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Java ReflectivePropertyAccessor.OptimalPropertyAccessor方法代码示例

本文整理汇总了Java中org.springframework.expression.spel.support.ReflectivePropertyAccessor.OptimalPropertyAccessor方法的典型用法代码示例。如果您正苦于以下问题:Java ReflectivePropertyAccessor.OptimalPropertyAccessor方法的具体用法?Java ReflectivePropertyAccessor.OptimalPropertyAccessor怎么用?Java ReflectivePropertyAccessor.OptimalPropertyAccessor使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在org.springframework.expression.spel.support.ReflectivePropertyAccessor的用法示例。


在下文中一共展示了ReflectivePropertyAccessor.OptimalPropertyAccessor方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: isCompilable

import org.springframework.expression.spel.support.ReflectivePropertyAccessor; //导入方法依赖的package包/类
@Override
public boolean isCompilable() {
	if (this.indexedType == IndexedType.ARRAY) {
		return (this.exitTypeDescriptor != null);
	}
	else if (this.indexedType == IndexedType.LIST) {
		return this.children[0].isCompilable();
	}
	else if (this.indexedType == IndexedType.MAP) {
		return (this.children[0] instanceof PropertyOrFieldReference || this.children[0].isCompilable());
	}
	else if (this.indexedType == IndexedType.OBJECT) {
		// If the string name is changing the accessor is clearly going to change (so compilation is not possible)
		if (this.cachedReadAccessor != null && 
				(this.cachedReadAccessor instanceof ReflectivePropertyAccessor.OptimalPropertyAccessor) &&
				(getChild(0) instanceof StringLiteral)) {
			return true;
		}
	}
	return false;
}
 
开发者ID:langtianya,项目名称:spring4-understanding,代码行数:22,代码来源:Indexer.java

示例2: getValue

import org.springframework.expression.spel.support.ReflectivePropertyAccessor; //导入方法依赖的package包/类
@Override
public TypedValue getValue() {
	Class<?> targetObjectRuntimeClass = getObjectClass(this.targetObject);
	try {
		if (Indexer.this.cachedReadName != null && Indexer.this.cachedReadName.equals(this.name) &&
				Indexer.this.cachedReadTargetType != null &&
				Indexer.this.cachedReadTargetType.equals(targetObjectRuntimeClass)) {
			// It is OK to use the cached accessor
			return Indexer.this.cachedReadAccessor.read(this.evaluationContext, this.targetObject, this.name);
		}
		List<PropertyAccessor> accessorsToTry = AstUtils.getPropertyAccessorsToTry(
				targetObjectRuntimeClass, this.evaluationContext.getPropertyAccessors());
		if (accessorsToTry != null) {
			for (PropertyAccessor accessor : accessorsToTry) {
				if (accessor.canRead(this.evaluationContext, this.targetObject, this.name)) {
					if (accessor instanceof ReflectivePropertyAccessor) {
						accessor = ((ReflectivePropertyAccessor) accessor).createOptimalAccessor(
								this.evaluationContext, this.targetObject, this.name);
					}
					Indexer.this.cachedReadAccessor = accessor;
					Indexer.this.cachedReadName = this.name;
					Indexer.this.cachedReadTargetType = targetObjectRuntimeClass;
					if (accessor instanceof ReflectivePropertyAccessor.OptimalPropertyAccessor) {
						ReflectivePropertyAccessor.OptimalPropertyAccessor optimalAccessor =
								(ReflectivePropertyAccessor.OptimalPropertyAccessor) accessor;
						Member member = optimalAccessor.member;
						Indexer.this.exitTypeDescriptor = CodeFlow.toDescriptor(member instanceof Method ?
								((Method) member).getReturnType() : ((Field) member).getType());
					}
					return accessor.read(this.evaluationContext, this.targetObject, this.name);
				}
			}
		}
	}
	catch (AccessException ex) {
		throw new SpelEvaluationException(getStartPosition(), ex, SpelMessage.INDEXING_NOT_SUPPORTED_FOR_TYPE,
				this.targetObjectTypeDescriptor.toString());
	}
	throw new SpelEvaluationException(getStartPosition(), SpelMessage.INDEXING_NOT_SUPPORTED_FOR_TYPE,
			this.targetObjectTypeDescriptor.toString());
}
 
开发者ID:langtianya,项目名称:spring4-understanding,代码行数:42,代码来源:Indexer.java


注:本文中的org.springframework.expression.spel.support.ReflectivePropertyAccessor.OptimalPropertyAccessor方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。