com.espertech.esper.plugin

Class PlugInAggregationMultiFunctionValidationContext

java.lang.Object

com.espertech.esper.plugin.PlugInAggregationMultiFunctionValidationContext

public class PlugInAggregationMultiFunctionValidationContext
extends Object

Context for use with PlugInAggregationMultiFunctionFactory provides information about an aggregation function at the time of validation.

At validation time the event type information, parameter expressions and other statement-specific services are available.

Constructor Summary

Constructors

Constructor and Description
PlugInAggregationMultiFunctionValidationContext(String functionName, EventType[] eventTypes, ExprNode[] parameterExpressions, String engineURI, String statementName, ExprValidationContext validationContext, ConfigurationPlugInAggregationMultiFunction config, TableMetadataColumnAggregation optionalTableColumnAccessed, ExprNode[] allParameterExpressions)

Method Summary

Modifier and Type	Method and Description
ExprNode[]	getAllParameterExpressions() Returns positional and non-positional parameters.
ConfigurationPlugInAggregationMultiFunction	getConfig() Returns the original configuration object for the aggregation multi-function
String	getEngineURI() Returns the engine URI.
EventType[]	getEventTypes() Returns the event types of all events in the select clause
String	getFunctionName() Returns the aggregation function name
LinkedHashMap<String,List<ExprNode>>	getNamedParameters() Gets the named parameters as a list
TableMetadataColumnAggregation	getOptionalTableColumnAccessed()
ExprNode[]	getParameterExpressions() Returns positional parameters expressions to this aggregation function.
String	getStatementName() Returns the statement name.
ExprValidationContext	getValidationContext() Returns additional validation contextual services.

Methods inherited from class java.lang.Object

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

Constructor Detail

PlugInAggregationMultiFunctionValidationContext

public PlugInAggregationMultiFunctionValidationContext(String functionName,
                                                       EventType[] eventTypes,
                                                       ExprNode[] parameterExpressions,
                                                       String engineURI,
                                                       String statementName,
                                                       ExprValidationContext validationContext,
                                                       ConfigurationPlugInAggregationMultiFunction config,
                                                       TableMetadataColumnAggregation optionalTableColumnAccessed,
                                                       ExprNode[] allParameterExpressions)

Method Detail

getFunctionName

public String getFunctionName()

Returns the aggregation function name

Returns:

aggregation function name

getEventTypes

public EventType[] getEventTypes()

Returns the event types of all events in the select clause

Returns:

types

getParameterExpressions

public ExprNode[] getParameterExpressions()

Returns positional parameters expressions to this aggregation function. Use getAllParameterExpressions() for a list of all parameters including non-positional parameters.

Returns:

positional parameter expressions

getEngineURI

public String getEngineURI()

Returns the engine URI.

Returns:

engine URI.

getStatementName

public String getStatementName()

Returns the statement name.

Returns:

statement name

getValidationContext

public ExprValidationContext getValidationContext()

Returns additional validation contextual services.

Returns:

validation context

getConfig

public ConfigurationPlugInAggregationMultiFunction getConfig()

Returns the original configuration object for the aggregation multi-function

Returns:

config

getOptionalTableColumnAccessed

public TableMetadataColumnAggregation getOptionalTableColumnAccessed()

getAllParameterExpressions

public ExprNode[] getAllParameterExpressions()

Returns positional and non-positional parameters.

Returns:

all parameters

getNamedParameters

public LinkedHashMap<String,List<ExprNode>> getNamedParameters()

Gets the named parameters as a list

Returns:

named params