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| |
| /** |
| * Standard interfaces and base classes for JDBC <code>RowSet</code> |
| * implementations. This package contains interfaces and classes |
| * that a standard <code>RowSet</code> implementation either implements or extends. |
| * |
| * <h2>Table of Contents</h2> |
| * <ul> |
| * <li><a href="#pkgspec">1.0 Package Specification</a> |
| * <li><a href="#stdrowset">2.0 Standard RowSet Definitions</a> |
| * <li><a href="#impl">3.0 Implementer's Guide</a> |
| * <li><a href="#relspec">4.0 Related Specifications</a> |
| * <li><a href="#reldocs">5.0 Related Documentation</a> |
| * </ul> |
| * |
| * <h3><a id="pkgspec">1.0 Package Specification</a></h3> |
| * This package specifies five standard JDBC <code>RowSet</code> interfaces. |
| * All five extend the |
| * <a href="{@docRoot}/java.sql/javax/sql/RowSet.html">RowSet</a> interface described in the JDBC 3.0 |
| * specification. It is anticipated that additional definitions |
| * of more specialized JDBC <code>RowSet</code> types will emerge as this technology |
| * matures. Future definitions <i>should</i> be specified as subinterfaces using |
| * inheritance similar to the way it is used in this specification. |
| * <p> |
| * <i>Note:</i> The interface definitions provided in this package form the basis for |
| * all compliant JDBC <code>RowSet</code> implementations. Vendors and more advanced |
| * developers who intend to provide their own compliant <code>RowSet</code> implementations |
| * should pay particular attention to the assertions detailed in specification |
| * interfaces. |
| * |
| * <h3><a id="stdrowset">2.0 Standard RowSet Definitions</a></h3> |
| * <ul> |
| * <li><a href="JdbcRowSet.html"><b><code>JdbcRowSet</code></b></a> - A wrapper around |
| * a <code>ResultSet</code> object that makes it possible to use the result set as a |
| * JavaBeans™ component. Thus, |
| * a <code>JdbcRowSet</code> object can be a Bean that any tool |
| * makes available for assembling an application as part of a component based |
| * architecture. A <code>JdbcRowSet</code> object is a connected <code>RowSet</code> |
| * object, that is, it |
| * <b>must</b> continually maintain its connection to its data source using a JDBC |
| * technology-enabled driver ("JDBC driver"). In addition, a <code>JdbcRowSet</code> |
| * object provides a fully updatable and scrollable tabular |
| * data structure as defined in the JDBC 3.0 specification. |
| * |
| * <li><a href="CachedRowSet.html"> |
| * <b><code>CachedRowSet</code>™</b></a> |
| * - A <code>CachedRowSet</code> object is a JavaBeans™ |
| * component that is scrollable, updatable, serializable, and generally disconnected from |
| * the source of its data. A <code>CachedRowSet</code> object |
| * typically contains rows from a result set, but it can also contain rows from any |
| * file with a tabular format, such as a spreadsheet. <code>CachedRowSet</code> implementations |
| * <b>must</b> use the <code>SyncFactory</code> to manage and obtain pluggable |
| * <code>SyncProvider</code> objects to provide synchronization between the |
| * disconnected <code>RowSet</code> object and the originating data source. |
| * Typically a <code>SyncProvider</code> implementation relies upon a JDBC |
| * driver to obtain connectivity to a particular data source. |
| * Further details on this mechanism are discussed in the <a |
| * href="spi/package-summary.html"><code>javax.sql.rowset.spi</code></a> package |
| * specification. |
| * |
| * <li><a href="WebRowSet.html"><b><code>WebRowSet</code></b></a> - A |
| * <code>WebRowSet</code> object is an extension of <code>CachedRowSet</code> |
| * that can read and write a <code>RowSet</code> object in a well formed XML format. |
| * This class calls an <a href="spi/XmlReader.html"><code>XmlReader</code></a> object |
