/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.flink.api.java.operators;
import org.apache.flink.annotation.Internal;
import org.apache.flink.annotation.Public;
import org.apache.flink.annotation.PublicEvolving;
import org.apache.flink.api.common.InvalidProgramException;
import org.apache.flink.api.common.functions.MapFunction;
import org.apache.flink.api.common.operators.Operator;
import org.apache.flink.api.common.typeinfo.TypeInformation;
import org.apache.flink.api.common.typeutils.CompositeType;
import org.apache.flink.api.java.DataSet;
import org.apache.flink.api.java.functions.SemanticPropUtil;
import org.apache.flink.api.java.operators.translation.PlanProjectOperator;
import org.apache.flink.api.java.tuple.Tuple;
import org.apache.flink.api.java.tuple.Tuple1;
import org.apache.flink.api.java.tuple.Tuple10;
import org.apache.flink.api.java.tuple.Tuple11;
import org.apache.flink.api.java.tuple.Tuple12;
import org.apache.flink.api.java.tuple.Tuple13;
import org.apache.flink.api.java.tuple.Tuple14;
import org.apache.flink.api.java.tuple.Tuple15;
import org.apache.flink.api.java.tuple.Tuple16;
import org.apache.flink.api.java.tuple.Tuple17;
import org.apache.flink.api.java.tuple.Tuple18;
import org.apache.flink.api.java.tuple.Tuple19;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.api.java.tuple.Tuple20;
import org.apache.flink.api.java.tuple.Tuple21;
import org.apache.flink.api.java.tuple.Tuple22;
import org.apache.flink.api.java.tuple.Tuple23;
import org.apache.flink.api.java.tuple.Tuple24;
import org.apache.flink.api.java.tuple.Tuple25;
import org.apache.flink.api.java.tuple.Tuple3;
import org.apache.flink.api.java.tuple.Tuple4;
import org.apache.flink.api.java.tuple.Tuple5;
import org.apache.flink.api.java.tuple.Tuple6;
import org.apache.flink.api.java.tuple.Tuple7;
import org.apache.flink.api.java.tuple.Tuple8;
import org.apache.flink.api.java.tuple.Tuple9;
import org.apache.flink.api.java.typeutils.TupleTypeInfo;
import org.apache.flink.util.Preconditions;
import java.util.Arrays;
/**
* This operator represents the application of a projection operation on a data set, and the
* result data set produced by the function.
*
* @param <IN> The type of the data set projected by the operator.
* @param <OUT> The type of data set that is the result of the projection.
*/
@Public
public class ProjectOperator<IN, OUT extends Tuple>
extends SingleInputOperator<IN, OUT, ProjectOperator<IN, OUT>> {
protected final int[] fields;
public ProjectOperator(DataSet<IN> input, int[] fields, TupleTypeInfo<OUT> returnType) {
super(input, returnType);
this.fields = fields;
}
@Override
protected org.apache.flink.api.common.operators.base.MapOperatorBase<IN, OUT, MapFunction<IN, OUT>> translateToDataFlow(Operator<IN> input) {
String name = getName() != null ? getName() : "Projection " + Arrays.toString(fields);
// create operator
PlanProjectOperator<IN, OUT> ppo = new PlanProjectOperator<IN, OUT>(fields, name, getInputType(), getResultType(), context.getConfig());
// set input
ppo.setInput(input);
// set parallelism
ppo.setParallelism(this.getParallelism());
ppo.setSemanticProperties(SemanticPropUtil.createProjectionPropertiesSingle(fields, (CompositeType<?>) getInputType()));
return ppo;
}
/**
* @deprecated Deprecated method only kept for compatibility.
*/
@SuppressWarnings("unchecked")
@Deprecated
@PublicEvolving
public <R extends Tuple> ProjectOperator<IN, R> types(Class<?>... types) {
TupleTypeInfo<R> typeInfo = (TupleTypeInfo<R>) this.getResultType();
if (types.length != typeInfo.getArity()) {
throw new InvalidProgramException("Provided types do not match projection.");
}
for (int i = 0; i < types.length; i++) {
Class<?> typeClass = types[i];
if (!typeClass.equals(typeInfo.getTypeAt(i).getTypeClass())) {
throw new InvalidProgramException("Provided type " + typeClass.getSimpleName() + " at position " + i + " does not match projection");
}
}
return (ProjectOperator<IN, R>) this;
}
/**
* A projection of {@link DataSet}.
