Examples of com.sun.tools.xjc.generator.bean.MethodWriter

Package com.sun.tools.xjc.generator.bean

Examples of com.sun.tools.xjc.generator.bean.MethodWriter

com.sun.tools.xjc.generator.bean.MethodWriter
The back-end may or may not generate the content interface separately from the implementation class. If so, a method needs to be declared on both the interface and the implementation class.
This class hides those details and allow callers to declare methods just once. @author Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)

     *        be correctly encoded by {@link java.beans.XMLEncoder}
     *        based routines
     */
    private void declareMethod(ClassOutlineImpl context, SingleField field){
        
        MethodWriter writer = context.createMethodWriter();
        Map <String,JFieldVar> fields = null;
        NameConverter nc = context.parent().getModel().getNameConverter();
        
        outline = context;
        codeModel = context.parent().getCodeModel();
        prop = field.getPropertyInfo();


        // Retrieve the Map that contains the field name
        // and the correspondind JFieldVar
        fields = outline.implClass.fields();
        
        // Obtains a reference to the collection-based field
        this.field = fields.get(field.getPropertyInfo().getName(false));
        
        // Creates the method
        JMethod $set = writer.declareMethod(this.field.type(), "get" + prop.getName(true));
        // Creates the JVar that will hold the method's parameter
        //JVar $value = writer.addParameter( this.field.type(), prop.getName(false));
        // Creates the methods's JBlock
        JBlock body = $set.body();
        // Creates the assignment (method parameter to instance variable)

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    }
    
    
    private void generate( ClassOutlineImpl outline, CPropertyInfo prop ) {
        // add isSetXXX and unsetXXX.
        MethodWriter writer = outline.createMethodWriter();
        
        JCodeModel codeModel = outline.parent().getCodeModel();
        
        FieldAccessor acc = core.create(JExpr._this());
        
        if( generateIsSetMethod ) {
            // [RESULT] boolean isSetXXX()
            JExpression hasSetValue = acc.hasSetValue();
            if( hasSetValue==null ) {
                // this field renderer doesn't support the isSet/unset methods generation.
                // issue an error
                throw new UnsupportedOperationException();
            }
            writer.declareMethod(codeModel.BOOLEAN,"isSet"+this.prop.getName(true))
                .body()._return( hasSetValue );
        }
        
        if( generateUnSetMethod ) {
            // [RESULT] void unsetXXX()
            acc.unsetValues(
                writer.declareMethod(codeModel.VOID,"unset"+this.prop.getName(true)).body() );
        }
    }

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        super(context, prop);
        assert !exposedType.isPrimitive() && !implType.isPrimitive();
        
        createField();
        
        MethodWriter writer = context.createMethodWriter();
        NameConverter nc = context.parent().getModel().getNameConverter();


        // [RESULT]
        // Type getXXX() {
        // #ifdef default value
        //     if(value==null)
        //         return defaultValue;
        // #endif
        //     return value;
        // }
        JExpression defaultValue = null;
        if(prop.defaultValue!=null)
            defaultValue = prop.defaultValue.compute(outline.parent());


        // if Type is a wrapper and we have a default value,
        // we can use the primitive type.
        JType getterType;
        if(defaultValue!=null || forcePrimitiveAccess)
            getterType = exposedType.unboxify();
        else
            getterType = exposedType;


        JMethod $get = writer.declareMethod( getterType,getGetterMethod() );
        String javadoc = prop.javadoc;
        if(javadoc.length()==0)
            javadoc = Messages.DEFAULT_GETTER_JAVADOC.format(nc.toVariableName(prop.getName(true)));
        writer.javadoc().append(javadoc);




        if(defaultValue==null) {
            $get.body()._return(ref());
        } else {
            JConditional cond = $get.body()._if(ref().eq(JExpr._null()));
            cond._then()._return(defaultValue);
            cond._else()._return(ref());
        }


        List<Object> possibleTypes = listPossibleTypes(prop);
        writer.javadoc().addReturn()
            .append("possible object is\n")
            .append(possibleTypes);
         
        // [RESULT]
        // void setXXX(Type newVal) {
        //     this.value = newVal;
        // }
        JMethod $set = writer.declareMethod( codeModel.VOID, "set"+prop.getName(true) );
        JType setterType = exposedType;
        if(forcePrimitiveAccess)    setterType = setterType.unboxify();
        JVar $value = writer.addParameter( setterType, "value" );
        JBlock body = $set.body();
        body.assign(JExpr._this().ref(ref()),castToImplType($value));


