yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/AbstractEffectiveMustConstraintAwareDataSchemaNode.java

   1 /*
   2  * Copyright (c) 2019 PANTHEON.tech, s.r.o. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.yangtools.yang.parser.rfc7950.stmt;
   9
  10 import com.google.common.collect.ImmutableSet;
  11 import java.lang.invoke.MethodHandles;
  12 import java.lang.invoke.VarHandle;
  13 import org.opendaylight.yangtools.yang.common.QName;
  14 import org.opendaylight.yangtools.yang.model.api.MustConstraintAware;
  15 import org.opendaylight.yangtools.yang.model.api.MustDefinition;
  16 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
  17 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  18
  19 @Deprecated(forRemoval = true)
  20 public abstract class AbstractEffectiveMustConstraintAwareDataSchemaNode<D extends DeclaredStatement<QName>>
  21         extends AbstractEffectiveDataSchemaNode<D> implements MustConstraintAware {
  22     private static final VarHandle MUST_CONSTRAINTS;
  23
  24     static {
  25         try {
  26             MUST_CONSTRAINTS = MethodHandles.lookup().findVarHandle(
  27                 AbstractEffectiveMustConstraintAwareDataSchemaNode.class, "mustConstraints", ImmutableSet.class);
  28         } catch (NoSuchFieldException | IllegalAccessException e) {
  29             throw new ExceptionInInitializerError(e);
  30         }
  31     }
  32
  33     @SuppressWarnings("unused")
  34     private volatile ImmutableSet<MustDefinition> mustConstraints;
  35
  36     protected AbstractEffectiveMustConstraintAwareDataSchemaNode(final StmtContext<QName, D, ?> ctx) {
  37         super(ctx);
  38     }
  39
  40     @Override
  41     public final ImmutableSet<MustDefinition> getMustConstraints() {
  42         return derivedSet(MUST_CONSTRAINTS, MustDefinition.class);
  43     }
  44 }