| * (an extension of the <a href="{@docRoot}/java.sql/javax/sql/RowSetReader.html"><code>RowSetReader</code></a> |
| * interface) to read a rowset in XML format. It calls an |
| * <a href="spi/XmlWriter.html"><code>XmlWriter</code></a> object (an extension of the |
| * <a href="{@docRoot}/java.sql/javax/sql/RowSetWriter.html"><code>RowSetWriter</code></a> interface) |
| * to write a rowset in XML format. The reader and writer required by |
| * <code>WebRowSet</code> objects are provided by the |
| * <code>SyncFactory</code> in the form of <code>SyncProvider</code> |
| * implementations. In order to ensure well formed XML usage, a standard generic XML |
| * Schema is defined and published at |
| * <a href="http://java.sun.com/xml/ns/jdbc/webrowset.xsd"> |
| * <code>http://java.sun.com/xml/ns/jdbc/webrowset.xsd</code></a>. |
| * |
| * <li><a href="FilteredRowSet.html"><b><code>FilteredRowSet</code></b></a> - A |
| * <code>FilteredRowSet</code> object provides filtering functionality in a programmatic |
| * and extensible way. There are many instances when a <code>RowSet</code> <code>object</code> |
| * has a need to provide filtering in its contents without sacrificing the disconnected |
| * environment, thus saving the expense of having to create a connection to the data source. |
| * Solutions to this need vary from providing heavyweight full scale |
| * SQL query abilities, to portable components, to more lightweight |
| * approaches. A <code>FilteredRowSet</code> object consumes |
| * an implementation of the <a href="Predicate.html"><code>Predicate</code></a> |
| * interface, which <b>may</b> define a filter at run time. In turn, a |
| * <code>FilteredRowSet</code> object is tasked with enforcing the set filter for both |
| * inbound and outbound read and write operations. That is, all filters can be |
| * considered as bi-directional. No standard filters are defined; |
| * however, sufficient mechanics are specified to permit any required filter to be |
| * implemented. |
| * |
| * <li><a href="JoinRowSet.html"><b><code>JoinRowSet</code></b></a> - The <code>JoinRowSet</code> |
| * interface describes a mechanism by which relationships can be established between |
| * two or more standard <code>RowSet</code> implementations. Any number of <code>RowSet</code> |
| * objects can be added to a <code>JoinRowSet</code> object provided the <code>RowSet</code>objects |
| * can be related in a SQL <code>JOIN</code> like fashion. By definition, the SQL <code>JOIN</code> |
| * statement is used to combine the data contained in two (<i>or more</i>) relational |
| * database tables based upon a common attribute. By establishing and then enforcing |
| * column matches, a <code>JoinRowSet</code> object establishes relationships between |
| * <code>RowSet</code> instances without the need to touch the originating data source. |
| * </ul> |
| * |
| * <h3><a id="impl">3.0 Implementer's Guide</a></h3> |
| * Compliant implementations of JDBC <code>RowSet</code> Implementations |
| * <b>must</b> follow the assertions described in this specification. In accordance |
| * with the terms of the <a href="http://www.jcp.org">Java Community Process</a>, a |
| * Test Compatibility Kit (TCK) can be licensed to ensure compatibility with the |
| * specification. The following paragraphs outline a number of starting points for |
| * implementers of the standard JDBC <code>RowSet</code> definitions. Implementers |
| * should also consult the <i>Implementer's Guide</i> in the <a |
| * href="spi/package-summary.html">javax.sql.rowset.spi</a> package for guidelines |
| * on <a href="spi/SyncProvider.html"><code>SyncProvider</code></a> implementations. |
| * |
| * <ul> |
| * <li><b>3.1 Constructor</b> |
| * <p> |
| * All <code>RowSet</code> implementations <strong>must</strong> provide a |
| * no-argument constructor. |
