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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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package com.sun.tools.internal.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.internal.JClass;
import com.sun.codemodel.internal.JJavaName;
import com.sun.codemodel.internal.JType;
import com.sun.tools.internal.xjc.Plugin;
import com.sun.tools.internal.xjc.generator.bean.field.FieldRenderer;
import com.sun.tools.internal.xjc.model.nav.NClass;
import com.sun.tools.internal.xjc.model.nav.NType;
import com.sun.tools.internal.xjc.reader.Ring;
import com.sun.xml.internal.bind.api.impl.NameConverter;
import com.sun.xml.internal.bind.v2.model.core.PropertyInfo;
import com.sun.xml.internal.bind.v2.runtime.RuntimeUtil;
import com.sun.xml.internal.xsom.XSComponent;

import org.xml.sax.ErrorHandler;
import org.xml.sax.Locator;


Model of a property to be generated.

Author:Kohsuke Kawaguchi
/**
 * Model of a property to be generated.
 *
 * @author Kohsuke Kawaguchi
 */
public abstract class CPropertyInfo implements PropertyInfo<NType,NClass>, CCustomizable {

    @XmlTransient
    private CClassInfo parent;
    private String privateName;
    private String publicName;
    private final boolean isCollection;

    @XmlTransient
    public final Locator locator;

    
See Also:
  • getSchemaComponent()
/**
     * @see #getSchemaComponent()
     */
    private final XSComponent source;

    
If the base type of the property is overriden,
this field is set to non-null.

/**
     * 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.

/**
     * Javadoc for this property. Must not be null.
     */
    public String javadoc="";

    
Property annotated with XmlInlineBinaryData. 
/**
     * Property annotated with {@link javax.xml.bind.annotation.XmlInlineBinaryData}.
     */
    public boolean inlineBinaryData;

    
Specifies how the field is generated by the backend.

/**
     * 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 isCollection is true, this field is always null, for we don't handle default values for a list. 
/**
     * 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.

Returns:
     null if the model is built from sources other than XML Schema
     (such as DTD.)
/**
     * 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 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 getName(boolean) method instead, which forces you to think about which name you want to get. 
See Also:
Deprecated:
     marked as deprecated so that we can spot the use of this method.
/**
     * Name of the property.
     *
     * <p>
     * This method is implemented to follow the contract of
     * {@link PropertyInfo#getName()}, and therefore it always
     * returns the name of the annotated field.
     * <p>
     * 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.
     *
     * <p>
     * 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.

Params:
  • 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)
/**
     * 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".)
     *
     *      <p>
     *      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 Plugin.postProcessModel(Model, ErrorHandler). But the caller should do so with the understanding that this is inherently dangerous method. 
/**
     * 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<? extends CTypeInfo> 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 @XmlElement Float f, not as @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.

/**
     * Returns true if this property is "unboxable".
     *
     * <p>
     * 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.
     *
     * <p>
     * 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".
     *
     * <p>
     * The exact such conditions depend
     * on the kind of properties, so refer to the implementation code
     * for the details.
     *
     * <p>
     * This method returns true when the property can be generated
     * as "unboxed form", false otherwise.
     *
     * <p>
     * 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<? extends CTypeInfo> 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.

/**
     * 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> V accept( CPropertyVisitor<V> visitor );

    public abstract <R, P> R accept( CPropertyVisitor2<R, P> visitor, P p );

    
Checks if the given TypeUse would need an explicit XmlSchemaType annotation with the given type name. 
/**
     * 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.

Returns:
     null if no conflict was found. Otherwise return the QName that has the collision.
/**
     * 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<QName,CPropertyInfo> table) {
        return null;
    }

    public final <A extends Annotation> A readAnnotation(Class<A> annotationType) {
        throw new UnsupportedOperationException();
    }

    public final boolean hasAnnotation(Class<? extends Annotation> annotationType) {
        throw new UnsupportedOperationException();
    }
}