com.espertech.esper.epl.spec

Class MethodStreamSpec

java.lang.Object

com.espertech.esper.epl.spec.StreamSpecBase

com.espertech.esper.epl.spec.MethodStreamSpec

All Implemented Interfaces:

StreamSpec, StreamSpecCompiled, StreamSpecRaw, MetaDefItem, Serializable

public class MethodStreamSpec
extends StreamSpecBase
implements StreamSpecRaw, StreamSpecCompiled, MetaDefItem, Serializable

Specification object for historical data poll via database SQL statement.

See Also:

Serialized Form

Field Summary

Fields inherited from interface com.espertech.esper.epl.spec.StreamSpecCompiled

EMPTY_STREAM_ARRAY

Constructor Summary

Constructors

Constructor and Description
MethodStreamSpec(String optionalStreamName, ViewSpec[] viewSpecs, String ident, String className, String methodName, List<ExprNode> expressions, String eventTypeName) Ctor.

Method Summary

Modifier and Type	Method and Description
StreamSpecCompiled	compile(StatementContext context, Set<String> eventTypeReferences, boolean isInsertInto, Collection<Integer> assignedTypeNumberStack, boolean isJoin, boolean isContextDeclaration, boolean isOnTrigger, String optionalStreamName) Compiles a raw stream specification consisting event type information and filter expressions to an validated, optimized form for use with filter service
String	getClassName() Returns the class name.
String	getEventTypeName()
List<ExprNode>	getExpressions() Returns the parameter expressions.
String	getIdent() Returns the prefix (method) for the method invocation syntax.
String	getMethodName() Returns the method name.

Methods inherited from class com.espertech.esper.epl.spec.StreamSpecBase

getOptionalStreamName, getOptions, getViewSpecs

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.espertech.esper.epl.spec.StreamSpec

getOptionalStreamName, getOptions, getViewSpecs

Constructor Detail

MethodStreamSpec

public MethodStreamSpec(String optionalStreamName,
                        ViewSpec[] viewSpecs,
                        String ident,
                        String className,
                        String methodName,
                        List<ExprNode> expressions,
                        String eventTypeName)

Ctor.

Parameters:

optionalStreamName - is the stream name or null if none defined

viewSpecs - is an list of view specifications

ident - the prefix in the clause

className - the class name

methodName - the method name

expressions - the parameter expressions

eventTypeName - event type name if provided

Method Detail

getIdent

public String getIdent()

Returns the prefix (method) for the method invocation syntax.

Returns:

identifier

getClassName

public String getClassName()

Returns the class name.

Returns:

class name

getMethodName

public String getMethodName()

Returns the method name.

Returns:

method name

getEventTypeName

public String getEventTypeName()

getExpressions

public List<ExprNode> getExpressions()

Returns the parameter expressions.

Returns:

parameter expressions

compile

public StreamSpecCompiled compile(StatementContext context,
                                  Set<String> eventTypeReferences,
                                  boolean isInsertInto,
                                  Collection<Integer> assignedTypeNumberStack,
                                  boolean isJoin,
                                  boolean isContextDeclaration,
                                  boolean isOnTrigger,
                                  String optionalStreamName)
                           throws ExprValidationException

Description copied from interface: StreamSpecRaw

Compiles a raw stream specification consisting event type information and filter expressions to an validated, optimized form for use with filter service

Specified by:

compile in interface StreamSpecRaw

Parameters:

context - statement-level services

eventTypeReferences - event type names used by the statement

isInsertInto - true for insert-into

assignedTypeNumberStack - for assigning nested type numbers

isJoin - indicates whether a join or not a join

isContextDeclaration - indicates whether declared as part of the context declarations, if any

isOnTrigger - indicator for on-trigger

optionalStreamName - stream name

Returns:

compiled stream

Throws:

ExprValidationException - to indicate validation errors