com.espertech.esper.epl.annotation

Class AnnotationUtil

java.lang.Object

com.espertech.esper.epl.annotation.AnnotationUtil

public class AnnotationUtil
extends Object

Utility to handle EPL statement annotations.

Constructor Summary

Constructors

Constructor and Description
AnnotationUtil()

Method Summary

Modifier and Type	Method and Description
static Annotation[]	compileAnnotations(List<AnnotationDesc> annotationSpec, EngineImportService engineImportService, String eplStatement) Compile annotation objects from descriptors.
static Annotation	findAnnotation(Annotation[] annotations, Class annotationClass)
static List<Annotation>	findAnnotations(Annotation[] annotations, Class annotationClass)
static String	getExpectSingleStringValue(String msgPrefix, List<AnnotationDesc> annotationsSameName)
static Object	getValue(AnnotationDesc desc)
static Map<String,List<AnnotationDesc>>	mapByNameLowerCase(List<AnnotationDesc> annotations)
static Annotation[]	mergeAnnotations(Annotation[] first, Annotation[] second)

Methods inherited from class java.lang.Object

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

Constructor Detail

AnnotationUtil

public AnnotationUtil()

Method Detail

mapByNameLowerCase

public static Map<String,List<AnnotationDesc>> mapByNameLowerCase(List<AnnotationDesc> annotations)

getValue

public static Object getValue(AnnotationDesc desc)

compileAnnotations

public static Annotation[] compileAnnotations(List<AnnotationDesc> annotationSpec,
                                              EngineImportService engineImportService,
                                              String eplStatement)

Compile annotation objects from descriptors.

Parameters:

annotationSpec - spec for annotations

engineImportService - engine imports

eplStatement - statement expression

Returns:

annotations

findAnnotation

public static Annotation findAnnotation(Annotation[] annotations,
                                        Class annotationClass)

findAnnotations

public static List<Annotation> findAnnotations(Annotation[] annotations,
                                               Class annotationClass)

mergeAnnotations

public static Annotation[] mergeAnnotations(Annotation[] first,
                                            Annotation[] second)

getExpectSingleStringValue

public static String getExpectSingleStringValue(String msgPrefix,
                                                List<AnnotationDesc> annotationsSameName)
                                         throws ExprValidationException

Throws:

ExprValidationException