Integer>, Tuple2<String, Integer>>() {
				private static final long serialVersionUID = -6448847205314995812L;

				@Override
				public Tuple2<String, Integer> fold(Tuple2<String, Integer> value1,
						Tuple2<String, Integer> value2) throws Exception {
					return null;
				}
			});

	fail("exception was not thrown");
}
Example #3
Source File: WindowTranslationTest.java    From flink with Apache License 2.0 6 votes vote down vote up 
/**
 * .fold() does not support RichFoldFunction, since the fold function is used internally
 * in a {@code FoldingState}.
 */
@Test(expected = UnsupportedOperationException.class)
public void testFoldWithRichFolderFails() throws Exception {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();

	DataStream<Tuple2<String, Integer>> source = env.fromElements(Tuple2.of("hello", 1), Tuple2.of("hello", 2));
	env.setStreamTimeCharacteristic(TimeCharacteristic.ProcessingTime);

	source
			.keyBy(0)
			.window(SlidingEventTimeWindows.of(Time.of(1, TimeUnit.SECONDS), Time.of(100, TimeUnit.MILLISECONDS)))
			.fold(new Tuple2<>("", 0), new RichFoldFunction<Tuple2<String, Integer>, Tuple2<String, Integer>>() {

				@Override
				public Tuple2<String, Integer> fold(Tuple2<String, Integer> value1,
						Tuple2<String, Integer> value2) throws Exception {
					return null;
				}
			});

	fail("exception was not thrown");
}
Example #4
Source File: AllWindowTranslationTest.java    From flink with Apache License 2.0 6 votes vote down vote up 
/**
 * .fold() does not support RichFoldFunction, since the fold function is used internally
 * in a {@code FoldingState}.
 */
@Test(expected = UnsupportedOperationException.class)
public void testFoldWithRichFolderFails() throws Exception {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();

	DataStream<Tuple2<String, Integer>> source = env.fromElements(Tuple2.of("hello", 1), Tuple2.of("hello", 2));
	env.setStreamTimeCharacteristic(TimeCharacteristic.ProcessingTime);

	source
			.windowAll(SlidingEventTimeWindows.of(Time.of(1, TimeUnit.SECONDS), Time.of(100, TimeUnit.MILLISECONDS)))
			.fold(new Tuple2<>("", 0), new RichFoldFunction<Tuple2<String, Integer>, Tuple2<String, Integer>>() {
				private static final long serialVersionUID = -6448847205314995812L;

				@Override
				public Tuple2<String, Integer> fold(Tuple2<String, Integer> value1,
						Tuple2<String, Integer> value2) throws Exception {
					return null;
				}
			});

	fail("exception was not thrown");
}
Example #5
Source File: WindowTranslationTest.java    From flink with Apache License 2.0 6 votes vote down vote up 
/**
 * .fold() does not support RichFoldFunction, since the fold function is used internally
 * in a {@code FoldingState}.
 */
@Test(expected = UnsupportedOperationException.class)
public void testFoldWithRichFolderFails() throws Exception {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();

	DataStream<Tuple2<String, Integer>> source = env.fromElements(Tuple2.of("hello", 1), Tuple2.of("hello", 2));
	env.setStreamTimeCharacteristic(TimeCharacteristic.ProcessingTime);

	source
			.keyBy(0)
			.window(SlidingEventTimeWindows.of(Time.of(1, TimeUnit.SECONDS), Time.of(100, TimeUnit.MILLISECONDS)))
			.fold(new Tuple2<>("", 0), new RichFoldFunction<Tuple2<String, Integer>, Tuple2<String, Integer>>() {

				@Override
				public Tuple2<String, Integer> fold(Tuple2<String, Integer> value1,
						Tuple2<String, Integer> value2) throws Exception {
					return null;
				}
			});

	fail("exception was not thrown");
}
Example #6
Source File: AllWindowTranslationTest.java    From flink with Apache License 2.0 6 votes vote down vote up 
/**
 * .fold() does not support RichFoldFunction, since the fold function is used internally
 * in a {@code FoldingState}.
 */
@Test(expected = UnsupportedOperationException.class)
public void testFoldWithRichFolderFails() throws Exception {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();

	DataStream<Tuple2<String, Integer>> source = env.fromElements(Tuple2.of("hello", 1), Tuple2.of("hello", 2));
	env.setStreamTimeCharacteristic(TimeCharacteristic.ProcessingTime);

	source
			.windowAll(SlidingEventTimeWindows.of(Time.of(1, TimeUnit.SECONDS), Time.of(100, TimeUnit.MILLISECONDS)))
			.fold(new Tuple2<>("", 0), new RichFoldFunction<Tuple2<String, Integer>, Tuple2<String, Integer>>() {
				private static final long serialVersionUID = -6448847205314995812L;

				@Override
				public Tuple2<String, Integer> fold(Tuple2<String, Integer> value1,
						Tuple2<String, Integer> value2) throws Exception {
					return null;
				}
			});

	fail("exception was not thrown");
}