Class ElementValue

java.lang.Object
org.apache.tomcat.util.bcel.classfile.ElementValue
Direct Known Subclasses:
AnnotationElementValue, ArrayElementValue, ClassElementValue, EnumElementValue, SimpleElementValue
public abstract class ElementValue extends Object
The element_value structure is documented at https://docs.oracle.com/javase/specs/jvms/se11/html/jvms-4.html#jvms-4.7.16.1 
element_value {
    u1 tag;
    union {
        u2 const_value_index;

        {   u2 type_name_index;
            u2 const_name_index;
        } enum_const_value;

        u2 class_info_index;

        annotation annotation_value;

        {   u2            num_values;
            element_value values[num_values];
        } array_value;
    } value;
}

  • Field Details

    • STRING

      public static final byte STRING
      Tag for a String element value.
      See Also:

    • ENUM_CONSTANT

      public static final byte ENUM_CONSTANT
      Tag for an enum constant element value.
      See Also:

    • CLASS

      public static final byte CLASS
      Tag for a class element value.
      See Also:

    • ANNOTATION

      public static final byte ANNOTATION
      Tag for an annotation element value.
      See Also:

    • ARRAY

      public static final byte ARRAY
      Tag for an array element value.
      See Also:

    • PRIMITIVE_INT

      public static final byte PRIMITIVE_INT
      Tag for an int primitive element value.
      See Also:

    • PRIMITIVE_BYTE

      public static final byte PRIMITIVE_BYTE
      Tag for a byte primitive element value.
      See Also:

    • PRIMITIVE_CHAR

      public static final byte PRIMITIVE_CHAR
      Tag for a char primitive element value.
      See Also:

    • PRIMITIVE_DOUBLE

      public static final byte PRIMITIVE_DOUBLE
      Tag for a double primitive element value.
      See Also:

    • PRIMITIVE_FLOAT

      public static final byte PRIMITIVE_FLOAT
      Tag for a float primitive element value.
      See Also:

    • PRIMITIVE_LONG

      public static final byte PRIMITIVE_LONG
      Tag for a long primitive element value.
      See Also:

    • PRIMITIVE_SHORT

      public static final byte PRIMITIVE_SHORT
      Tag for a short primitive element value.
      See Also:

    • PRIMITIVE_BOOLEAN

      public static final byte PRIMITIVE_BOOLEAN
      Tag for a boolean primitive element value.
      See Also:

  • Method Details

    • readElementValue

      public static ElementValue readElementValue(DataInput input, ConstantPool cpool) throws IOException
      Reads an element_value as an ElementValue.
      Parameters:
      input - Raw data input.
      cpool - Constant pool.
      Returns:
      a new ElementValue.
      Throws:
      IOException - if an I/O error occurs.

    • readElementValue

      public static ElementValue readElementValue(DataInput input, ConstantPool cpool, int arrayNesting) throws IOException
      Reads an element_value as an ElementValue.
      Parameters:
      input - Raw data input.
      cpool - Constant pool.
      arrayNesting - level of current array nesting.
      Returns:
      a new ElementValue.
      Throws:
      IOException - if an I/O error occurs.
      Since:
      6.7.0

    • stringifyValue

      public abstract String stringifyValue()
      Returns a string representation of this element value.
      Returns:
      the string representation