Example usage for com.google.gwt.core.ext.typeinfo JParameterizedType isAssignableTo

Introduction

In this page you can find the example usage for com.google.gwt.core.ext.typeinfo JParameterizedType isAssignableTo.

Prototype

boolean isAssignableTo(JClassType possibleSupertype);

Source Link

Document

Returns true if this JClassType is assignable to the specified JClassType parameter.

Usage

From source file:com.google.web.bindery.autobean.gwt.rebind.model.AutoBeanFactoryModel.java

License:Apache License

private boolean methodAcceptsAutoBeanAsFirstParam(JClassType beanType, JMethod method) {
    JParameter[] params = method.getParameters();
    if (params.length == 0) {
        return false;
    }//from  www  .  j  av  a 2s  . co  m
    JClassType paramAsClass = params[0].getType().isClassOrInterface();

    // First parameter is a primitive
    if (paramAsClass == null) {
        return false;
    }

    // Check using base types to account for erasure semantics
    JParameterizedType expectedFirst = oracle.getParameterizedType(autoBeanInterface,
            new JClassType[] { ModelUtils.ensureBaseType(beanType) });
    return expectedFirst.isAssignableTo(paramAsClass);
}

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From source file:com.hiramchirino.restygwt.rebind.JsonEncoderDecoderInstanceLocator.java

License:Apache License

private String encodeDecodeExpression(JType type, String expression, Style style, String encoderMethod,
        String mapMethod, String setMethod, String listMethod) throws UnableToCompleteException {

    if (null != type.isEnum()) {
        return type.getQualifiedSourceName() + ".valueOf(" + encodeDecodeExpression(STRING_TYPE, expression,
                style, encoderMethod, mapMethod, setMethod, listMethod);
    }/*from ww w.  ja  va2  s  .co  m*/

    String encoderDecoder = getEncoderDecoder(type, logger);
    if (encoderDecoder != null) {
        return encoderDecoder + "." + encoderMethod + "(" + expression + ")";
    }

    JClassType clazz = type.isClassOrInterface();
    if (isCollectionType(clazz)) {
        JParameterizedType parameterizedType = type.isParameterized();
        if (parameterizedType == null || parameterizedType.getTypeArgs() == null) {
            error("Collection types must be parameterized.");
        }
        JClassType[] types = parameterizedType.getTypeArgs();

        if (parameterizedType.isAssignableTo(MAP_TYPE)) {
            if (types.length != 2) {
                error("Map must define two and only two type parameters");
            }
            if (types[0] != STRING_TYPE) {
                error("Map's first type parameter must be of type String");
            }
            encoderDecoder = getEncoderDecoder(types[1], logger);
            if (encoderDecoder != null) {
                return mapMethod + "(" + expression + ", " + encoderDecoder + ", " + JSON_CLASS + ".Style."
                        + style.name() + ")";
            }
        } else if (parameterizedType.isAssignableTo(SET_TYPE)) {
            if (types.length != 1) {
                error("Set must define one and only one type parameter");
            }
            encoderDecoder = getEncoderDecoder(types[0], logger);
            if (encoderDecoder != null) {
                return setMethod + "(" + expression + ", " + encoderDecoder + ")";
            }
        } else if (parameterizedType.isAssignableFrom(LIST_TYPE)) {
            if (types.length != 1) {
                error("List must define one and only one type parameter");
            }
            encoderDecoder = getEncoderDecoder(types[0], logger);
            debug("type encoder for: " + types[0] + " is " + encoderDecoder);
            if (encoderDecoder != null) {
                return listMethod + "(" + expression + ", " + encoderDecoder + ")";
            }
        }
    }

    error("Do not know how to encode/decode " + type);
    return null;
}

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From source file:com.seanchenxi.gwt.storage.rebind.StorageKeyProviderModel.java

License:Apache License

private boolean validateMethodDef(JMethod method) throws UnableToCompleteException {
    if (!method.getEnclosingType().equals(providerType)) {
        return false;
    }//www .ja  v  a 2 s  .c  o  m
    JParameterizedType returnType = method.getReturnType().isParameterized();
    boolean isCorrectReturnType = returnType != null && returnType.isAssignableTo(storageKeyGenericType);
    JClassType valueType = isCorrectReturnType ? returnType.getTypeArgs()[0] : null;
    if (!isValideType(valueType)) {
        logger.branch(TreeLogger.Type.ERROR, "method " + method.getReadableDeclaration()
                + "'s returned store type is not extends to IsSerializable nor Serializable");
        throw new UnableToCompleteException();
    }

    int length = method.getParameters().length;
    if (length > 1) {
        logger.branch(TreeLogger.Type.WARN,
                "method " + method.getReadableDeclaration() + " should only have one or zero parameter");
        throw new UnableToCompleteException();
    }
    return true;
}

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From source file:org.fusesource.restygwt.rebind.JsonEncoderDecoderInstanceLocator.java

License:Apache License

private String encodeDecodeExpression(JType type, String expression, Style style, String encoderMethod,
        String mapMethod, String setMethod, String listMethod) throws UnableToCompleteException {

    if (null != type.isEnum()) {
        if (encoderMethod.equals("encode")) {
            return encodeDecodeExpression(STRING_TYPE, expression + ".toString()", style, encoderMethod,
                    mapMethod, setMethod, listMethod);
        } else {/*from   w ww .ja v a  2s.  co  m*/
            return type.getQualifiedSourceName() + ".valueOf(" + encodeDecodeExpression(STRING_TYPE, expression,
                    style, encoderMethod, mapMethod, setMethod, listMethod) + ")";
        }
    }

    String encoderDecoder = getEncoderDecoder(type, logger);
    if (encoderDecoder != null) {
        return encoderDecoder + "." + encoderMethod + "(" + expression + ")";
    }

    JClassType clazz = type.isClassOrInterface();
    if (isCollectionType(clazz)) {
        JParameterizedType parameterizedType = type.isParameterized();
        if (parameterizedType == null || parameterizedType.getTypeArgs() == null) {
            error("Collection types must be parameterized.");
        }
        JClassType[] types = parameterizedType.getTypeArgs();

        if (parameterizedType.isAssignableTo(MAP_TYPE)) {
            if (types.length != 2) {
                error("Map must define two and only two type parameters");
            }
            if (types[0] != STRING_TYPE) {
                error("Map's first type parameter must be of type String");
            }
            encoderDecoder = getEncoderDecoder(types[1], logger);
            if (encoderDecoder != null) {
                return mapMethod + "(" + expression + ", " + encoderDecoder + ", " + JSON_CLASS + ".Style."
                        + style.name() + ")";
            }
        } else if (parameterizedType.isAssignableTo(SET_TYPE)) {
            if (types.length != 1) {
                error("Set must define one and only one type parameter");
            }
            encoderDecoder = getEncoderDecoder(types[0], logger);
            if (encoderDecoder != null) {
                return setMethod + "(" + expression + ", " + encoderDecoder + ")";
            }
        } else if (parameterizedType.isAssignableFrom(LIST_TYPE)) {
            if (types.length != 1) {
                error("List must define one and only one type parameter");
            }
            encoderDecoder = getEncoderDecoder(types[0], logger);
            debug("type encoder for: " + types[0] + " is " + encoderDecoder);
            if (encoderDecoder != null) {
                return listMethod + "(" + expression + ", " + encoderDecoder + ")";
            }
        }
    }

    error("Do not know how to encode/decode " + type);
    return null;
}

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