Java CrossOperator類代碼示例

import org.apache.flink.api.java.operators.CrossOperator; //導入依賴的package包/類
/**
 * Initiates a Cross transformation.
 *
 * <p>A Cross transformation combines the elements of two
 *   {@link DataSet DataSets} into one DataSet. It builds all pair combinations of elements of
 *   both DataSets, i.e., it builds a Cartesian product.
 *
 *
 * <p>The resulting {@link org.apache.flink.api.java.operators.CrossOperator.DefaultCross} wraps each pair of crossed elements into a {@link Tuple2}, with
 * the element of the first input being the first field of the tuple and the element of the
 * second input being the second field of the tuple.
 *
 *
 * <p>Call {@link org.apache.flink.api.java.operators.CrossOperator.DefaultCross#with(org.apache.flink.api.common.functions.CrossFunction)} to define a
 * {@link org.apache.flink.api.common.functions.CrossFunction} which is called for
 * each pair of crossed elements. The CrossFunction returns a exactly one element for each pair of input elements.
 *
 * @param other The other DataSet with which this DataSet is crossed.
 * @return A DefaultCross that returns a Tuple2 for each pair of crossed elements.
 *
 * @see org.apache.flink.api.java.operators.CrossOperator.DefaultCross
 * @see org.apache.flink.api.common.functions.CrossFunction
 * @see DataSet
 * @see Tuple2
 */
public <R> CrossOperator.DefaultCross<T, R> cross(DataSet<R> other) {
	return new CrossOperator.DefaultCross<>(this, other, CrossHint.OPTIMIZER_CHOOSES, Utils.getCallLocationName());
}
 

import org.apache.flink.api.java.operators.CrossOperator; //導入依賴的package包/類
/**
 * Initiates a Cross transformation.
 *
 * <p>A Cross transformation combines the elements of two
 *   {@link DataSet DataSets} into one DataSet. It builds all pair combinations of elements of
 *   both DataSets, i.e., it builds a Cartesian product.
 * This method also gives the hint to the optimizer that the second DataSet to cross is much
 *   smaller than the first one.
 *
 *
 * <p>The resulting {@link org.apache.flink.api.java.operators.CrossOperator.DefaultCross} wraps each pair of crossed elements into a {@link Tuple2}, with
 * the element of the first input being the first field of the tuple and the element of the
 * second input being the second field of the tuple.
 *
 *
 * <p>Call {@link org.apache.flink.api.java.operators.CrossOperator.DefaultCross#with(org.apache.flink.api.common.functions.CrossFunction)} to define a
 * {@link org.apache.flink.api.common.functions.CrossFunction} which is called for
 * each pair of crossed elements. The CrossFunction returns a exactly one element for each pair of input elements.
 *
 * @param other The other DataSet with which this DataSet is crossed.
 * @return A DefaultCross that returns a Tuple2 for each pair of crossed elements.
 *
 * @see org.apache.flink.api.java.operators.CrossOperator.DefaultCross
 * @see org.apache.flink.api.common.functions.CrossFunction
 * @see DataSet
 * @see Tuple2
 */
public <R> CrossOperator.DefaultCross<T, R> crossWithTiny(DataSet<R> other) {
	return new CrossOperator.DefaultCross<>(this, other, CrossHint.SECOND_IS_SMALL, Utils.getCallLocationName());
}
 

import org.apache.flink.api.java.operators.CrossOperator; //導入依賴的package包/類
/**
 * Initiates a Cross transformation.
 *
 * <p>A Cross transformation combines the elements of two
 *   {@link DataSet DataSets} into one DataSet. It builds all pair combinations of elements of
 *   both DataSets, i.e., it builds a Cartesian product.
 * This method also gives the hint to the optimizer that the second DataSet to cross is much
 *   larger than the first one.
 *
 *
 * <p>The resulting {@link org.apache.flink.api.java.operators.CrossOperator.DefaultCross} wraps each pair of crossed elements into a {@link Tuple2}, with
 * the element of the first input being the first field of the tuple and the element of the
 * second input being the second field of the tuple.
 *
 *
 * <p>Call {@link org.apache.flink.api.java.operators.CrossOperator.DefaultCross#with(org.apache.flink.api.common.functions.CrossFunction)} to define a
 * {@link org.apache.flink.api.common.functions.CrossFunction} which is called for
 * each pair of crossed elements. The CrossFunction returns a exactly one element for each pair of input elements.
 *
 * @param other The other DataSet with which this DataSet is crossed.
 * @return A DefaultCross that returns a Tuple2 for each pair of crossed elements.
 *
 * @see org.apache.flink.api.java.operators.CrossOperator.DefaultCross
 * @see org.apache.flink.api.common.functions.CrossFunction
 * @see DataSet
 * @see Tuple2
 */
public <R> CrossOperator.DefaultCross<T, R> crossWithHuge(DataSet<R> other) {
	return new CrossOperator.DefaultCross<>(this, other, CrossHint.FIRST_IS_SMALL, Utils.getCallLocationName());
}
 

