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package com.sun.source.tree;

A tree node for an if statement. For example: 
  if ( condition )
     thenStatement
  if ( condition )
      thenStatement
  else
      elseStatement

Author:
Peter von der Ahé, Jonathan Gibbons
@jls
14.9 The if Statement
Since:
1.6/**
 * A tree node for an {@code if} statement.
 *
 * For example:
 * <pre>
 *   if ( <em>condition</em> )
 *      <em>thenStatement</em>
 *
 *   if ( <em>condition</em> )
 *       <em>thenStatement</em>
 *   else
 *       <em>elseStatement</em>
 * </pre>
 *
 * @jls 14.9 The if Statement
 *
 * @author Peter von der Ah&eacute;
 * @author Jonathan Gibbons
 * @since 1.6
 */
public interface IfTree extends StatementTree {
    
Returns the condition of the if-statement.
Returns:
the condition/**
     * Returns the condition of the if-statement.
     * @return the condition
     */
    ExpressionTree getCondition();

    
Returns the statement to be executed if the condition is true
Returns:
the statement to be executed if the condition is true/**
     * Returns the statement to be executed if the condition is true
     * @return the statement to be executed if the condition is true
     */
    StatementTree getThenStatement();

    
Returns the statement to be executed if the condition is false, or null if there is no such statement. 
Returns:
the statement to be executed if the condition is false/**
     * Returns the statement to be executed if the condition is false,
     * or {@code null} if there is no such statement.
     * @return the statement to be executed if the condition is false
     */
    StatementTree getElseStatement();
}