JLambdaParam.java

/**
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
 * Portions Copyright 2013-2017 Philip Helger + contributors
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
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 * elects to include this software in this distribution under the [CDDL or GPL
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package com.helger.jcodemodel;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;

/**
 * This represent a single parameter to a Java 8 lambda expression.
 *
 * @author Philip Helger
 * @since 2.7.10
 */
public class JLambdaParam extends AbstractJExpressionAssignmentTargetImpl implements IJDeclaration
{
  private final AbstractJType m_aType;
  private final String m_sName;

  public JLambdaParam (@Nullable final AbstractJType aType, @Nonnull final String sName)
  {
    if (!JJavaName.isJavaIdentifier (sName))
      throw new IllegalArgumentException ("Illegal variable name '" + sName + "'");
    m_aType = aType;
    m_sName = sName;
  }

  @Nullable
  public AbstractJType type ()
  {
    return m_aType;
  }

  public boolean hasType ()
  {
    return m_aType != null;
  }

  @Nonnull
  public String name ()
  {
    return m_sName;
  }

  public void declare (@Nonnull final JFormatter f)
  {
    if (m_aType != null)
      f.generable (m_aType);
    f.id (m_sName);
  }

  public void generate (@Nonnull final JFormatter f)
  {
    f.id (m_sName);
  }
}