*
* @param <T>
*/
@Internal
public static class Projection<T> {
private final DataSet<T> ds;
private int[] fieldIndexes;
public Projection(DataSet<T> ds, int[] fieldIndexes) {
if (!(ds.getType() instanceof TupleTypeInfo)) {
throw new UnsupportedOperationException("project() can only be applied to DataSets of Tuples.");
}
if (fieldIndexes.length == 0) {
throw new IllegalArgumentException("project() needs to select at least one (1) field.");
} else if (fieldIndexes.length > Tuple.MAX_ARITY - 1) {
throw new IllegalArgumentException(
"project() may select only up to (" + (Tuple.MAX_ARITY - 1) + ") fields.");
}
int maxFieldIndex = ds.getType().getArity();
for (int fieldIndexe : fieldIndexes) {
Preconditions.checkElementIndex(fieldIndexe, maxFieldIndex);
}
this.ds = ds;
this.fieldIndexes = fieldIndexes;
}
// --------------------------------------------------------------------------------------------
// The following lines are generated.
// --------------------------------------------------------------------------------------------
// BEGIN_OF_TUPLE_DEPENDENT_CODE
// GENERATED FROM org.apache.flink.api.java.tuple.TupleGenerator.
/**
* Chooses a projectTupleX according to the length of
* {@link org.apache.flink.api.java.operators.ProjectOperator.Projection#fieldIndexes}.
*
* @return The projected DataSet.
* @see org.apache.flink.api.java.operators.ProjectOperator.Projection
*/
@SuppressWarnings("unchecked")
public <OUT extends Tuple> ProjectOperator<T, OUT> projectTupleX() {
ProjectOperator<T, OUT> projOperator;
switch (fieldIndexes.length) {
case 1: projOperator = (ProjectOperator<T, OUT>) projectTuple1(); break;
case 2: projOperator = (ProjectOperator<T, OUT>) projectTuple2(); break;
case 3: projOperator = (ProjectOperator<T, OUT>) projectTuple3(); break;
case 4: projOperator = (ProjectOperator<T, OUT>) projectTuple4(); break;
case 5: projOperator = (ProjectOperator<T, OUT>) projectTuple5(); break;
case 6: projOperator = (ProjectOperator<T, OUT>) projectTuple6(); break;
case 7: projOperator = (ProjectOperator<T, OUT>) projectTuple7(); break;
case 8: projOperator = (ProjectOperator<T, OUT>) projectTuple8(); break;
case 9: projOperator = (ProjectOperator<T, OUT>) projectTuple9(); break;
case 10: projOperator = (ProjectOperator<T, OUT>) projectTuple10(); break;
case 11: projOperator = (ProjectOperator<T, OUT>) projectTuple11(); break;
case 12: projOperator = (ProjectOperator<T, OUT>) projectTuple12(); break;
case 13: projOperator = (ProjectOperator<T, OUT>) projectTuple13(); break;
case 14: projOperator = (ProjectOperator<T, OUT>) projectTuple14(); break;
case 15: projOperator = (ProjectOperator<T, OUT>) projectTuple15(); break;
case 16: projOperator = (ProjectOperator<T, OUT>) projectTuple16(); break;
case 17: projOperator = (ProjectOperator<T, OUT>) projectTuple17(); break;
case 18: projOperator = (ProjectOperator<T, OUT>) projectTuple18(); break;
case 19: projOperator = (ProjectOperator<T, OUT>) projectTuple19(); break;
case 20: projOperator = (ProjectOperator<T, OUT>) projectTuple20(); break;
case 21: projOperator = (ProjectOperator<T, OUT>) projectTuple21(); break;
case 22: projOperator = (ProjectOperator<T, OUT>) projectTuple22(); break;
case 23: projOperator = (ProjectOperator<T, OUT>) projectTuple23(); break;
case 24: projOperator = (ProjectOperator<T, OUT>) projectTuple24(); break;
case 25: projOperator = (ProjectOperator<T, OUT>) projectTuple25(); break;
default: throw new IllegalStateException("Excessive arity in tuple.");
}
return projOperator;
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0> ProjectOperator<T, Tuple1<T0>> projectTuple1() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple1<T0>> tType = new TupleTypeInfo<Tuple1<T0>>(fTypes);
return new ProjectOperator<T, Tuple1<T0>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1> ProjectOperator<T, Tuple2<T0, T1>> projectTuple2() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple2<T0, T1>> tType = new TupleTypeInfo<Tuple2<T0, T1>>(fTypes);
return new ProjectOperator<T, Tuple2<T0, T1>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2> ProjectOperator<T, Tuple3<T0, T1, T2>> projectTuple3() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple3<T0, T1, T2>> tType = new TupleTypeInfo<Tuple3<T0, T1, T2>>(fTypes);
return new ProjectOperator<T, Tuple3<T0, T1, T2>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3> ProjectOperator<T, Tuple4<T0, T1, T2, T3>> projectTuple4() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple4<T0, T1, T2, T3>> tType = new TupleTypeInfo<Tuple4<T0, T1, T2, T3>>(fTypes);