        // setter always get the default javadoc. See issue #381
        writer.javadoc().append(Messages.DEFAULT_SETTER_JAVADOC.format(nc.toVariableName(prop.getName(true))));
        writer.javadoc().addParam($value)
            .append("allowed object is\n")
            .append(possibleTypes);
    }

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        return coreList;
    }


    @Override
    public void generateAccessors() {
        final MethodWriter writer = outline.createMethodWriter();
        final Accessor acc = create(JExpr._this());


        // [RESULT]
        // List getXXX() {
        //     return <ref>;
        // }
        $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"+
            "<p>\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 <CODE>set</CODE> method for the " +pname+ " property.\n" +
            "\n"+
            "<p>\n" +
            "For example, to add a new item, do as follows:\n"+
            "<pre>\n"+
            "   get"+prop.getName(true)+"().add(newItem);\n"+
            "</pre>\n"+
            "\n\n"
        );


        writer.javadoc().append(
            "<p>\n" +
            "Objects of the following type(s) are allowed in the list\n")
            .append(listPossibleTypes(prop));
    }

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        // apparently a required attribute can be still defaulted.
        // so this assertion is incorrect.
        // assert prop.defaultValue==null;


        MethodWriter writer = outline.createMethodWriter();
        NameConverter nc = outline.parent().getModel().getNameConverter();


        JBlock body;
        
        // [RESULT]
        // Type getXXX() {
        //     return value;
        // }
        JMethod $get = writer.declareMethod( ptype, getGetterMethod() );
        String javadoc = prop.javadoc;
        if(javadoc.length()==0)
            javadoc = Messages.DEFAULT_GETTER_JAVADOC.format(nc.toVariableName(prop.getName(true)));
        writer.javadoc().append(javadoc);


        $get.body()._return(ref());




        // [RESULT]
        // void setXXX( Type value ) {
        //     this.value = value;
        // }
        JMethod $set = writer.declareMethod( codeModel.VOID, "set"+prop.getName(true) );
        JVar $value = writer.addParameter( ptype, "value" );
        body = $set.body();
        body.assign(JExpr._this().ref(ref()),$value);
        // setter always get the default javadoc. See issue #381
        writer.javadoc().append(Messages.DEFAULT_SETTER_JAVADOC.format(nc.toVariableName(prop.getName(true))));


    }

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        return coreList;
    }


    @Override
    public void generateAccessors() {
        final MethodWriter writer = outline.createMethodWriter();
        final Accessor acc = create(JExpr._this());


        // [RESULT]
        // List getXXX() {
        //     return <ref>;
        // }
        $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"+
            "<p>\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 <CODE>set</CODE> method for the " +pname+ " property.\n" +
            "\n"+
            "<p>\n" +
            "For example, to add a new item, do as follows:\n"+
            "<pre>\n"+
            "   get"+prop.getName(true)+"().add(newItem);\n"+
            "</pre>\n"+
            "\n\n"
        );


        writer.javadoc().append(
            "<p>\n" +
            "Objects of the following type(s) are allowed in the list\n")
            .append(listPossibleTypes(prop));
    }

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        return coreList;
    }


    @Override
    public void generateAccessors() {
        final MethodWriter writer = outline.createMethodWriter();
        final Accessor acc = create(JExpr._this());


        // [RESULT]
        // List getXXX() {
        //     return <ref>;
        // }
        $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"+
            "<p>\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 <CODE>set</CODE> method for the " +pname+ " property.\n" +
            "\n"+
            "<p>\n" +
            "For example, to add a new item, do as follows:\n"+
            "<pre>\n"+
            "   get"+prop.getName(true)+"().add(newItem);\n"+
            "</pre>\n"+
            "\n\n"
        );


        writer.javadoc().append(
            "<p>\n" +
            "Objects of the following type(s) are allowed in the list\n")
            .append(listPossibleTypes(prop));
    }

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        generateAccessors();
    }
    
    public void generateAccessors() {
        
        MethodWriter writer = outline.createMethodWriter();
        Accessor acc = create(JExpr._this());
        JVar $idx,$value; JBlock body;


        // [RESULT] T[] getX() {
        //     if( <var>==null )    return new T[0];
        //     T[] retVal = new T[this._return.length] ;
        //     System.arraycopy(this._return, 0, "retVal", 0, this._return.length);
        //     return (retVal);
        // }
        $getAll = writer.declareMethod( exposedType.array(),"get"+prop.getName(true));
        writer.javadoc().append(prop.javadoc);
        body = $getAll.body();


        body._if( acc.ref(true).eq(JExpr._null()) )._then()
            ._return(JExpr.newArray(exposedType,0));
        JVar var = body.decl(exposedType.array(), "retVal", JExpr.newArray(implType,acc.ref(true).ref("length")));
        body.add(codeModel.ref(System.class).staticInvoke("arraycopy")
                        .arg(acc.ref(true)).arg(JExpr.lit(0))
                        .arg(var)
                        .arg(JExpr.lit(0)).arg(acc.ref(true).ref("length")));
        body._return(JExpr.direct("retVal"));


