接口的使用
cn.taketoday.expression.EvaluationContext

使用EvaluationContext的程序包

程序包	说明
cn.taketoday.expression	Core abstractions behind the Spring Expression Language.
cn.taketoday.expression.common	Common utility classes behind the Spring Expression Language.
cn.taketoday.expression.spel	SpEL's central implementation package.
cn.taketoday.expression.spel.ast	SpEL's abstract syntax tree.
cn.taketoday.expression.spel.standard	SpEL's standard parser implementation.
cn.taketoday.expression.spel.support	SpEL's default implementations for various core abstractions.

cn.taketoday.expression中EvaluationContext的使用

参数类型为EvaluationContext的cn.taketoday.expression中的方法

修饰符和类型	方法	说明
boolean	PropertyAccessor.canRead(EvaluationContext context, Object target, String name)	Called to determine if a resolver instance is able to access a specified property on a specified target object.
boolean	PropertyAccessor.canWrite(EvaluationContext context, Object target, String name)	Called to determine if a resolver instance is able to write to a specified property on a specified target object.
TypedValue	ConstructorExecutor.execute(EvaluationContext context, Object... arguments)	Execute a constructor in the specified context using the specified arguments.
TypedValue	MethodExecutor.execute(EvaluationContext context, Object target, Object... arguments)	Execute a command using the specified arguments, and using the specified expression state.
Object	Expression.getValue(EvaluationContext context)	Evaluate this expression in the provided context and return the result of evaluation.
<T> T	Expression.getValue(EvaluationContext context, Class<T> desiredResultType)	Evaluate the expression in a specified context which can resolve references to properties, methods, types, etc.
Object	Expression.getValue(EvaluationContext context, Object rootObject)	Evaluate this expression in the provided context and return the result of evaluation, but use the supplied root context as an override for any default root object specified in the context.
<T> T	Expression.getValue(EvaluationContext context, Object rootObject, Class<T> desiredResultType)	Evaluate the expression in a specified context which can resolve references to properties, methods, types, etc.
Class<?>	Expression.getValueType(EvaluationContext context)	Return the most general type that can be passed to the Expression.setValue(EvaluationContext, Object) method for the given context.
Class<?>	Expression.getValueType(EvaluationContext context, Object rootObject)	Return the most general type that can be passed to the Expression.setValue(EvaluationContext, Object, Object) method for the given context.
TypeDescriptor	Expression.getValueTypeDescriptor(EvaluationContext context)	Return the most general type that can be passed to the Expression.setValue(EvaluationContext, Object) method for the given context.
TypeDescriptor	Expression.getValueTypeDescriptor(EvaluationContext context, Object rootObject)	Return the most general type that can be passed to the Expression.setValue(EvaluationContext, Object, Object) method for the given context.
boolean	Expression.isWritable(EvaluationContext context)	Determine if an expression can be written to, i.e. setValue() can be called.
boolean	Expression.isWritable(EvaluationContext context, Object rootObject)	Determine if an expression can be written to, i.e. setValue() can be called.
TypedValue	PropertyAccessor.read(EvaluationContext context, Object target, String name)	Called to read a property from a specified target object.
Object	BeanResolver.resolve(EvaluationContext context, String beanName)	Look up a bean by the given name and return a corresponding instance for it.
ConstructorExecutor	ConstructorResolver.resolve(EvaluationContext context, String typeName, List<TypeDescriptor> argumentTypes)	Within the supplied context determine a suitable constructor on the supplied type that can handle the specified arguments.
MethodExecutor	MethodResolver.resolve(EvaluationContext context, Object targetObject, String name, List<TypeDescriptor> argumentTypes)	Within the supplied context determine a suitable method on the supplied object that can handle the specified arguments.
void	Expression.setValue(EvaluationContext context, Object value)	Set this expression in the provided context to the value provided.
void	Expression.setValue(EvaluationContext context, Object rootObject, Object value)	Set this expression in the provided context to the value provided.
void	PropertyAccessor.write(EvaluationContext context, Object target, String name, Object newValue)	Called to write to a property on a specified target object.