return new ProjectOperator<T, Tuple4<T0, T1, T2, T3>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4> ProjectOperator<T, Tuple5<T0, T1, T2, T3, T4>> projectTuple5() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple5<T0, T1, T2, T3, T4>> tType = new TupleTypeInfo<Tuple5<T0, T1, T2, T3, T4>>(fTypes);
return new ProjectOperator<T, Tuple5<T0, T1, T2, T3, T4>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5> ProjectOperator<T, Tuple6<T0, T1, T2, T3, T4, T5>> projectTuple6() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple6<T0, T1, T2, T3, T4, T5>> tType = new TupleTypeInfo<Tuple6<T0, T1, T2, T3, T4, T5>>(fTypes);
return new ProjectOperator<T, Tuple6<T0, T1, T2, T3, T4, T5>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6> ProjectOperator<T, Tuple7<T0, T1, T2, T3, T4, T5, T6>> projectTuple7() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple7<T0, T1, T2, T3, T4, T5, T6>> tType = new TupleTypeInfo<Tuple7<T0, T1, T2, T3, T4, T5, T6>>(fTypes);
return new ProjectOperator<T, Tuple7<T0, T1, T2, T3, T4, T5, T6>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7> ProjectOperator<T, Tuple8<T0, T1, T2, T3, T4, T5, T6, T7>> projectTuple8() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple8<T0, T1, T2, T3, T4, T5, T6, T7>> tType = new TupleTypeInfo<Tuple8<T0, T1, T2, T3, T4, T5, T6, T7>>(fTypes);
return new ProjectOperator<T, Tuple8<T0, T1, T2, T3, T4, T5, T6, T7>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8> ProjectOperator<T, Tuple9<T0, T1, T2, T3, T4, T5, T6, T7, T8>> projectTuple9() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple9<T0, T1, T2, T3, T4, T5, T6, T7, T8>> tType = new TupleTypeInfo<Tuple9<T0, T1, T2, T3, T4, T5, T6, T7, T8>>(fTypes);
return new ProjectOperator<T, Tuple9<T0, T1, T2, T3, T4, T5, T6, T7, T8>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9> ProjectOperator<T, Tuple10<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9>> projectTuple10() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple10<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9>> tType = new TupleTypeInfo<Tuple10<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9>>(fTypes);
return new ProjectOperator<T, Tuple10<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> ProjectOperator<T, Tuple11<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>> projectTuple11() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple11<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>> tType = new TupleTypeInfo<Tuple11<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>>(fTypes);
return new ProjectOperator<T, Tuple11<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> ProjectOperator<T, Tuple12<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11>> projectTuple12() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple12<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11>> tType = new TupleTypeInfo<Tuple12<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11>>(fTypes);
return new ProjectOperator<T, Tuple12<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> ProjectOperator<T, Tuple13<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>> projectTuple13() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple13<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>> tType = new TupleTypeInfo<Tuple13<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>>(fTypes);
return new ProjectOperator<T, Tuple13<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13> ProjectOperator<T, Tuple14<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13>> projectTuple14() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple14<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13>> tType = new TupleTypeInfo<Tuple14<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13>>(fTypes);
return new ProjectOperator<T, Tuple14<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14> ProjectOperator<T, Tuple15<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14>> projectTuple15() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple15<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14>> tType = new TupleTypeInfo<Tuple15<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14>>(fTypes);
return new ProjectOperator<T, Tuple15<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15> ProjectOperator<T, Tuple16<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15>> projectTuple16() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple16<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15>> tType = new TupleTypeInfo<Tuple16<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15>>(fTypes);
