Package edu.umd.cs.findbugs.ba.constant

Class Constant

  • public class Constant
extends java.lang.Object
    Abstract dataflow value representing a value which may or may not be a constant.
    Author:
    David Hovemeyer
    See Also:
    ConstantAnalysis

    • Field Detail

      • NOT_CONSTANT

        public static final Constant NOT_CONSTANT
        Single instance representing all non-constant values.

    • Constructor Detail

      • Constant

        public Constant​(@Nullable
                java.lang.Object value)
        Constructor for a constant value.
        Parameters:
        value - the constant value; must be a String, Integer, etc.

    • Method Detail

      • getConstantValue

        public java.lang.Object getConstantValue()

      • isConstant

        public boolean isConstant()
        Return whether or not this value is a constant.
        Returns:
        true if the value is a constant, false if not

      • isConstantString

        public boolean isConstantString()
        Return whether or not this value is a constant String.
        Returns:
        true if the value is a constant String, false if not

      • getConstantString

        public java.lang.String getConstantString()
        Get the constant String value of this value.
        Returns:
        the constant String value

      • isConstantInteger

        public boolean isConstantInteger()
        Return whether or not this value is a constant int/Integer.
        Returns:
        true if the value is a constant int/Integer, false if not

      • getConstantInt

        public int getConstantInt()
        Get the constant int value of this value.
        Returns:
        the constant int value

      • merge

        public static Constant merge​(Constant a,
                             Constant b)
        Merge two Constants.
        Parameters:
        a - a StaticConstant
        b - another StaticConstant
        Returns:
        the merge (dataflow meet) of the two Constants

      • equals

        public boolean equals​(java.lang.Object obj)
        Overrides:
        equals in class java.lang.Object

      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class java.lang.Object

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object