com.sun.tools.xjc.generator.bean.field.NoExtendedContentField Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2020 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.tools.xjc.generator.bean.field;
import java.util.ArrayList;
import java.util.List;
import com.sun.codemodel.JBlock;
import com.sun.codemodel.JClass;
import com.sun.codemodel.JExpr;
import com.sun.codemodel.JExpression;
import com.sun.codemodel.JMethod;
import com.sun.codemodel.JType;
import com.sun.codemodel.JVar;
import com.sun.tools.xjc.generator.bean.ClassOutlineImpl;
import com.sun.tools.xjc.generator.bean.MethodWriter;
import com.sun.tools.xjc.model.CElement;
import com.sun.tools.xjc.model.CPropertyInfo;
import com.sun.tools.xjc.model.CReferencePropertyInfo;
import com.sun.tools.xjc.outline.Aspect;
import org.glassfish.jaxb.core.api.impl.NameConverter;
import java.io.Serializable;
import java.util.Set;
/**
* Realizes a property as an untyped {@link List}.
*
*
* List getXXX();
*
*
* Default value handling
*
* Since unmarshaller just adds new values into the storage,
* we can't fill the storage by default values at the time of
* instanciation. (or oherwise values found in the document will
* be appended to default values, where it should overwrite them.)
*
* Therefore, when the object is created, the storage will be empty.
* When the getXXX method is called, we'll check if the storage is
* modified in anyway. If it is modified, it must mean that the values
* are found in the document, so we just return it.
*
* Otherwise we will fill in default values and return it to the user.
*
*
* When a list has default values, its dirty flag is set to true.
* Marshaller will check this and treat it appropriately.
*
*
* @author
* Kohsuke Kawaguchi ([email protected])
*/
public class NoExtendedContentField extends AbstractListField {
/**
* A concrete class that implements the List interface.
* An instance of this class will be used to store data
* for this field.
*/
private final JClass coreList;
/** List getFIELD() method. */
private JMethod $get;
/**
* @param coreList
* A concrete class that implements the List interface.
* An instance of this class will be used to store data
* for this field.
*/
protected NoExtendedContentField(ClassOutlineImpl context, CPropertyInfo prop, JClass coreList) {
// the JAXB runtime picks ArrayList if the signature is List,
// so don't do eager allocation if it's ArrayList.
// otherwise we need to do eager allocation so that the collection type specified by the user
// will be used.
super(context, prop, false);
this.coreList = coreList;
generate();
}
protected final JClass getCoreListType() {
return coreList;
}
@Override
public void generateAccessors() {
final MethodWriter writer = outline.createMethodWriter();
final Accessor acc = create(JExpr._this());
// [RESULT]
// List getXXX() {
// return ;
// }
$get = writer.declareMethod(listT,"get"+prop.getName(true));
writer.javadoc().append(prop.javadoc);
JBlock block = $get.body();
fixNullRef(block); // avoid using an internal getter
block._return(acc.ref(true));
String pname = NameConverter.standard.toVariableName(prop.getName(true));
writer.javadoc().append(
"Gets the value of the "+pname+" property.\n\n"+
"\n" +
"This accessor method returns a reference to the live list,\n" +
"not a snapshot. Therefore any modification you make to the\n" +
"returned list will be present inside the JAXB object.\n" +
"This is why there is not a set method for the " +pname+ " property.\n" +
"\n"+
"
\n" +
"For example, to add a new item, do as follows:\n"+
"
\n"+
" get"+prop.getName(true)+"().add(newItem);\n"+
"\n"+
"\n\n"
);
writer.javadoc().append(
"\n" +
"Objects of the following type(s) are allowed in the list\n")
.append(listPossibleTypes(prop));
}
public Accessor create(JExpression targetObject) {
return new Accessor(targetObject);
}
class Accessor extends AbstractListField.Accessor {
protected Accessor( JExpression $target ) {
super($target);
}
public void toRawValue(JBlock block, JVar $var) {
// [RESULT]
// $.addAll(bean.getLIST());
// list.toArray( array );
block.assign($var,JExpr._new(codeModel.ref(ArrayList.class).narrow(getType(Aspect.EXPOSED).boxify())).arg(
$target.invoke($get)
));
}
public void fromRawValue(JBlock block, String uniqueName, JExpression $var) {
// [RESULT]
// bean.getLIST().addAll($);
JVar $list = block.decl(listT,uniqueName+'l',$target.invoke($get));
block.invoke($list,"addAll").arg($var);
}
}
@Override
protected JType getType(final Aspect aspect) {
if (Aspect.IMPLEMENTATION.equals(aspect)) {
return super.getType(aspect);
}
if (prop instanceof CReferencePropertyInfo) {
Set elements = ((CReferencePropertyInfo)prop).getElements();
if ((elements != null) && (elements.size() > 0)) {
return codeModel.ref(Serializable.class);
}
}
return codeModel.ref(String.class);
}
}