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Diffstat (limited to 'sca-java-1.x/tags/1.5.1-RC2/modules/interface/src/main/java/org/apache/tuscany/sca/interfacedef/DataType.java')
-rw-r--r-- | sca-java-1.x/tags/1.5.1-RC2/modules/interface/src/main/java/org/apache/tuscany/sca/interfacedef/DataType.java | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.5.1-RC2/modules/interface/src/main/java/org/apache/tuscany/sca/interfacedef/DataType.java b/sca-java-1.x/tags/1.5.1-RC2/modules/interface/src/main/java/org/apache/tuscany/sca/interfacedef/DataType.java new file mode 100644 index 0000000000..63e26ef7f7 --- /dev/null +++ b/sca-java-1.x/tags/1.5.1-RC2/modules/interface/src/main/java/org/apache/tuscany/sca/interfacedef/DataType.java @@ -0,0 +1,119 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.interfacedef; + +import java.lang.reflect.Type; + +/** + * Representation of the type of data associated with an operation. Data is + * represented in two forms: the physical form used by the runtime and a logical + * form used by the assembly. The physical form is a Java Type because the + * runtime is written in Java. This may be the same form used by the application + * but it may not; for example, an application that is performing stream + * processing may want a physical form such as an + * {@link java.io.InputStream InputStream} to semantically operate on application + * data such as a purchase order. The logical description is that used by the + * assembly model and is an identifier into some well-known type space; examples + * may be a Java type represented by its Class or an XML type represented by its + * QName. Every data type may also contain metadata describing the expected + * data; for example, it could specify a preferred data binding technology or + * the size of a typical instance. + * + * @version $Rev$ $Date$ + */ +public interface DataType<L> extends Cloneable { + /** + * Set the java type for the data + * @param cls + */ + void setPhysical(Class<?> cls); + + /** + * Returns the physical type used by the runtime. + * + * @return the physical type used by the runtime + */ + Class<?> getPhysical(); + + /** + * Get the java generic type + * @return The java generic type + */ + Type getGenericType(); + + /** + * Set the java generic type + * @param genericType + */ + void setGenericType(Type genericType); + + /** + * Returns the logical identifier used by the assembly. The type of this + * value identifies the logical type system in use. Known values are: + * <ul> + * <li>a Class identifies a Java type by name and + * ClassLoader; this includes Java Classes as they are specializations of + * Type</li> + * <li>a XMLType identifies an XML type by local name and + * namespace</li> + * </ul> + * + * @return the logical type name + */ + L getLogical(); + + /** + * Get the databinding for the given data type + * @return the databinding + */ + String getDataBinding(); + + /** + * Set the databinding for the given data type + * @param dataBinding the dataBinding to set + */ + void setDataBinding(String dataBinding); + + /** + * Clone a data type + * @return The cloned data type + * @throws CloneNotSupportedException + */ + Object clone() throws CloneNotSupportedException; + + /** + * Set the logical type of the data type + * @param logical the logical to set + */ + void setLogical(L logical); + + /** + * Get the databinding-specific metadata + * @param type The java type of the metadata + * @return the databinding-specific metadata + */ + <T> T getMetaData(Class<T> type); + /** + * Set the databinding-specific metadata + * @param type The java type of the metadata + * @param metaData the databinding-specific metadata, such as SDO's commonj.sdo.Type or + * JAXB's javax.xml.bind.JAXBContext + */ + <T> void setMetaData(Class<T> type, T metaData); +} |