356 lines
10 KiB
Java
356 lines
10 KiB
Java
/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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*
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* Copyright (c) 2009-2018 Oracle and/or its affiliates. All rights reserved.
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*
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* The contents of this file are subject to the terms of either the GNU
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* General Public License Version 2 only ("GPL") or the Common Development
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* and Distribution License("CDDL") (collectively, the "License"). You
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* may not use this file except in compliance with the License. You can
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* obtain a copy of the License at
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* https://oss.oracle.com/licenses/CDDL+GPL-1.1
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* or LICENSE.txt. See the License for the specific
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* language governing permissions and limitations under the License.
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*
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* When distributing the software, include this License Header Notice in each
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* file and include the License file at LICENSE.txt.
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*
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* GPL Classpath Exception:
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* Oracle designates this particular file as subject to the "Classpath"
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* exception as provided by Oracle in the GPL Version 2 section of the License
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* file that accompanied this code.
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*
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* Modifications:
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* If applicable, add the following below the License Header, with the fields
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* enclosed by brackets [] replaced by your own identifying information:
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* "Portions Copyright [year] [name of copyright owner]"
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*
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* Contributor(s):
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* If you wish your version of this file to be governed by only the CDDL or
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* only the GPL Version 2, indicate your decision by adding "[Contributor]
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* elects to include this software in this distribution under the [CDDL or GPL
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* Version 2] license." If you don't indicate a single choice of license, a
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* recipient has the option to distribute your version of this file under
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* either the CDDL, the GPL Version 2 or to extend the choice of license to
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* its licensees as provided above. However, if you add GPL Version 2 code
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* and therefore, elected the GPL Version 2 license, then the option applies
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* only if the new code is made subject to such option by the copyright
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* holder.
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*/
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package javax.annotation.sql;
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import java.lang.annotation.ElementType;
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import java.lang.annotation.Repeatable;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.annotation.Target;
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/**
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* Annotation used to define a container <code>DataSource</code> to be
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* registered with JNDI. The <code>DataSource</code> may be configured by
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* setting the annotation elements for commonly used <code>DataSource</code>
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* properties. Additional standard and vendor-specific properties may be
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* specified using the <code>properties</code> element.
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* <p>
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*
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* The data source will be registered under the name specified in the
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* <code>name</code> element. It may be defined to be in any valid Java EE
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* namespace, which will determine the accessibility of the data source from
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* other components.
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* <p>
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* A JDBC driver implementation class of the appropriate type, either
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* <code>DataSource</code>, <code>ConnectionPoolDataSource</code>, or
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* <code>XADataSource</code>, must be indicated by the <code>className</code>
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* element. The availability of the driver class will be assumed at runtime.
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* <p>
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* DataSource properties should not be specified more than once. If the url
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* annotation element contains a DataSource property that was also specified
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* using the corresponding annotation element or was specified in the properties
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* annotation element, the precedence order is undefined and implementation
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* specific:
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* <p>
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*
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* <pre>
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* @DataSourceDefinition(name="java:global/MyApp/MyDataSource",
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* className="org.apache.derby.jdbc.ClientDataSource",
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* url="jdbc:derby://localhost:1527/myDB;user=bill",
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* user="lance",
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* password="secret",
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* databaseName="testDB",
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* serverName="luckydog"
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* )// DO NOT DO THIS!!!
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* </pre>
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* <p>
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* In the above example, the <code>databaseName</code>, <code>user</code> and
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* <code>serverName</code> properties were specified as part of the
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* <code>url</code> property and using the corresponding annotation elements.
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* This should be avoided.
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* <p>
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* If the <code>properties</code> annotation element is used and contains a
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* DataSource property that was also specified using the corresponding
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* annotation element, the annotation element value takes precedence. For
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* example:
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* <p>
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*
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* <pre>
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* @DataSourceDefinition(name="java:global/MyApp/MyDataSource",
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* className="org.apache.derby.jdbc.ClientDataSource",
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* user="lance",
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* password="secret",
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* databaseName="testDB",
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* serverName="luckydog",
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* properties= {"databaseName=myDB", "databaseProp=doThis"}
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* )// DO NOT DO THIS!!!
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* </pre>
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* <p>
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* This would result in the following values being used when configuring the
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* DataSource:
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* <ul>
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* <li>serverName=luckydog</li>
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* <li>portNumber=1527</li>
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* <li>databaseName=testDB</li>
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* <li>user=lance</li>
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* <li>password=secret</li>
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* <li>databaseProp=doThis</li>
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* </ul>
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* <p>
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* Vendors are not required to support properties that do not normally apply to
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* a specific data source type. For example, specifying the
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* <code>transactional</code> property to be <code>true</code> but supplying a
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* value for <code>className</code> that implements a data source class other
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* than <code>XADataSource</code> may not be supported.
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* <p>
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* Vendor-specific properties may be combined with or used to override standard
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* data source properties defined using this annotation.
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* <p>
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* <code>DataSource</code> properties that are specified and are not supported
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* in a given configuration or cannot be mapped to a vendor specific
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* configuration property may be ignored.
