com.sun.tools.xjc.model.CPropertyInfo Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2021 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.model;
import java.lang.annotation.Annotation;
import java.util.Collection;
import java.util.Map;
import javax.xml.XMLConstants;
import javax.xml.bind.annotation.XmlInlineBinaryData;
import javax.xml.bind.annotation.XmlSchemaType;
import javax.xml.bind.annotation.XmlTransient;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
import javax.xml.namespace.QName;
import com.sun.codemodel.JClass;
import com.sun.codemodel.JJavaName;
import com.sun.codemodel.JType;
import com.sun.tools.xjc.Plugin;
import com.sun.tools.xjc.generator.bean.field.FieldRenderer;
import com.sun.tools.xjc.model.nav.NClass;
import com.sun.tools.xjc.model.nav.NType;
import com.sun.tools.xjc.reader.Ring;
import com.sun.xml.bind.api.impl.NameConverter;
import com.sun.xml.bind.v2.model.core.PropertyInfo;
import com.sun.xml.bind.v2.runtime.RuntimeUtil;
import com.sun.xml.xsom.XSComponent;
import org.xml.sax.ErrorHandler;
import org.xml.sax.Locator;
/**
* Model of a property to be generated.
*
* @author Kohsuke Kawaguchi
*/
public abstract class CPropertyInfo implements PropertyInfo, CCustomizable {
@XmlTransient
private CClassInfo parent;
private String privateName;
private String publicName;
private final boolean isCollection;
@XmlTransient
public final Locator locator;
/**
* @see #getSchemaComponent()
*/
private final XSComponent source;
/**
* If the base type of the property is overriden,
* this field is set to non-null.
*/
public JType baseType;
/**
* Javadoc for this property. Must not be null.
*/
public String javadoc="";
/**
* Property annotated with {@link javax.xml.bind.annotation.XmlInlineBinaryData}.
*/
public boolean inlineBinaryData;
/**
* Specifies how the field is generated by the backend.
*/
@XmlJavaTypeAdapter(RuntimeUtil.ToStringAdapter.class)
public FieldRenderer realization;
/**
* If non-null, keeps the default value in Java representation.
*
* If {@link #isCollection} is true, this field is always null,
* for we don't handle default values for a list.
*/
public CDefaultValue defaultValue;
private final CCustomizations customizations;
protected CPropertyInfo(String name, boolean collection, XSComponent source,
CCustomizations customizations, Locator locator) {
this.publicName = name;
String n = null;
Model m = Ring.get(Model.class);
if (m != null) {
n = m.getNameConverter().toVariableName(name);
} else {
n = NameConverter.standard.toVariableName(name);
}
if(!JJavaName.isJavaIdentifier(n))
n = '_'+n; // avoid colliding with the reserved names like 'abstract'.
this.privateName = n;
this.isCollection = collection;
this.locator = locator;
if(customizations==null)
this.customizations = CCustomizations.EMPTY;
else
this.customizations = customizations;
this.source = source;
}
// called from CClassInfo when added
final void setParent( CClassInfo parent ) {
assert this.parent==null;
assert parent!=null;
this.parent = parent;
customizations.setParent(parent.model,this);
}
public CTypeInfo parent() {
return parent;
}
public Locator getLocator() {
return locator;
}
/**
* If this model object is built from XML Schema,
* this property returns a schema component from which the model is built.
*
* @return
* null if the model is built from sources other than XML Schema
* (such as DTD.)
*/
public final XSComponent getSchemaComponent() {
return source;
}
public abstract CAdapter getAdapter();
/**
* Name of the property.
*
*
* This method is implemented to follow the contract of
* {@link PropertyInfo#getName()}, and therefore it always
* returns the name of the annotated field.
*
* This name is normally not useful for the rest of XJC,
* which usually wants to access the "public name" of the property.
* A "public name" of the property is a name like "FooBar" which
* is used as a seed for generating the accessor methods.
* This is the name controlled by the schema customization via users.
*
*
* If the caller is calling this method statically, it's usually
* the sign of a mistake. Use {@link #getName(boolean)} method instead,
* which forces you to think about which name you want to get.