cn.taketoday.expression.common中EvaluationContext的使用

参数类型为EvaluationContext的cn.taketoday.expression.common中的方法

修饰符和类型	方法	说明
static <T> T	ExpressionUtils.convertTypedValue(EvaluationContext context, TypedValue typedValue, Class<T> targetType)	Determines if there is a type converter available in the specified context and attempts to use it to convert the supplied value to the specified type.
String	CompositeStringExpression.getValue(EvaluationContext context)
<T> T	CompositeStringExpression.getValue(EvaluationContext context, Class<T> expectedResultType)
String	CompositeStringExpression.getValue(EvaluationContext context, Object rootObject)
<T> T	CompositeStringExpression.getValue(EvaluationContext context, Object rootObject, Class<T> desiredResultType)
String	LiteralExpression.getValue(EvaluationContext context)
<T> T	LiteralExpression.getValue(EvaluationContext context, Class<T> expectedResultType)
String	LiteralExpression.getValue(EvaluationContext context, Object rootObject)
<T> T	LiteralExpression.getValue(EvaluationContext context, Object rootObject, Class<T> desiredResultType)
Class<?>	CompositeStringExpression.getValueType(EvaluationContext context)
Class<?>	CompositeStringExpression.getValueType(EvaluationContext context, Object rootObject)
Class<?>	LiteralExpression.getValueType(EvaluationContext context)
Class<?>	LiteralExpression.getValueType(EvaluationContext context, Object rootObject)
TypeDescriptor	CompositeStringExpression.getValueTypeDescriptor(EvaluationContext context)
TypeDescriptor	CompositeStringExpression.getValueTypeDescriptor(EvaluationContext context, Object rootObject)
TypeDescriptor	LiteralExpression.getValueTypeDescriptor(EvaluationContext context)
TypeDescriptor	LiteralExpression.getValueTypeDescriptor(EvaluationContext context, Object rootObject)
boolean	CompositeStringExpression.isWritable(EvaluationContext context)
boolean	CompositeStringExpression.isWritable(EvaluationContext context, Object rootObject)
boolean	LiteralExpression.isWritable(EvaluationContext context)
boolean	LiteralExpression.isWritable(EvaluationContext context, Object rootObject)
void	CompositeStringExpression.setValue(EvaluationContext context, Object value)
void	CompositeStringExpression.setValue(EvaluationContext context, Object rootObject, Object value)
void	LiteralExpression.setValue(EvaluationContext context, Object value)
void	LiteralExpression.setValue(EvaluationContext context, Object rootObject, Object value)

cn.taketoday.expression.spel中EvaluationContext的使用

返回EvaluationContext的cn.taketoday.expression.spel中的方法

修饰符和类型	方法	说明
EvaluationContext	ExpressionState.getEvaluationContext()

参数类型为EvaluationContext的cn.taketoday.expression.spel中的方法

修饰符和类型	方法	说明
abstract Object	CompiledExpression.getValue(Object target, EvaluationContext context)	Subclasses of CompiledExpression generated by SpelCompiler will provide an implementation of this method.

参数类型为EvaluationContext的cn.taketoday.expression.spel中的构造器

限定符	构造器	说明
	ExpressionState(EvaluationContext context)
	ExpressionState(EvaluationContext context, SpelParserConfiguration configuration)
	ExpressionState(EvaluationContext context, TypedValue rootObject)
	ExpressionState(EvaluationContext context, TypedValue rootObject, SpelParserConfiguration configuration)

cn.taketoday.expression.spel.ast中EvaluationContext的使用

参数类型为EvaluationContext的cn.taketoday.expression.spel.ast中的方法

修饰符和类型	方法	说明
static boolean	Operator.equalityCheck(EvaluationContext context, Object left, Object right)	Perform an equality check for the given operand values.
boolean	PropertyOrFieldReference.isWritableProperty(String name, TypedValue contextObject, EvaluationContext evalContext)

cn.taketoday.expression.spel.standard中EvaluationContext的使用

返回EvaluationContext的cn.taketoday.expression.spel.standard中的方法

修饰符和类型	方法	说明
EvaluationContext	SpelExpression.getEvaluationContext()	Return the default evaluation context that will be used if none is supplied on an evaluation call.