return new ProjectOperator<T, Tuple16<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16> ProjectOperator<T, Tuple17<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16>> projectTuple17() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple17<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16>> tType = new TupleTypeInfo<Tuple17<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16>>(fTypes);
return new ProjectOperator<T, Tuple17<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17> ProjectOperator<T, Tuple18<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17>> projectTuple18() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple18<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17>> tType = new TupleTypeInfo<Tuple18<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17>>(fTypes);
return new ProjectOperator<T, Tuple18<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18> ProjectOperator<T, Tuple19<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18>> projectTuple19() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple19<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18>> tType = new TupleTypeInfo<Tuple19<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18>>(fTypes);
return new ProjectOperator<T, Tuple19<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19> ProjectOperator<T, Tuple20<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19>> projectTuple20() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple20<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19>> tType = new TupleTypeInfo<Tuple20<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19>>(fTypes);
return new ProjectOperator<T, Tuple20<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20> ProjectOperator<T, Tuple21<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20>> projectTuple21() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple21<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20>> tType = new TupleTypeInfo<Tuple21<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20>>(fTypes);
return new ProjectOperator<T, Tuple21<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21> ProjectOperator<T, Tuple22<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21>> projectTuple22() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple22<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21>> tType = new TupleTypeInfo<Tuple22<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21>>(fTypes);
return new ProjectOperator<T, Tuple22<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22> ProjectOperator<T, Tuple23<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22>> projectTuple23() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple23<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22>> tType = new TupleTypeInfo<Tuple23<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22>>(fTypes);
return new ProjectOperator<T, Tuple23<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23> ProjectOperator<T, Tuple24<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23>> projectTuple24() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple24<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23>> tType = new TupleTypeInfo<Tuple24<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23>>(fTypes);
return new ProjectOperator<T, Tuple24<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23>>(this.ds, this.fieldIndexes, tType);
}
/**
* Projects a {@link Tuple} {@link DataSet} to the previously selected fields.
*
* @return The projected DataSet.
* @see Tuple
* @see DataSet
*/
public <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24> ProjectOperator<T, Tuple25<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24>> projectTuple25() {
TypeInformation<?>[] fTypes = extractFieldTypes(fieldIndexes, ds.getType());
TupleTypeInfo<Tuple25<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24>> tType = new TupleTypeInfo<Tuple25<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24>>(fTypes);
return new ProjectOperator<T, Tuple25<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24>>(this.ds, this.fieldIndexes, tType);
}
// END_OF_TUPLE_DEPENDENT_CODE
// -----------------------------------------------------------------------------------------
private TypeInformation<?>[] extractFieldTypes(int[] fields, TypeInformation<?> inType) {
TupleTypeInfo<?> inTupleType = (TupleTypeInfo<?>) inType;
TypeInformation<?>[] fieldTypes = new TypeInformation[fields.length];
for (int i = 0; i < fields.length; i++) {
fieldTypes[i] = inTupleType.getTypeAt(fields[i]);
}
return fieldTypes;
}
}
}
