package org.eclipse.jdt.core.jdom;
/*
 * (c) Copyright IBM Corp. 2000, 2001.
 * All Rights Reserved.
 */
import org.eclipse.jdt.internal.core.*;

/**
 * Represents a Java compilation unit (<code>.java</code> source file). 
 * The corresponding syntactic unit is CompilationUnit (JLS2 7.3).  
 * Allowable child types for a compilation unit are <code>IDOMPackage</code>, <code>IDOMImport</code>,
 * and <code>IDOMType</code>.
 * <p>
 * This interface is not intended to be implemented by clients.
 * </p>
 */
public interface IDOMCompilationUnit extends IDOMNode {
/**
 * Returns the header comment for this compilation unit. The header comment
 * appears before the first declaration in a compilation unit.
 * The syntax for a comment corresponds to Comments (JLS2 3.7), <b>including</b>
 * comment delimiters.
 *
 * @return the header comment for this compilation unit, or <code>null</code> if
 *   no header comment is present
 */
public String getHeader();
/**
 * The <code>IDOMCompilationNode</code> refinement of this <code>IDOMNode</code>
 * method returns the name of this compilation unit.
 *
 * <p>The name of a compilation unit is the name of the first top-level public type
 * defined in the compilation unit, suffixed with ".java". For example, if the first
 * top-level public type defined in this compilation unit has the name "Hanoi",
 * then name of this compilation unit is "Hanoi.java".</p>
 *
 * <p>In the absence of a public top-level type, the name of the first top-level
 * type is used. In the absence of any type, the name of the compilation unit
 * is <code>null</code>.</p>
 *
 * @return the name of this compilation unit, or <code>null</code> if none
 */
public String getName();
/**
 * Sets the header comment for this compilation unit. The header comment
 * appears before the first declaration in a compilation unit.
 * The syntax for a comment corresponds to Comments (JLS2 3.7), <b>including</b>
 * comment delimiters.
 *
 * @param comment the header comment for this compilation unit, or <code>null</code> if
 *   indicating no header comment
 */
public void setHeader(String comment);
/**
 * The <code>IDOMCompilationNode</code> refinement of this <code>IDOMNode</code>
 * method has no effect (the name is computed from the types declared within it).
 */
public void setName(String name);
}