| /* |
| * Copyright 2000-2013 JetBrains s.r.o. |
| * |
| * 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 com.intellij.psi.ref; |
| |
| import com.intellij.psi.*; |
| import com.intellij.util.IncorrectOperationException; |
| import com.intellij.util.ObjectUtils; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * @author peter |
| */ |
| public class AnnotationAttributeChildLink extends PsiChildLink<PsiAnnotation, PsiAnnotationMemberValue> { |
| private final String myAttributeName; |
| |
| public AnnotationAttributeChildLink(@NotNull @NonNls String attributeName) { |
| myAttributeName = attributeName; |
| } |
| |
| @NotNull |
| public String getAttributeName() { |
| return myAttributeName; |
| } |
| |
| @Override |
| public PsiAnnotationMemberValue findLinkedChild(@Nullable PsiAnnotation psiAnnotation) { |
| if (psiAnnotation == null) return null; |
| |
| return psiAnnotation.findDeclaredAttributeValue(myAttributeName); |
| } |
| |
| @Override |
| @NotNull |
| public PsiAnnotationMemberValue createChild(@NotNull PsiAnnotation psiAnnotation) throws IncorrectOperationException { |
| final PsiExpression nullValue = JavaPsiFacade.getElementFactory(psiAnnotation.getProject()).createExpressionFromText(PsiKeyword.NULL, null); |
| psiAnnotation.setDeclaredAttributeValue(myAttributeName, nullValue); |
| return ObjectUtils.assertNotNull(psiAnnotation.findDeclaredAttributeValue(myAttributeName)); |
| } |
| |
| @Override |
| public boolean equals(final Object o) { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| |
| final AnnotationAttributeChildLink link = (AnnotationAttributeChildLink)o; |
| |
| if (!myAttributeName.equals(link.myAttributeName)) return false; |
| |
| return true; |
| } |
| |
| @Override |
| public int hashCode() { |
| return myAttributeName.hashCode(); |
| } |
| } |