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PLANNER-352 Add MethodMemberAccessor + delete ReadMethodAccessor hier…
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118 changes: 118 additions & 0 deletions
118
...re/src/main/java/org/optaplanner/core/impl/domain/common/member/MethodMemberAccessor.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| /* | ||
| * Copyright 2015 JBoss Inc | ||
| * | ||
| * 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. | ||
| */ | ||
|
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| package org.optaplanner.core.impl.domain.common.member; | ||
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| import java.lang.annotation.Annotation; | ||
| import java.lang.reflect.InvocationTargetException; | ||
| import java.lang.reflect.Method; | ||
| import java.lang.reflect.Type; | ||
| import java.util.Arrays; | ||
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| import org.optaplanner.core.impl.domain.common.ReflectionHelper; | ||
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| /** | ||
| * A {@link MemberAccessor} based on a single read {@link Method}. | ||
| * Do not confuse with {@link BeanPropertyMemberAccessor} which is richer. | ||
| */ | ||
| public final class MethodMemberAccessor implements MemberAccessor { | ||
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| private final Class<?> returnType; | ||
| private final String methodName; | ||
| private final Method readMethod; | ||
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| public MethodMemberAccessor(Method readMethod) { | ||
| this.readMethod = readMethod; | ||
| readMethod.setAccessible(true); // Performance hack by avoiding security checks | ||
| returnType = readMethod.getReturnType(); | ||
| methodName = readMethod.getName(); | ||
| if (readMethod.getParameterTypes().length != 0) { | ||
| throw new IllegalArgumentException("The readMethod (" + readMethod + ") must not have any parameters (" | ||
| + Arrays.toString(readMethod.getParameterTypes()) + ")."); | ||
| } | ||
| if (readMethod.getReturnType() == void.class) { | ||
| throw new IllegalArgumentException("The readMethod (" + readMethod + ") must have a return type (" | ||
| + readMethod.getReturnType() + ")."); | ||
| } | ||
| } | ||
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| public String getName() { | ||
| return methodName; | ||
| } | ||
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| @Override | ||
| public Class<?> getType() { | ||
| return returnType; | ||
| } | ||
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| @Override | ||
| public Type getGenericType() { | ||
| return readMethod.getGenericReturnType(); | ||
| } | ||
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| public Object executeGetter(Object bean) { | ||
| try { | ||
| return readMethod.invoke(bean); | ||
| } catch (IllegalAccessException e) { | ||
| throw new IllegalStateException("Cannot call property (" + methodName | ||
| + ") getterMethod (" + readMethod + ") on bean of class (" + bean.getClass() + ").", e); | ||
| } catch (InvocationTargetException e) { | ||
| throw new IllegalStateException("The property (" + methodName | ||
| + ") getterMethod (" + readMethod + ") on bean of class (" + bean.getClass() | ||
| + ") throws an exception.", | ||
| e.getCause()); | ||
| } | ||
| } | ||
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| @Override | ||
| public boolean supportSetter() { | ||
| return false; | ||
| } | ||
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| public void executeSetter(Object bean, Object value) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| // ************************************************************************ | ||
| // AnnotatedElement methods | ||
| // ************************************************************************ | ||
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| @Override | ||
| public boolean isAnnotationPresent(Class<? extends Annotation> annotationClass) { | ||
| return readMethod.isAnnotationPresent(annotationClass); | ||
| } | ||
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| @Override | ||
| public <T extends Annotation> T getAnnotation(Class<T> annotationClass) { | ||
| return readMethod.getAnnotation(annotationClass); | ||
| } | ||
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| @Override | ||
| public Annotation[] getAnnotations() { | ||
| return readMethod.getAnnotations(); | ||
| } | ||
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| @Override | ||
| public Annotation[] getDeclaredAnnotations() { | ||
| return readMethod.getDeclaredAnnotations(); | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return "method " + methodName + " on class " + readMethod.getDeclaringClass(); | ||
| } | ||
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| } |
61 changes: 0 additions & 61 deletions
61
...in/java/org/optaplanner/core/impl/domain/common/readmethod/DefaultReadMethodAccessor.java
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29 changes: 0 additions & 29 deletions
29
.../src/main/java/org/optaplanner/core/impl/domain/common/readmethod/ReadMethodAccessor.java
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