com.espertech.esper.epl.core
Class OrderByProcessorFactoryFactory

java.lang.Object
  com.espertech.esper.epl.core.OrderByProcessorFactoryFactory

public class OrderByProcessorFactoryFactory
extends java.lang.Object

Factory for OrderByProcessor processors.

Constructor Summary

OrderByProcessorFactoryFactory()

Method Summary

static OrderByProcessorFactory

getProcessor(java.util.List<SelectClauseExprCompiledSpec> selectionList, ExprNode[] groupByNodes, java.util.List<OrderByItem> orderByList, RowLimitSpec rowLimitSpec, VariableService variableService, boolean isSortUsingCollator, java.lang.String optionalContextName) Returns processor for order-by clauses.

Methods inherited from class java.lang.Object

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

Constructor Detail

OrderByProcessorFactoryFactory

public OrderByProcessorFactoryFactory()

Method Detail

getProcessor

public static OrderByProcessorFactory getProcessor(java.util.List<SelectClauseExprCompiledSpec> selectionList,
                                                   ExprNode[] groupByNodes,
                                                   java.util.List<OrderByItem> orderByList,
                                                   RowLimitSpec rowLimitSpec,
                                                   VariableService variableService,
                                                   boolean isSortUsingCollator,
                                                   java.lang.String optionalContextName)
                                            throws ExprValidationException

Returns processor for order-by clauses.

Parameters:

selectionList - is a list of select expressions

groupByNodes - is a list of group-by expressions

orderByList - is a list of order-by expressions

rowLimitSpec - specification for row limit, or null if no row limit is defined

variableService - for retrieving variable state for use with row limiting

isSortUsingCollator - for string value sorting using compare or Collator

Returns:

ordering processor instance

Throws:

ExprValidationException - when validation of expressions fails