/*
 * @(#)FieldDeclaration.java	1.2 04/04/20
 *
 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL.  Use is subject to license terms.
 */

package com.sun.mirror.declaration;


import com.sun.mirror.type.TypeMirror;


/**
 * Represents a field of a type declaration.
 *
 * @author Joseph D. Darcy
 * @author Scott Seligman
 * @version 1.2 04/04/20
 * @since 1.5
 */

public interface FieldDeclaration extends MemberDeclaration {

    /**
     * Returns the type of this field.
     *
     * @return the type of this field
     */
    TypeMirror getType();

    /**
     * Returns the value of this field if this field is a compile-time
     * constant.  Returns <tt>null</tt> otherwise.
     * The value will be of a primitive type or <tt>String</tt>.
     * If the value is of a primitive type, it is wrapped in the
     * appropriate wrapper class (such as {@link Integer}).
     *
     * @return the value of this field if this field is a compile-time
     * constant, or <tt>null</tt> otherwise
     */
    Object getConstantValue();

    /**
     * Returns the text of a <i>constant expression</i> representing the
     * value of this field if this field is a compile-time constant.
     * Returns <tt>null</tt> otherwise.
     * The value will be of a primitive type or <tt>String</tt>.
     * The text returned is in a form suitable for representing the value
     * in source code.
     *
     * @return the text of a constant expression if this field is a
     *		compile-time constant, or <tt>null</tt> otherwise
     */
    String getConstantExpression();
}
