程序包 org.apache.felix.gogo.runtime

类 Expression.Operator

  • 直接已知子类:
    Expression.Assignment, Expression.Comparator
    封闭类:
    Expression
    public abstract class Expression.Operator
extends java.lang.Object
    Abstract definition of a supported operator. An operator is defined by its name (pattern), precedence and if it is left- or right associative.

    • 构造器概要

      构造器 
      构造器 说明
      Operator​(java.lang.String oper, int precedence, boolean leftAssoc)
      Creates a new operator.

    • 方法概要

      所有方法 实例方法 抽象方法 具体方法 
      修饰符和类型 方法 说明
      java.lang.Object eval​(java.lang.String v1, java.lang.String v2)  
      abstract java.math.BigDecimal eval​(java.math.BigDecimal v1, java.math.BigDecimal v2)
      Implementation for this operator.
      java.lang.Object eval​(java.util.Map<java.lang.String,​java.lang.Object> variables, java.lang.Object v1, java.lang.Object v2)  
      java.lang.String getOper()  
      int getPrecedence()  
      boolean isLeftAssoc()  
      java.lang.String toString()  

      • 从类继承的方法 java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

    • 构造器详细资料

      • Operator

        public Operator​(java.lang.String oper,
                int precedence,
                boolean leftAssoc)
        Creates a new operator.
        参数:
        oper - The operator name (pattern).
        precedence - The operators precedence.
        leftAssoc - true if the operator is left associative, else false.

    • 方法详细资料

      • getOper

        public java.lang.String getOper()

      • getPrecedence

        public int getPrecedence()

      • isLeftAssoc

        public boolean isLeftAssoc()

      • eval

        public java.lang.Object eval​(java.util.Map<java.lang.String,​java.lang.Object> variables,
                             java.lang.Object v1,
                             java.lang.Object v2)

      • eval

        public java.lang.Object eval​(java.lang.String v1,
                             java.lang.String v2)

      • eval

        public abstract java.math.BigDecimal eval​(java.math.BigDecimal v1,
                                          java.math.BigDecimal v2)
        Implementation for this operator.
        参数:
        v1 - Operand 1.
        v2 - Operand 2.
        返回:
        The result of the operation.

      • toString

        public java.lang.String toString()
        覆盖:
        toString 在类中 java.lang.Object