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/*
 * Copyright 2017-2019 original authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.micronaut.scheduling.instrument;

import javax.annotation.Nullable;

/**
 * An factory interface for invocation instrumentation, factory method decides if instrumentation is needed.
 *
 * @author Denis Stepanov
 * @author graemerocher
 * @since 1.3
 */
public interface InvocationInstrumenterFactory {

    /**
     * An optional invocation instrumentation.
     * @return An invocation instrumentation or null if non exists for this factory.
     */
    @Nullable
    InvocationInstrumenter newInvocationInstrumenter();

}