本文整理匯總了Java中org.apache.flink.api.common.operators.base.PartitionOperatorBase.PartitionMethod.HASH屬性的典型用法代碼示例。如果您正苦於以下問題：Java PartitionMethod.HASH屬性的具體用法？Java PartitionMethod.HASH怎麽用？Java PartitionMethod.HASH使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類org.apache.flink.api.common.operators.base.PartitionOperatorBase.PartitionMethod的用法示例。
在下文中一共展示了PartitionMethod.HASH屬性的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: PartitionOperator
public PartitionOperator(DataSet<T> input, PartitionMethod pMethod, Keys<T> pKeys) {
super(input, input.getType());
if(pMethod == PartitionMethod.HASH && pKeys == null) {
throw new IllegalArgumentException("Hash Partitioning requires keys");
} else if(pMethod == PartitionMethod.RANGE) {
throw new UnsupportedOperationException("Range Partitioning not yet supported");
}
if(pKeys instanceof Keys.ExpressionKeys<?> && !(input.getType() instanceof CompositeType) ) {
throw new IllegalArgumentException("Hash Partitioning with key fields only possible on Composite-type DataSets");
}
this.pMethod = pMethod;
this.pKeys = pKeys;
}
示例2: partitionByHash
/**
* Hash-partitions a DataSet on the specified key fields.
*
* <p><b>Important:</b>This operation shuffles the whole DataSet over the network and can take significant amount of time.
*
* @param fields The field indexes on which the DataSet is hash-partitioned.
* @return The partitioned DataSet.
*/
public PartitionOperator<T> partitionByHash(int... fields) {
return new PartitionOperator<>(this, PartitionMethod.HASH, new Keys.ExpressionKeys<>(fields, getType()), Utils.getCallLocationName());
}
示例3: partitionByHash
/**
* Hash-partitions a DataSet on the specified key fields.
* <p>
* <b>Important:</b>This operation shuffles the whole DataSet over the network and can take significant amount of time.
*
* @param fields The field indexes on which the DataSet is hash-partitioned.
* @return The partitioned DataSet.
*/
public PartitionOperator<T> partitionByHash(int... fields) {
return new PartitionOperator<T>(this, PartitionMethod.HASH, new Keys.ExpressionKeys<T>(fields, getType(), false));
}