参数类型为EvaluationContext的cn.taketoday.expression.spel.standard中的方法

修饰符和类型	方法	说明
Object	SpelExpression.getValue(EvaluationContext context)
<T> T	SpelExpression.getValue(EvaluationContext context, Class<T> expectedResultType)
Object	SpelExpression.getValue(EvaluationContext context, Object rootObject)
<T> T	SpelExpression.getValue(EvaluationContext context, Object rootObject, Class<T> expectedResultType)
Class<?>	SpelExpression.getValueType(EvaluationContext context)
Class<?>	SpelExpression.getValueType(EvaluationContext context, Object rootObject)
TypeDescriptor	SpelExpression.getValueTypeDescriptor(EvaluationContext context)
TypeDescriptor	SpelExpression.getValueTypeDescriptor(EvaluationContext context, Object rootObject)
boolean	SpelExpression.isWritable(EvaluationContext context)
boolean	SpelExpression.isWritable(EvaluationContext context, Object rootObject)
void	SpelExpression.setEvaluationContext(EvaluationContext evaluationContext)	Set the evaluation context that will be used if none is specified on an evaluation call.
void	SpelExpression.setValue(EvaluationContext context, Object value)
void	SpelExpression.setValue(EvaluationContext context, Object rootObject, Object value)

cn.taketoday.expression.spel.support中EvaluationContext的使用

实现EvaluationContext的cn.taketoday.expression.spel.support中的类

修饰符和类型	类	说明
final class	SimpleEvaluationContext	A basic implementation of EvaluationContext that focuses on a subset of essential SpEL features and customization options, targeting simple condition evaluation and in particular data binding scenarios.
class	StandardEvaluationContext	A powerful and highly configurable EvaluationContext implementation.

参数类型为EvaluationContext的cn.taketoday.expression.spel.support中的方法

修饰符和类型	方法	说明
boolean	ReflectivePropertyAccessor.canRead(EvaluationContext context, Object target, String name)
boolean	ReflectivePropertyAccessor.OptimalPropertyAccessor.canRead(EvaluationContext context, Object target, String name)
boolean	ReflectivePropertyAccessor.canWrite(EvaluationContext context, Object target, String name)
boolean	ReflectivePropertyAccessor.OptimalPropertyAccessor.canWrite(EvaluationContext context, Object target, String name)
PropertyAccessor	ReflectivePropertyAccessor.createOptimalAccessor(EvaluationContext context, Object target, String name)	Attempt to create an optimized property accessor tailored for a property of a particular name on a particular class.
TypedValue	ReflectiveConstructorExecutor.execute(EvaluationContext context, Object... arguments)
TypedValue	ReflectiveMethodExecutor.execute(EvaluationContext context, Object target, Object... arguments)
TypedValue	ReflectivePropertyAccessor.OptimalPropertyAccessor.read(EvaluationContext context, Object target, String name)
TypedValue	ReflectivePropertyAccessor.read(EvaluationContext context, Object target, String name)
MethodExecutor	DataBindingMethodResolver.resolve(EvaluationContext context, Object targetObject, String name, List<TypeDescriptor> argumentTypes)
ConstructorExecutor	ReflectiveConstructorResolver.resolve(EvaluationContext context, String typeName, List<TypeDescriptor> argumentTypes)	Locate a constructor on the type.
MethodExecutor	ReflectiveMethodResolver.resolve(EvaluationContext context, Object targetObject, String name, List<TypeDescriptor> argumentTypes)	Locate a method on a type.
void	ReflectivePropertyAccessor.OptimalPropertyAccessor.write(EvaluationContext context, Object target, String name, Object newValue)
void	ReflectivePropertyAccessor.write(EvaluationContext context, Object target, String name, Object newValue)