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• Annotations.java

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com.facebook.presto.jdbc.internal.jackson.databind.util.Annotations Maven / Gradle / Ivy

package com.facebook.presto.jdbc.internal.jackson.databind.util;

import java.lang.annotation.Annotation;

/**
 * Interface that defines interface for accessing contents of a
 * collection of annotations. This is needed when introspecting
 * annotation-based features from different kinds of things, not
 * just objects that Java Reflection interface exposes.
 *

 * Standard mutable implementation is {@link com.facebook.presto.jdbc.internal.jackson.databind.introspect.AnnotationMap}
 */
public interface Annotations
{
    /**
     * Main access method used to find value for given annotation.
     */
    public  A get(Class cls);

    /**
     * @since 2.9
     */
    public boolean has(Class cls);

    /**
     * @since 2.9
     */
    public boolean hasOneOf(Class[] annoClasses);

    /**
     * Returns number of annotation entries in this collection.
     */
    public int size();
}