*
* @deprecated
* marked as deprecated so that we can spot the use of this method.
*
* @see #getName(boolean)
*/
public String getName() {
return getName(false);
}
/**
* Gets the name of the property.
*
* @param isPublic
* if true, this method returns a name like "FooBar", which
* should be used as a seed for generating user-visible names
* (such as accessors like "getFooBar".)
*
*
* if false, this method returns the "name of the property"
* as defined in the j2s side of the spec. This name is usually
* something like "fooBar", which often corresponds to the XML
* element/attribute name of this property (for taking advantage
* of annotation defaulting as much as possible)
*/
public String getName(boolean isPublic) {
return isPublic?publicName:privateName;
}
/**
* Overrides the name of the property.
*
* This method can be used from {@link Plugin#postProcessModel(Model, ErrorHandler)}.
* But the caller should do so with the understanding that this is inherently
* dangerous method.
*/
public void setName(boolean isPublic, String newName) {
if(isPublic)
publicName = newName;
else
privateName = newName;
}
public String displayName() {
return parent.toString()+'#'+getName(false);
}
public boolean isCollection() {
return isCollection;
}
public abstract Collection ref();
/**
* Returns true if this property is "unboxable".
*
*
* In general, a property often has to be capable of representing null
* to indicate the absence of the value. This requires properties
* to be generated as {@code @XmlElement Float f}, not as
* {@code @XmlElement float f;}. But this is slow.
*
*
* Fortunately, there are cases where we know that the property can
* never legally be absent. When this condition holds we can generate
* the optimized "unboxed form".
*
*
* The exact such conditions depend
* on the kind of properties, so refer to the implementation code
* for the details.
*
*
* This method returns true when the property can be generated
* as "unboxed form", false otherwise.
*
*
* When this property is a collection, this method returns true
* if items in the collection is unboxable. Obviously, the collection
* itself is always a reference type.
*/
public boolean isUnboxable() {
Collection ts = ref();
if(ts.size()!=1)
// if the property is heterogeneous, no way.
// ts.size()==0 is a special case that can happen for wildcards.
return false;
if(baseType!=null && (baseType instanceof JClass))
return false;
CTypeInfo t = ts.iterator().next();
// only a primitive type is eligible.
return t.getType().isBoxedType();
}
/**
* Returns true if this property needs to represent null
* just for the purpose of representing an absence of the property.
*/
public boolean isOptionalPrimitive() {
return false;
}
public CCustomizations getCustomizations() {
return customizations;
}
public boolean inlineBinaryData() {
return inlineBinaryData;
}
public abstract V accept( CPropertyVisitor visitor );
public abstract R accept( CPropertyVisitor2 visitor, P p );
/**
* Checks if the given {@link TypeUse} would need an explicit {@link XmlSchemaType}
* annotation with the given type name.
*/
protected static boolean needsExplicitTypeName(TypeUse type, QName typeName) {
if(typeName==null)
// this is anonymous type. can't have @XmlSchemaType
return false;
if(!XMLConstants.W3C_XML_SCHEMA_NS_URI.equals(typeName.getNamespaceURI()))
// if we put application-defined type name, it will be undefined
// by the time we generate a schema.
return false;
if(type.isCollection())
// there's no built-in binding for a list simple type,
// so any collection type always need @XmlSchemaType
return true;
QName itemType = type.getInfo().getTypeName();
if(itemType==null)
// this is somewhat strange case, as it means the bound type is anonymous
// but it's eventually derived by a named type and used.
// but we can certainly use typeName as @XmlSchemaType value here
return true;
// if it's the default type name for this item, then no need
return !itemType.equals(typeName);
}
/**
* Puts the element names that this property possesses to the map,
* so that we can find two properties that own the same element name,
* which is an error.
*
* @return
* null if no conflict was found. Otherwise return the QName that has the collision.
*/
public QName collectElementNames(Map table) {
return null;
}
public final A readAnnotation(Class annotationType) {
throw new UnsupportedOperationException();
}
public final boolean hasAnnotation(Class annotationType) {
throw new UnsupportedOperationException();
}
}