程序包 cn.taketoday.expression.spel.ast
@NonNullApi
@NonNullFields
package cn.taketoday.expression.spel.ast
SpEL's abstract syntax tree.
-
类说明Represents assignment.Utilities methods for use in the Ast classes.Represents a bean reference to a type, for example
@fooor@'foo.bar'.Represents the literal valuesTRUEandFALSE.Represents a DOT separated expression sequence, such as'property1.property2.methodOne()'.Represents the invocation of a constructor.Represents the Elvis operator?Expression language AST node that represents a float literal.Utility methods (formatters etc) used during parsing and evaluation.A function reference is of the form "#someFunction(a,b,c)".An 'identifier'SpelNode.An Indexer can index into some proceeding structure to access a particular piece of it.Represent a list in an expression, e.g. '{1,2,3}'Represent a map in an expression, e.g.Expression language AST node that represents an integer literal.Common superclass for nodes representing literals (boolean, string, number, etc).Expression language AST node that represents a long integer literal.Expression language AST node that represents a method reference.Expression language AST node that represents null.Represents the boolean AND operation.Decrement operator.Implements division operator.Implements the equality operator.Common supertype for operators that operate on either one or two operands.A descriptor comparison encapsulates the result of comparing descriptor for two operands and describes at what level they are compatible.Represents the between operator.The operator 'instanceof' checks if an object is of the class specified in the right hand operand, in the same way thatinstanceofdoes in Java.Implements the matches operator.Represents a NOT operation.The power operator.Implements greater-than-or-equal operator.Implements the greater-than operator.Increment operator.Implements the less-than-or-equal operator.Implements the less-than operator.The minus operator supports: subtraction of numbers subtraction of an int from a string of one character (effectively decreasing that character), so 'd'-3='a'Implements the modulus operator.Implements themultiplyoperator.Implements the not-equal operator.Represents the boolean OR operation.The plus operator will: add numbers concatenate stringsRepresents projection, where a given operation is performed on all elements in some input sequence, returning a new sequence of the same size.Represents a simple property or field reference.Represents a dot separated sequence of strings that indicate a package qualified type reference.Expression language AST node that represents a real literal.Represents selection over a map or collection.The common supertype of all AST nodes in a parsed Spring Expression Language format expression.Expression language AST node that represents a string literal.Represents a ternary expression, for example: "someCheck()?Captures primitive types and their corresponding class objects, plus one special entry that represents all reference (non-primitive) types.Represents a reference to a type, for example"T(String)" or "T(com.somewhere.Foo)".Represents a reference to a value.A ValueRef for the null value.A ValueRef holder for a single value, which cannot be set.Represents a variable reference, eg.