| * </li> |
| * <li><b>3.2 Role of the <code>BaseRowSet</code> Class</b> |
| * <p> |
| * A compliant JDBC <code>RowSet</code> implementation <b>must</b> implement one or more |
| * standard interfaces specified in this package and <b>may</b> extend the |
| * <a href="BaseRowSet.html"><code>BaseRowSet</code></a> abstract class. For example, a |
| * <code>CachedRowSet</code> implementation must implement the <code>CachedRowSet</code> |
| * interface and extend the <code>BaseRowSet</code> abstract class. The |
| * <code>BaseRowSet</code> class provides the standard architecture on which all |
| * <code>RowSet</code> implementations should be built, regardless of whether the |
| * <code>RowSet</code> objects exist in a connected or disconnected environment. |
| * The <code>BaseRowSet</code> abstract class provides any <code>RowSet</code> implementation |
| * with its base functionality, including property manipulation and event notification |
| * that is fully compliant with <a href="http://java.sun.com/products/javabeans">JavaBeans</a> |
| * component requirements. As an example, all implementations provided in the |
| * reference implementations (contained in the <code>com.sun.rowset</code> package) use |
| * the <code>BaseRowSet</code> class as a basis for their implementations. |
| * <P> |
| * The following table illustrates the features that the <code>BaseRowSet</code> |
| * abstract class provides. |
| * <blockquote> |
| * <table class="striped" style="vertical-align:top; width:75%"> |
| * <caption>Features in <code>BaseRowSet</code></caption> |
| * <thead> |
| * <tr> |
| * <th scope="col">Feature</th> |
| * <th scope="col">Details</th> |
| * </tr> |
| * </thead> |
| * <tbody> |
| * <tr> |
| * <th scope="row">Properties</th> |
| * <td>Provides standard JavaBeans property manipulation |
| * mechanisms to allow applications to get and set <code>RowSet</code> command and |
| * property values. Refer to the documentation of the <code>javax.sql.RowSet</code> |
| * interface (available in the JDBC 3.0 specification) for more details on |
| * the standard <code>RowSet</code> properties.</td> |
| * </tr> |
| * <tr> |
| * <th scope="row">Event notification</th> |
| * <td>Provides standard JavaBeans event notifications |
| * to registered event listeners. Refer to the documentation of <code>javax.sql.RowSetEvent</code> |
| * interface (available in the JDBC 3.0 specification) for |
| * more details on how to register and handle standard RowSet events generated |
| * by compliant implementations.</td> |
| * </tr> |
| * <tr> |
| * <th scope="row">Setters for a RowSet object's command</th> |
| * <td>Provides a complete set of setter methods |
| * for setting RowSet command parameters.</td> |
| * </tr> |
| * <tr> |
| * <th scope="row">Streams</th> |
| * <td>Provides fields for storing of stream instances |
| * in addition to providing a set of constants for stream type designation.</td> |
| * </tr> |
| * </tbody> |
| * </table> |
| * </blockquote> |
| * |
| * <li><b>3.3 Connected RowSet Requirements</b> |
| * <p> |
| * The <code>JdbcRowSet</code> describes a <code>RowSet</code> object that <b>must</b> always |
| * be connected to the originating data source. Implementations of the <code>JdbcRowSet</code> |
| * should ensure that this connection is provided solely by a JDBC driver. |
| * Furthermore, <code>RowSet</code> objects that are implementations of the |
| * <code>JdbcRowSet</code> interface and are therefore operating in a connected environment |
| * do not use the <code>SyncFactory</code> to obtain a <code>RowSetReader</code> object |
| * or a <code>RowSetWriter</code> object. They can safely rely on the JDBC driver to |
| * supply their needs by virtue of the presence of an underlying updatable and scrollable |
| * <code>ResultSet</code> implementation. |
| * |
| * <li> |