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* <p>
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* Examples: <br>
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*
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* <pre>
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* @DataSourceDefinition(name="java:global/MyApp/MyDataSource",
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* className="com.foobar.MyDataSource",
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* portNumber=6689,
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* serverName="myserver.com",
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* user="lance",
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* password="secret"
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* )
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*
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* </pre>
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* <p>
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* Using a <code>URL</code>: <br>
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*
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* <pre>
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* @DataSourceDefinition(name="java:global/MyApp/MyDataSource",
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* className="org.apache.derby.jdbc.ClientDataSource",
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* url="jdbc:derby://localhost:1527/myDB",
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* user="lance",
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* password="secret"
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* )
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* </pre>
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* <p>
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* An example lookup of the DataSource from an EJB:
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*
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* <pre>
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* @Stateless
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* public class MyStatelessEJB {
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* @Resource(lookup="java:global/MyApp/myDataSource")
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* DataSource myDB;
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* ...
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* }
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* </pre>
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* <p>
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*
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* @see javax.sql.DataSource
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* @see javax.sql.XADataSource
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* @see javax.sql.ConnectionPoolDataSource
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* @since Common Annotations 1.1
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*/
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@Target({ ElementType.TYPE })
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@Retention(RetentionPolicy.RUNTIME)
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@Repeatable(DataSourceDefinitions.class)
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public @interface DataSourceDefinition {
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/**
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* JNDI name by which the data source will be registered.
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*
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* @since 1.1
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*/
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String name();
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/**
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* Name of a DataSource class that implements <code>javax.sql.DataSource</code>
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* or <code>javax.sql.XADataSource</code> or
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* <code>javax.sql.ConnectionPoolDataSource</code>.
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*
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* @since 1.1
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*/
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String className();
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/**
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* Description of this data source
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*
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* @since 1.1
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*/
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String description() default "";
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/**
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* A JDBC URL. If the <code>url</code> annotation element contains a DataSource
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* property that was also specified using the corresponding annotation element,
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* the precedence order is undefined and implementation specific.
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*
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* @since 1.1
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*/
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String url() default "";
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/**
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* User name to use for connection authentication.
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*
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* @since 1.1
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*/
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String user() default "";
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/**
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* Password to use for connection authentication.
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*
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* @since 1.1
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*/
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String password() default "";
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/**
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* Name of a database on a server.
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*
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* @since 1.1
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*/
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String databaseName() default "";
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/**
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* Port number where a server is listening for requests.
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*
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* @since 1.1
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*/
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int portNumber() default -1;
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/**
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* Database server name.
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*
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* @since 1.1
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*/
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String serverName() default "localhost";
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/**
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* Isolation level for connections. The Isolation level must be one of the
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* following:
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* <p>
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* <ul>
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* <li>Connection.TRANSACTION_NONE,
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* <li>Connection.TRANSACTION_READ_ UNCOMMITTED,
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* <li>Connection.TRANSACTION_READ_COMMITTED,
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* <li>Connection.TRANSACTION_REPEATABLE_READ,
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* <li>Connection.TRANSACTION_SERIALIZABLE
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* </ul>
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* <p>
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* Default is vendor-specific.
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*
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* @since 1.1
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*/
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int isolationLevel() default -1;
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/**
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* Set to <code>false</code> if connections should not participate in
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* transactions.
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* <p>
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* Default is to enlist in a transaction when one is active or becomes active.
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*
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* @since 1.1
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*/
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boolean transactional() default true;
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/**
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* Number of connections that should be created when a connection pool is
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* initialized.
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* <p>
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* Default is vendor-specific
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*
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* @since 1.1
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*/
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int initialPoolSize() default -1;
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/**
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* Maximum number of connections that should be concurrently allocated for a
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* connection pool.
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* <p>
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* Default is vendor-specific.
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*
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* @since 1.1
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*/
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int maxPoolSize() default -1;
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/**
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* Minimum number of connections that should be allocated for a connection pool.
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* <p>
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* Default is vendor-specific.
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*
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* @since 1.1
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*/
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int minPoolSize() default -1;
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/**
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* The number of seconds that a physical connection should remain unused in the
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* pool before the connection is closed for a connection pool.
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* <p>
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* Default is vendor-specific
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*
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* @since 1.1
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*/
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int maxIdleTime() default -1;
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/**
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* The total number of statements that a connection pool should keep open. A
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* value of 0 indicates that the caching of statements is disabled for a
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* connection pool.
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* <p>
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* Default is vendor-specific
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*
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* @since 1.1
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*/
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int maxStatements() default -1;
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/**
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* Used to specify vendor-specific properties and less commonly used
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* <code>DataSource</code> properties such as:
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* <p>
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* <ul>
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* <li>dataSourceName
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* <li>networkProtocol
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* <li>propertyCycle
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* <li>roleName
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* </ul>
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* <p>
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* Properties are specified using the format: <i>propertyName=propertyValue</i>
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* with one property per array element.
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* <p>
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* If a DataSource property is specified in the <code>properties</code> element
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* and the annotation element for the property is also specified, the annotation
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* element value takes precedence.
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*
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* @since 1.1
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*/
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String[] properties() default {};
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/**
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* Sets the maximum time in seconds that this data source will wait while
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* attempting to connect to a database. A value of zero specifies that the
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* timeout is the default system timeout if there is one; otherwise, it
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* specifies that there is no timeout.
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* <p>
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* Default is vendor-specific.
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*
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* @since 1.1
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*/
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int loginTimeout() default 0;
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}
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