import org.apache.flink.api.java.operators.CrossOperator; //導入依賴的package包/類
/**
 * Initiates a Cross transformation.<br/>
 * A Cross transformation combines the elements of two 
 *   {@link DataSet DataSets} into one DataSet. It builds all pair combinations of elements of 
 *   both DataSets, i.e., it builds a Cartesian product.
 * 
 * <p>
 * The resulting {@link org.apache.flink.api.java.operators.CrossOperator.DefaultCross} wraps each pair of crossed elements into a {@link Tuple2}, with 
 * the element of the first input being the first field of the tuple and the element of the 
 * second input being the second field of the tuple.
 * 
 * <p>
 * Call {@link org.apache.flink.api.java.operators.CrossOperator.DefaultCross#with(org.apache.flink.api.common.functions.CrossFunction)} to define a
 * {@link org.apache.flink.api.common.functions.CrossFunction} which is called for
 * each pair of crossed elements. The CrossFunction returns a exactly one element for each pair of input elements.</br>
 * 
 * @param other The other DataSet with which this DataSet is crossed. 
 * @return A DefaultCross that returns a Tuple2 for each pair of crossed elements.
 * 
 * @see org.apache.flink.api.java.operators.CrossOperator.DefaultCross
 * @see org.apache.flink.api.common.functions.CrossFunction
 * @see DataSet
 * @see Tuple2
 */
public <R> CrossOperator.DefaultCross<T, R> cross(DataSet<R> other) {
	return new CrossOperator.DefaultCross<T, R>(this, other);
}
 

import org.apache.flink.api.java.operators.CrossOperator; //導入依賴的package包/類
/**
 * Initiates a Cross transformation.<br/>
 * A Cross transformation combines the elements of two 
 *   {@link DataSet DataSets} into one DataSet. It builds all pair combinations of elements of 
 *   both DataSets, i.e., it builds a Cartesian product.
 * This method also gives the hint to the optimizer that the second DataSet to cross is much
 *   smaller than the first one.
 *   
 * <p>
 * The resulting {@link org.apache.flink.api.java.operators.CrossOperator.DefaultCross} wraps each pair of crossed elements into a {@link Tuple2}, with 
 * the element of the first input being the first field of the tuple and the element of the 
 * second input being the second field of the tuple.
 *   
 * <p>
 * Call {@link org.apache.flink.api.java.operators.CrossOperator.DefaultCross#with(org.apache.flink.api.common.functions.CrossFunction)} to define a
 * {@link org.apache.flink.api.common.functions.CrossFunction} which is called for
 * each pair of crossed elements. The CrossFunction returns a exactly one element for each pair of input elements.</br>
 * 
 * @param other The other DataSet with which this DataSet is crossed. 
 * @return A DefaultCross that returns a Tuple2 for each pair of crossed elements.
 * 
 * @see org.apache.flink.api.java.operators.CrossOperator.DefaultCross
 * @see org.apache.flink.api.common.functions.CrossFunction
 * @see DataSet
 * @see Tuple2
 */
public <R> CrossOperator.DefaultCross<T, R> crossWithTiny(DataSet<R> other) {
	return new CrossOperator.DefaultCross<T, R>(this, other);
}
 

import org.apache.flink.api.java.operators.CrossOperator; //導入依賴的package包/類
/**
 * Initiates a Cross transformation.<br/>
 * A Cross transformation combines the elements of two 
 *   {@link DataSet DataSets} into one DataSet. It builds all pair combinations of elements of 
 *   both DataSets, i.e., it builds a Cartesian product.
 * This method also gives the hint to the optimizer that the second DataSet to cross is much
 *   larger than the first one.
 *   
 * <p>
 * The resulting {@link org.apache.flink.api.java.operators.CrossOperator.DefaultCross} wraps each pair of crossed elements into a {@link Tuple2}, with 
 * the element of the first input being the first field of the tuple and the element of the 
 * second input being the second field of the tuple.
 *   
 * <p>
 * Call {@link org.apache.flink.api.java.operators.CrossOperator.DefaultCross#with(org.apache.flink.api.common.functions.CrossFunction)} to define a
 * {@link org.apache.flink.api.common.functions.CrossFunction} which is called for
 * each pair of crossed elements. The CrossFunction returns a exactly one element for each pair of input elements.</br>
 * 
 * @param other The other DataSet with which this DataSet is crossed. 
 * @return A DefaultCross that returns a Tuple2 for each pair of crossed elements.
 * 
 * @see org.apache.flink.api.java.operators.CrossOperator.DefaultCross
 * @see org.apache.flink.api.common.functions.CrossFunction
 * @see DataSet
 * @see Tuple2
 */
public <R> CrossOperator.DefaultCross<T, R> crossWithHuge(DataSet<R> other) {
	return new CrossOperator.DefaultCross<T, R>(this, other);
}