接口的使用
cn.taketoday.expression.Expression

使用Expression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.standard	SpEL's standard parser implementation.

cn.taketoday.expression中Expression的使用

返回Expression的cn.taketoday.expression中的方法

修饰符和类型	方法	说明
Expression	ExpressionParser.parseExpression(String expressionString)	Parse the expression string and return an Expression object you can use for repeated evaluation.
Expression	ExpressionParser.parseExpression(String expressionString, ParserContext context)	Parse the expression string and return an Expression object you can use for repeated evaluation.

cn.taketoday.expression.common中Expression的使用

实现Expression的cn.taketoday.expression.common中的类

修饰符和类型	类	说明
class	CompositeStringExpression	Represents a template expression broken into pieces.
class	LiteralExpression	A very simple hardcoded implementation of the Expression interface that represents a string literal.

返回Expression的cn.taketoday.expression.common中的方法

修饰符和类型	方法	说明
protected abstract Expression	TemplateAwareExpressionParser.doParseExpression(String expressionString, ParserContext context)	Actually parse the expression string and return an Expression object.
final Expression[]	CompositeStringExpression.getExpressions()
Expression	TemplateAwareExpressionParser.parseExpression(String expressionString)
Expression	TemplateAwareExpressionParser.parseExpression(String expressionString, ParserContext context)

参数类型为Expression的cn.taketoday.expression.common中的构造器

限定符	构造器	说明
	CompositeStringExpression(String expressionString, Expression[] expressions)

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

实现Expression的cn.taketoday.expression.spel.standard中的类

修饰符和类型	类	说明
class	SpelExpression	A SpelExpression represents a parsed (valid) expression that is ready to be evaluated in a specified context.

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

修饰符和类型	方法	说明
static boolean	SpelCompiler.compile(Expression expression)	Request that an attempt is made to compile the specified expression.
static void	SpelCompiler.revertToInterpreted(Expression expression)	Request to revert to the interpreter for expression evaluation.