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HV-589 Introducing UnconstrainedEntityMetaDataSingleton as a placehol…
…der for unconstrained types. This placeholder is used when BeanMetaDataManager#isConstrained is called. When retrieving an instance of BeanMetaData always a proper BeanMetaDataImpl instance is returned.
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98 changes: 98 additions & 0 deletions
98
...ibernate/validator/internal/metadata/aggregated/UnconstrainedEntityMetaDataSingleton.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,98 @@ | ||
| /* | ||
| * JBoss, Home of Professional Open Source | ||
| * Copyright 2009, Red Hat, Inc. and/or its affiliates, and individual contributors | ||
| * by the @authors tag. See the copyright.txt in the distribution for a | ||
| * full listing of individual contributors. | ||
| * | ||
| * 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 org.hibernate.validator.internal.metadata.aggregated; | ||
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| import java.util.List; | ||
| import java.util.Set; | ||
| import javax.validation.ConstraintDeclarationException; | ||
| import javax.validation.metadata.BeanDescriptor; | ||
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| import org.hibernate.validator.internal.metadata.core.MetaConstraint; | ||
| import org.hibernate.validator.internal.metadata.facets.Cascadable; | ||
| import org.hibernate.validator.internal.metadata.raw.ExecutableElement; | ||
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|
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| /** | ||
| * A dummy implementation of {@code BeanMetaData} used as a placeholder for unconstrained types. | ||
| * | ||
| * @author Hardy Ferentschik | ||
| */ | ||
| public final class UnconstrainedEntityMetaDataSingleton<T> implements BeanMetaData<T> { | ||
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| private static final UnconstrainedEntityMetaDataSingleton<?> singletonDummy = new UnconstrainedEntityMetaDataSingleton(); | ||
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| private UnconstrainedEntityMetaDataSingleton() { | ||
| } | ||
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| public static UnconstrainedEntityMetaDataSingleton<?> getSingleton() { | ||
| return singletonDummy; | ||
| } | ||
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| @Override | ||
| public Class<T> getBeanClass() { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public boolean hasConstraints() { | ||
| return false; | ||
| } | ||
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| @Override | ||
| public BeanDescriptor getBeanDescriptor() { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public PropertyMetaData getMetaDataFor(String propertyName) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public List<Class<?>> getDefaultGroupSequence(T beanState) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public boolean defaultGroupSequenceIsRedefined() { | ||
| return false; | ||
| } | ||
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| @Override | ||
| public Set<MetaConstraint<?>> getMetaConstraints() { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public Set<MetaConstraint<?>> getDirectMetaConstraints() { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public ExecutableMetaData getMetaDataFor(ExecutableElement method) throws ConstraintDeclarationException { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public List<Class<? super T>> getClassHierarchy() { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public Iterable<Cascadable> getCascadables() { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
| } |
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