Package org.apache.flink.table.operations

Class OperationUtils

java.lang.Object

org.apache.flink.table.operations.OperationUtils

@Internal
public class OperationUtils
extends Object

Helper methods for Operations.

Method Summary

Modifier and Type	Method	Description
static String	formatParameter(String name, Object value)
static String	formatPartitionSpec(Map<String,String> spec)
static String	formatPartitionSpec(org.apache.flink.table.catalog.CatalogPartitionSpec spec)
static String	formatProperties(Map<String,String> properties)
static String	formatSelectColumns(org.apache.flink.table.catalog.ResolvedSchema schema)
static <T extends Operation> String	formatWithChildren(String operationName, Map<String,Object> parameters, List<T> children, Function<T,String> childToString)	Formats a Tree of Operation in a unified way.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

formatWithChildren

public static <T extends Operation> String formatWithChildren(String operationName,
                                                              Map<String,Object> parameters,
                                                              List<T> children,
                                                              Function<T,String> childToString)

Formats a Tree of Operation in a unified way. It prints all the parameters and adds all children formatted and properly indented in the following lines.

The format is

 <operationName>: [(key1: [value1], key2: [v1, v2])]
     <child1>
          <child2>
     <child3>
 

Type Parameters:

T - The type of the child.

Parameters:

operationName - The operation name.

parameters - The operation's parameters.

children - The operation's children.

childToString - The function to convert child to String.

Returns:

String representation of the given operation.

formatSelectColumns

public static String formatSelectColumns(org.apache.flink.table.catalog.ResolvedSchema schema)

formatParameter

public static String formatParameter(String name,
                                     Object value)

formatProperties

public static String formatProperties(Map<String,String> properties)

formatPartitionSpec

public static String formatPartitionSpec(org.apache.flink.table.catalog.CatalogPartitionSpec spec)

formatPartitionSpec

public static String formatPartitionSpec(Map<String,String> spec)