@NonNullApi @NonNullFields

程序包 org.springframework.expression.spel.ast

SpEL's abstract syntax tree.

请参阅: 说明

接口概要

接口	说明
ValueRef	Represents a reference to a value.

类概要

类	说明
Assign	Represents assignment.
AstUtils	Utilities methods for use in the Ast classes.
BeanReference	Represents a bean reference to a type, for example @foo or @'foo.bar'.
BooleanLiteral	Represents the literal values TRUE and FALSE.
CompoundExpression	Represents a DOT separated expression sequence, such as 'property1.property2.methodOne()'.
ConstructorReference	Represents the invocation of a constructor.
Elvis	Represents the elvis operator ?
FloatLiteral	Expression language AST node that represents a float literal.
FormatHelper	Utility methods (formatters etc) used during parsing and evaluation.
FunctionReference	A function reference is of the form "#someFunction(a,b,c)".
Identifier
Indexer	An Indexer can index into some proceeding structure to access a particular piece of it.
InlineList	Represent a list in an expression, e.g. '{1,2,3}'
InlineMap	Represent a map in an expression, e.g.
IntLiteral	Expression language AST node that represents an integer literal.
Literal	Common superclass for nodes representing literals (boolean, string, number, etc).
LongLiteral	Expression language AST node that represents a long integer literal.
MethodReference	Expression language AST node that represents a method reference.
NullLiteral	Expression language AST node that represents null.
OpAnd	Represents the boolean AND operation.
OpDec	Decrement operator.
OpDivide	Implements division operator.
OpEQ	Implements the equality operator.
Operator	Common supertype for operators that operate on either one or two operands.
Operator.DescriptorComparison	A descriptor comparison encapsulates the result of comparing descriptor for two operands and describes at what level they are compatible.
OperatorBetween	Represents the between operator.
OperatorInstanceof	The operator 'instanceof' checks if an object is of the class specified in the right hand operand, in the same way that instanceof does in Java.
OperatorMatches	Implements the matches operator.
OperatorNot	Represents a NOT operation.
OperatorPower	The power operator.
OpGE	Implements greater-than-or-equal operator.
OpGT	Implements the greater-than operator.
OpInc	Increment operator.
OpLE	Implements the less-than-or-equal operator.
OpLT	Implements the less-than operator.
OpMinus	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' It can be used as a unary operator for numbers.
OpModulus	Implements the modulus operator.
OpMultiply	Implements the multiply operator.
OpNE	Implements the not-equal operator.
OpOr	Represents the boolean OR operation.
OpPlus	The plus operator will: add numbers concatenate strings It can be used as a unary operator for numbers.
Projection	Represents projection, where a given operation is performed on all elements in some input sequence, returning a new sequence of the same size.
PropertyOrFieldReference	Represents a simple property or field reference.
QualifiedIdentifier	Represents a dot separated sequence of strings that indicate a package qualified type reference.
RealLiteral	Expression language AST node that represents a real literal.
Selection	Represents selection over a map or collection.
SpelNodeImpl	The common supertype of all AST nodes in a parsed Spring Expression Language format expression.
StringLiteral	Expression language AST node that represents a string literal.
Ternary	Represents a ternary expression, for example: "someCheck()?
TypeReference	Represents a reference to a type, for example "T(String)" or "T(com.somewhere.Foo)"
ValueRef.NullValueRef	A ValueRef for the null value.
ValueRef.TypedValueHolderValueRef	A ValueRef holder for a single value, which cannot be set.
VariableReference	Represents a variable reference, eg.

枚举概要

枚举	说明
TypeCode	Captures primitive types and their corresponding class objects, plus one special entry that represents all reference (non-primitive) types.

程序包org.springframework.expression.spel.ast的说明

SpEL's abstract syntax tree.