| * <b>3.4 Disconnected RowSet Requirements</b> |
| * <p> |
| * A disconnected <code>RowSet</code> object, such as a <code>CachedRowSet</code> object, |
| * <b>should</b> delegate |
| * connection management to a <code>SyncProvider</code> object provided by the |
| * <code>SyncFactory</code>. To ensure fully disconnected semantics, all |
| * disconnected <code>RowSet</code> objects <b>must</b> ensure |
| * that the original connection made to the data source to populate the <code>RowSet</code> |
| * object is closed to permit the garbage collector to recover and release resources. The |
| * <code>SyncProvider</code> object ensures that the critical JDBC properties are |
| * maintained in order to re-establish a connection to the data source when a |
| * synchronization is required. A disconnected <code>RowSet</code> object should |
| * therefore ensure that no |
| * extraneous references remain on the <code>Connection</code> object. |
| * |
| * <li><b>3.5 Role of RowSetMetaDataImpl</b> |
| * <p> |
| * The <code>RowsetMetaDataImpl</code> class is a utility class that provides an implementation of the |
| * <a href="{@docRoot}/java.sql/javax/sql/RowSetMetaData.html">RowSetMetaData</a> interface, supplying standard setter |
| * method implementations for metadata for both connected and disconnected |
| * <code>RowSet</code> objects. All implementations are free to use this standard |
| * implementation but are not required to do so. |
| * |
| * <li><b>3.6 RowSetWarning Class</b> |
| * <p> |
| * The <code>RowSetWarning</code> class provides warnings that can be set |
| * on <code>RowSet</code> implementations. |
| * Similar to <a href="{@docRoot}/java.sql/java/sql/SQLWarning.html">SQLWarning</a> objects, |
| * <code>RowSetWarning</code> objects are silently chained to the object whose method |
| * caused the warning to be thrown. All <code>RowSet</code> implementations <b>should</b> |
| * ensure that this chaining occurs if a warning is generated and also ensure that the |
| * warnings are available via the <code>getRowSetWarnings</code> method defined in either |
| * the <code>JdbcRowSet</code> interface or the <code>CachedRowSet</code> interface. |
| * After a warning has been retrieved with one of the |
| * <code>getRowSetWarnings</code> methods, the <code>RowSetWarning</code> method |
| * <code>getNextWarning</code> can be called on it to retrieve any warnings that might |
| * be chained on it. If a warning is returned, <code>getNextWarning</code> can be called |
| * on it, and so on until there are no more warnings. |
| * |
| * <li><b>3.7 The Joinable Interface</b> |
| * <P> |
| * The <code>Joinable</code> interface provides both connected and disconnected |
| * <code>RowSet</code> objects with the capability to be added to a |
| * <code>JoinRowSet</code> object in an SQL <code>JOIN</code> operation. |
| * A <code>RowSet</code> object that has implemented the <code>Joinable</code> |
| * interface can set a match column, retrieve a match column, or unset a match column. |
| * A <code>JoinRowSet</code> object can then use the <code>RowSet</code> object's |
| * match column as a basis for adding the <code>RowSet</code> object. |
| * </li> |
| * |
| * <li><b>3.8 The RowSetFactory Interface</b> |
| * <p> |
| * A <code>RowSetFactory</code> implementation <strong>must</strong> |
| * be provided. |
| * </li> |
| * </ul> |
| * |
| * <h3><a id="relspec">4.0 Related Specifications</a></h3> |
| * <ul> |
| * <li><a href="https://jcp.org/en/jsr/detail?id=221">JDBC 4.3 Specification</a> |
| * <li><a href="http://www.w3.org/XML/Schema">XML Schema</a> |
| * </ul> |
| * |
| * <h3><a id="reldocs">5.0 Related Documentation</a></h3> |
| * <ul> |
| * <li><a href="http://docs.oracle.com/javase/tutorial/jdbc/basics/rowset.html"> |
| * JDBC RowSet Tutorial</a> |
| *</ul> |
| */ |
| package javax.sql.rowset; |
