org.apache.phoenix.parse

Class DistinctCountParseNode

java.lang.Object

org.apache.phoenix.parse.ParseNode

org.apache.phoenix.parse.CompoundParseNode

org.apache.phoenix.parse.FunctionParseNode

org.apache.phoenix.parse.AggregateFunctionParseNode

org.apache.phoenix.parse.DelegateConstantToCountParseNode

org.apache.phoenix.parse.DistinctCountParseNode

public class DistinctCountParseNode
extends DelegateConstantToCountParseNode

Since:

1.2.1

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.phoenix.parse.FunctionParseNode

FunctionParseNode.Argument, FunctionParseNode.BuiltInFunction, FunctionParseNode.BuiltInFunctionArgInfo, FunctionParseNode.BuiltInFunctionInfo, FunctionParseNode.FunctionClassType

Constructor Summary

Constructors

Constructor and Description
DistinctCountParseNode(String name, List<ParseNode> children, FunctionParseNode.BuiltInFunctionInfo info)

Method Summary

Methods

Modifier and Type	Method and Description
FunctionExpression	create(List<Expression> children, StatementContext context) Entry point for parser to instantiate compiled representation of built-in function
void	toSQL(ColumnResolver resolver, StringBuilder buf)

Methods inherited from class org.apache.phoenix.parse.DelegateConstantToCountParseNode

getDelegateFunction

Methods inherited from class org.apache.phoenix.parse.AggregateFunctionParseNode

isStateless

Methods inherited from class org.apache.phoenix.parse.FunctionParseNode

accept, create, equals, evalToNullIfParamIsNull, getInfo, getName, hashCode, isAggregate, validate, validateFunctionArguement

Methods inherited from class org.apache.phoenix.parse.CompoundParseNode

getChildren

Methods inherited from class org.apache.phoenix.parse.ParseNode

getAlias, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DistinctCountParseNode

public DistinctCountParseNode(String name,
                      List<ParseNode> children,
                      FunctionParseNode.BuiltInFunctionInfo info)

Method Detail

create

public FunctionExpression create(List<Expression> children,
                        StatementContext context)
                          throws SQLException

Description copied from class: FunctionParseNode

Entry point for parser to instantiate compiled representation of built-in function

Specified by:

create in class DelegateConstantToCountParseNode

Parameters:

children - Compiled expressions for child nodes

context - Query context for accessing state shared across the processing of multiple clauses

Returns:

compiled representation of built-in function

Throws:

SQLException

toSQL

public void toSQL(ColumnResolver resolver,
         StringBuilder buf)

Overrides:

toSQL in class FunctionParseNode