Java Code Examples for org.springframework.expression.spel.support.ReflectivePropertyAccessor#OptimalPropertyAccessor

The following examples show how to use org.springframework.expression.spel.support.ReflectivePropertyAccessor#OptimalPropertyAccessor . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: Indexer.java    From spring-analysis-note with MIT License 6 votes vote down vote up 
@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 no compilation possible)
		return (this.cachedReadAccessor != null &&
				this.cachedReadAccessor instanceof ReflectivePropertyAccessor.OptimalPropertyAccessor &&
				getChild(0) instanceof StringLiteral);
	}
	return false;
}
Example 2
Source File: Indexer.java    From java-technology-stack with MIT License 6 votes vote down vote up 
@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 no compilation possible)
		return (this.cachedReadAccessor != null &&
				this.cachedReadAccessor instanceof ReflectivePropertyAccessor.OptimalPropertyAccessor &&
				getChild(0) instanceof StringLiteral);
	}
	return false;
}
Example 3
Source File: Indexer.java    From lams with GNU General Public License v2.0 6 votes vote down vote up 
@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;
}
Example 4
Source File: Indexer.java    From spring4-understanding with Apache License 2.0 6 votes vote down vote up 
@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;
}
Example 5
Source File: Indexer.java    From lams with GNU General Public License v2.0 4 votes vote down vote up 
@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());
}
Example 6
Source File: Indexer.java    From spring4-understanding with Apache License 2.0 4 votes vote down vote up 
@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());
}