程序包的使用
cn.taketoday.expression
使用cn.taketoday.expression的程序包
程序包
说明
Core abstractions behind the Spring Expression Language.
Common utility classes behind the Spring Expression Language.
SpEL's central implementation package.
SpEL's abstract syntax tree.
SpEL's standard parser implementation.
SpEL's default implementations for various core abstractions.
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类说明An AccessException is thrown by an accessor if it has an unexpected problem.A bean resolver can be registered with the evaluation context and will kick in for bean references:
@myBeanNameand&myBeanNameexpressions.Executors are built by resolvers and can be cached by the infrastructure to repeat an operation quickly without going back to the resolvers.A constructor resolver attempts locate a constructor and returns a ConstructorExecutor that can be used to invoke that constructor.Expressions are executed in an evaluation context.Represent an exception that occurs during expression evaluation.An expression capable of evaluating itself against context objects.Super class for exceptions that can occur whilst processing expressions.MethodExecutors are built by the resolvers and can be cached by the infrastructure to repeat an operation quickly without going back to the resolvers.A method resolver attempts to locate a method and returns a command executor that can be used to invoke that method.Supported operations that anOperatorOverloadercan implement for any pair of operands.By default the mathematical operatorsOperationsupport simple types like numbers.Represent an exception that occurs during expression parsing.Input provided to an expression parser that can influence an expression parsing/compilation routine.A property accessor is able to read from (and possibly write to) an object's properties.Instances of a type comparator should be able to compare pairs of objects for equality.A type converter can convert values between different types encountered during expression evaluation.Encapsulates an object and aTypeDescriptorthat describes it.Implementers of this interface are expected to be able to locate types. -
类说明Expressions are executed in an evaluation context.Represent an exception that occurs during expression evaluation.An expression capable of evaluating itself against context objects.Parses expression strings into compiled expressions that can be evaluated.Represent an exception that occurs during expression parsing.Input provided to an expression parser that can influence an expression parsing/compilation routine.A type converter can convert values between different types encountered during expression evaluation.Encapsulates an object and a
TypeDescriptorthat describes it. -
类说明Expressions are executed in an evaluation context.Represent an exception that occurs during expression evaluation.Super class for exceptions that can occur whilst processing expressions.Supported operations that an
OperatorOverloadercan implement for any pair of operands.Represent an exception that occurs during expression parsing.A property accessor is able to read from (and possibly write to) an object's properties.Instances of a type comparator should be able to compare pairs of objects for equality.A type converter can convert values between different types encountered during expression evaluation.Encapsulates an object and aTypeDescriptorthat describes it. -
类说明Expressions are executed in an evaluation context.Represent an exception that occurs during expression evaluation.A property accessor is able to read from (and possibly write to) an object's properties.Encapsulates an object and a
TypeDescriptorthat describes it. -
类说明Expressions are executed in an evaluation context.Represent an exception that occurs during expression evaluation.An expression capable of evaluating itself against context objects.Parses expression strings into compiled expressions that can be evaluated.Represent an exception that occurs during expression parsing.Input provided to an expression parser that can influence an expression parsing/compilation routine.
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类说明An AccessException is thrown by an accessor if it has an unexpected problem.A bean resolver can be registered with the evaluation context and will kick in for bean references:
@myBeanNameand&myBeanNameexpressions.Executors are built by resolvers and can be cached by the infrastructure to repeat an operation quickly without going back to the resolvers.A constructor resolver attempts locate a constructor and returns a ConstructorExecutor that can be used to invoke that constructor.Expressions are executed in an evaluation context.Represent an exception that occurs during expression evaluation.Super class for exceptions that can occur whilst processing expressions.MethodExecutors are built by the resolvers and can be cached by the infrastructure to repeat an operation quickly without going back to the resolvers.MethodFilter instances allow SpEL users to fine tune the behaviour of the method resolution process.A method resolver attempts to locate a method and returns a command executor that can be used to invoke that method.Supported operations that anOperatorOverloadercan implement for any pair of operands.By default the mathematical operatorsOperationsupport simple types like numbers.A property accessor is able to read from (and possibly write to) an object's properties.Instances of a type comparator should be able to compare pairs of objects for equality.A type converter can convert values between different types encountered during expression evaluation.Encapsulates an object and aTypeDescriptorthat describes it.Implementers of this interface are expected to be able to locate types.