com.mchange.v2.codegen.bean.InnerBeanPropertyBeanGenerator Maven / Gradle / Ivy
/*
* Distributed as part of mchange-commons-java 0.2.9
*
* Copyright (C) 2015 Machinery For Change, Inc.
*
* Author: Steve Waldman
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of EITHER:
*
* 1) The GNU Lesser General Public License (LGPL), version 2.1, as
* published by the Free Software Foundation
*
* OR
*
* 2) The Eclipse Public License (EPL), version 1.0
*
* You may choose which license to accept if you wish to redistribute
* or modify this work. You may offer derivatives of this work
* under the license you have chosen, or you may provide the same
* choice of license which you have been offered here.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received copies of both LGPL v2.1 and EPL v1.0
* along with this software; see the files LICENSE-EPL and LICENSE-LGPL.
* If not, the text of these licenses are currently available at
*
* LGPL v2.1: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* EPL v1.0: http://www.eclipse.org/org/documents/epl-v10.php
*
*/
package com.mchange.v2.codegen.bean;
import java.lang.reflect.Modifier;
import java.io.IOException;
import com.mchange.v2.codegen.*;
public class InnerBeanPropertyBeanGenerator extends SimplePropertyBeanGenerator
{
String innerBeanClassName;
int inner_bean_member_modifiers = Modifier.PROTECTED;
int inner_bean_accessor_modifiers = Modifier.PROTECTED;
int inner_bean_replacer_modifiers = Modifier.PROTECTED;
String innerBeanInitializationExpression = null; //if you want it to stay null, set to String "null"
public void setInnerBeanClassName(String innerBeanClassName)
{ this.innerBeanClassName = innerBeanClassName; }
public String getInnerBeanClassName()
{ return innerBeanClassName; }
private String defaultInnerBeanInitializationExpression()
{ return "new " + innerBeanClassName + "()"; }
private String findInnerBeanClassName()
{ return (innerBeanClassName == null ? "InnerBean" : innerBeanClassName); }
private String findInnerBeanInitializationExpression()
{ return (innerBeanInitializationExpression == null ? defaultInnerBeanInitializationExpression() : innerBeanInitializationExpression); }
private int findInnerClassModifiers()
{
int out = Modifier.STATIC;
if (Modifier.isPublic( inner_bean_accessor_modifiers ) || Modifier.isPublic( inner_bean_replacer_modifiers ))
out |= Modifier.PUBLIC;
else if (Modifier.isProtected( inner_bean_accessor_modifiers ) || Modifier.isProtected( inner_bean_replacer_modifiers ))
out |= Modifier.PROTECTED;
else if (Modifier.isPrivate( inner_bean_accessor_modifiers ) && Modifier.isPrivate( inner_bean_replacer_modifiers ))
out |= Modifier.PRIVATE;
//else leave as package accessible
return out;
}
//TODO: add a hook for subclassses to custom define maskedProps
private void writeSyntheticInnerBeanClass() throws IOException
{
int num_props = props.length;
Property[] maskedProps = new Property[ num_props ];
for (int i = 0; i < num_props; ++i)
{
maskedProps[i] = new SimplePropertyMask( props[i] )
{
public int getVariableModifiers()
{ return Modifier.PRIVATE | Modifier.TRANSIENT; }
};
}
ClassInfo ci = new WrapperClassInfo( info )
{
public String getClassName()
{ return "InnerBean"; }
public int getModifiers()
{ return findInnerClassModifiers(); }
};
createInnerGenerator().generate( ci, maskedProps, iw );
}
protected PropertyBeanGenerator createInnerGenerator()
{
SimplePropertyBeanGenerator innerGenerator = new SimplePropertyBeanGenerator();
innerGenerator.setInner( true );
innerGenerator.addExtension( new SerializableExtension() );
CloneableExtension ce = new CloneableExtension();
ce.setExceptionSwallowing( true );
innerGenerator.addExtension( ce );
return innerGenerator;
}
protected void writeOtherVariables() throws IOException
{
iw.println( CodegenUtils.getModifierString( inner_bean_member_modifiers ) + ' ' +
findInnerBeanClassName() + " innerBean = " + findInnerBeanInitializationExpression() + ';');
iw.println();
iw.println( CodegenUtils.getModifierString( inner_bean_accessor_modifiers ) + ' ' +
findInnerBeanClassName() + " accessInnerBean()");
iw.println("{ return innerBean; }");
}
protected void writeOtherFunctions() throws IOException
{
iw.print( CodegenUtils.getModifierString( inner_bean_replacer_modifiers ) + ' ' +
findInnerBeanClassName() + " replaceInnerBean( " + findInnerBeanClassName() + " innerBean )");
if (constrainedProperties())
iw.println(" throws PropertyVetoException");
else
iw.println();
iw.println("{");
iw.upIndent();
iw.println("beforeReplaceInnerBean();");
iw.println("this.innerBean = innerBean;");
iw.println("afterReplaceInnerBean();");
iw.downIndent();
iw.println("}");
iw.println();
boolean is_abstract = Modifier.isAbstract( info.getModifiers() );
iw.print("protected ");
if (is_abstract)
iw.print("abstract ");
iw.print("void beforeReplaceInnerBean()");
if (constrainedProperties())
iw.print(" throws PropertyVetoException");
if (is_abstract)
iw.println(';');
else
iw.println(" {} //hook method for subclasses");
iw.println();
iw.print("protected ");
if (is_abstract)
iw.print("abstract ");
iw.print("void afterReplaceInnerBean()");
if (is_abstract)
iw.println(';');
else
iw.println(" {} //hook method for subclasses");
iw.println();
BeangenUtils.writeExplicitDefaultConstructor( Modifier.PUBLIC, info, iw );
iw.println();
iw.println("public " + info.getClassName() + "(" + findInnerBeanClassName() + " innerBean)");
iw.println("{ this.innerBean = innerBean; }");
}
protected void writeOtherClasses() throws IOException
{
if (innerBeanClassName == null)
writeSyntheticInnerBeanClass();
}
protected void writePropertyVariable( Property prop ) throws IOException
{ /* do nothing... we have no members, only the inner bean */ }
protected void writePropertyGetter( Property prop, Class propType ) throws IOException
{
String stn = prop.getSimpleTypeName();
String pfx = ("boolean".equals( stn ) ? "is" : "get" );
String methodName = pfx + BeangenUtils.capitalize( prop.getName() );
iw.print( CodegenUtils.getModifierString( prop.getGetterModifiers() ) );
iw.println(' ' + prop.getSimpleTypeName() + ' ' + methodName + "()");
iw.println('{');
iw.upIndent();
iw.println( stn + ' ' + prop.getName() + " = innerBean." + methodName + "();");
String retVal = this.getGetterDefensiveCopyExpression( prop, propType );
if (retVal == null) retVal = prop.getName();
iw.println("return " + retVal + ';');
iw.downIndent();
iw.println('}');
}
protected void writePropertySetter( Property prop, Class propType ) throws IOException
{
String stn = prop.getSimpleTypeName();
String pfx = ("boolean".equals( stn ) ? "is" : "get" );
String setVal = this.getSetterDefensiveCopyExpression( prop, propType );
if (setVal == null) setVal = prop.getName();
String getExpression = ("innerBean." + pfx + BeangenUtils.capitalize( prop.getName() ) + "()");
String setStatement = ("innerBean.set" + BeangenUtils.capitalize( prop.getName() ) + "( " + setVal + " );");
BeangenUtils.writePropertySetterWithGetExpressionSetStatement(prop, getExpression, setStatement, iw);
}
}