        List<Object> returnTypes = listPossibleTypes(prop);
        writer.javadoc().addReturn().append("array of\n").append(returnTypes);


        // [RESULT]
        // ET getX(int idx) {
        //     if( <var>==null )    throw new IndexOutOfBoundsException();
        //     return unbox(<var>.get(idx));
        // }
        JMethod $get = writer.declareMethod(exposedType,"get"+prop.getName(true));
        $idx = writer.addParameter(codeModel.INT,"idx");


        $get.body()._if(acc.ref(true).eq(JExpr._null()))._then()
            ._throw(JExpr._new(codeModel.ref(IndexOutOfBoundsException.class)));


        writer.javadoc().append(prop.javadoc);
        $get.body()._return(acc.ref(true).component($idx));


        writer.javadoc().addReturn().append("one of\n").append(returnTypes);


        // [RESULT] int getXLength() {
        //     if( <var>==null )    throw new IndexOutOfBoundsException();
        //     return <ref>.length;
        // }
        JMethod $getLength = writer.declareMethod(codeModel.INT,"get"+prop.getName(true)+"Length");
        $getLength.body()._if(acc.ref(true).eq(JExpr._null()))._then()
                ._return(JExpr.lit(0));
        $getLength.body()._return(acc.ref(true).ref("length"));


        // [RESULT] void setX(ET[] values) {
        //     int len = values.length;
        //     for( int i=0; i<len; i++ )
        //         <ref>[i] = values[i];
        // }
        $setAll = writer.declareMethod(
            codeModel.VOID,
            "set"+prop.getName(true));


        writer.javadoc().append(prop.javadoc);
        $value = writer.addParameter(exposedType.array(),"values");
        JVar $len = $setAll.body().decl(codeModel.INT,"len", $value.ref("length"));


        $setAll.body().assign(
                (JAssignmentTarget) acc.ref(true),
                castToImplTypeArray(JExpr.newArray(
                    codeModel.ref(exposedType.erasure().fullName()),
                    $len)));


        JForLoop _for = $setAll.body()._for();
        JVar $i = _for.init( codeModel.INT, "i", JExpr.lit(0) );
        _for.test( JOp.lt($i,$len) );
        _for.update( $i.incr() );
        _for.body().assign(acc.ref(true).component($i), castToImplType(acc.box($value.component($i))));


        writer.javadoc().addParam($value)
            .append("allowed objects are\n")
            .append(returnTypes);


        // [RESULT] ET setX(int idx, ET value)
        // <ref>[idx] = value
        JMethod $set = writer.declareMethod(
            exposedType,
            "set"+prop.getName(true));
        $idx = writer.addParameter( codeModel.INT, "idx" );
        $value = writer.addParameter( exposedType, "value" );


        writer.javadoc().append(prop.javadoc);


        body = $set.body();
        body._return( JExpr.assign(acc.ref(true).component($idx),
                                   castToImplType(acc.box($value))));


        writer.javadoc().addParam($value)
            .append("allowed object is\n")
            .append(returnTypes);
            
    }

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        generate();
    }
    
    public void generateAccessors() {
        
        MethodWriter writer = outline.createMethodWriter();
        Accessor acc = create(JExpr._this());
        
        JVar $idx,$value; JBlock body;
        JType arrayType = exposedType.array();
        
        // [RESULT] T[] getX() {
        //     if( <var>==null )    return new T[0];
        //     return (T[]) <var>.toArray(new T[<var>.size()]);
        // }
        $getAll = writer.declareMethod( exposedType.array(),"get"+prop.getName(true));
        writer.javadoc().append(prop.javadoc);
        body = $getAll.body();


        body._if( acc.ref(true).eq(JExpr._null()) )._then()
            ._return(JExpr.newArray(exposedType,0));


        if(primitiveType==null) {
            body._return(JExpr.cast(arrayType,
                acc.ref(true).invoke("toArray").arg( JExpr.newArray(implType,acc.ref(true).invoke("size")) )));
        } else {
            // need to copy them manually to unbox values
            // [RESULT]
            // T[] r = new T[<ref>.size()];
            // for( int i=0; i<r.length; i++ )
            //     r[i] = unbox(<ref>.get(i));
            JVar $r = body.decl(exposedType.array(),"r",JExpr.newArray(exposedType, acc.ref(true).invoke("size")));
            JForLoop loop = body._for();
            JVar $i = loop.init(codeModel.INT,"__i",JExpr.lit(0));
            loop.test($i.lt($r.ref("length")));
            loop.update($i.incr());
            loop.body().assign( $r.component($i),
                primitiveType.unwrap(acc.ref(true).invoke("get").arg($i)) );
            body._return($r);
        }


        List<Object> returnTypes = listPossibleTypes(prop);
        writer.javadoc().addReturn().append("array of\n").append(returnTypes);
                        
        // [RESULT]
        // ET getX(int idx) {
        //     if( <var>==null )    throw new IndexOutOfBoundsException();
        //     return unbox(<var>.get(idx));
        // }
        JMethod $get = writer.declareMethod(exposedType,"get"+prop.getName(true));
        $idx = writer.addParameter(codeModel.INT,"idx");


        $get.body()._if(acc.ref(true).eq(JExpr._null()))._then()
            ._throw(JExpr._new(codeModel.ref(IndexOutOfBoundsException.class)));


        writer.javadoc().append(prop.javadoc);
        $get.body()._return(acc.unbox(acc.ref(true).invoke("get").arg($idx) ));


        writer.javadoc().addReturn().append("one of\n").append(returnTypes);


                        
        // [RESULT] int getXLength() {
        //     if( <var>==null )    throw new IndexOutOfBoundsException();
        //     return <ref>.size();
        // }
        JMethod $getLength = writer.declareMethod(codeModel.INT,"get"+prop.getName(true)+"Length");
        $getLength.body()._if(acc.ref(true).eq(JExpr._null()))._then()
                ._return(JExpr.lit(0));
        $getLength.body()._return(acc.ref(true).invoke("size"));
        
                        
        // [RESULT] void setX(ET[] values) {
        //     clear();
        //     int len = values.length;
        //     for( int i=0; i<len; i++ )
        //         <ref>.add(values[i]);
        // }
        $setAll = writer.declareMethod(
            codeModel.VOID,
            "set"+prop.getName(true));
        
        writer.javadoc().append(prop.javadoc);
        
        $value = writer.addParameter(exposedType.array(),"values");
        $setAll.body().invoke(acc.ref(false),"clear");
        JVar $len = $setAll.body().decl(codeModel.INT,"len", $value.ref("length"));
        JForLoop _for = $setAll.body()._for();
        JVar $i = _for.init( codeModel.INT, "i", JExpr.lit(0) );
        _for.test( JOp.lt($i,$len) );
        _for.update( $i.incr() );
        _for.body().invoke(acc.ref(true),"add").arg(castToImplType(acc.box($value.component($i))));


        writer.javadoc().addParam($value)
            .append("allowed objects are\n")
            .append(returnTypes);
                        
        // [RESULT] ET setX(int,ET)
        JMethod $set = writer.declareMethod(
            exposedType,
            "set"+prop.getName(true));
        $idx = writer.addParameter( codeModel.INT, "idx" );
        $value = writer.addParameter( exposedType, "value" );


        writer.javadoc().append(prop.javadoc);
                        
        body = $set.body();
        body._return( acc.unbox(
            acc.ref(true).invoke("set").arg($idx).arg(castToImplType(acc.box($value)))));


        writer.javadoc().addParam($value)
            .append("allowed object is\n")
            .append(returnTypes);
    }

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        // apparently a required attribute can be still defaulted.
        // so this assertion is incorrect.
        // assert prop.defaultValue==null;


        MethodWriter writer = outline.createMethodWriter();
        NameConverter nc = outline.parent().getModel().getNameConverter();


        JBlock body;
        
        // [RESULT]
        // Type getXXX() {
        //     return value;
        // }
        JMethod $get = writer.declareMethod( ptype, getGetterMethod() );
        String javadoc = prop.javadoc;
        if(javadoc.length()==0)
            javadoc = Messages.DEFAULT_GETTER_JAVADOC.format(nc.toVariableName(prop.getName(true)));
        writer.javadoc().append(javadoc);


        $get.body()._return(ref());




        // [RESULT]
        // void setXXX( Type value ) {
        //     this.value = value;
        // }
        JMethod $set = writer.declareMethod( codeModel.VOID, "set"+prop.getName(true) );
        JVar $value = writer.addParameter( ptype, "value" );
        body = $set.body();
        body.assign(JExpr._this().ref(ref()),$value);
        // setter always get the default javadoc. See issue #381
        writer.javadoc().append(Messages.DEFAULT_SETTER_JAVADOC.format(nc.toVariableName(prop.getName(true))));


    }

View Full Code Here

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