| author | lancea |
| Thu, 27 Jun 2013 15:07:56 -0400 | |
| changeset 18564 | f9db68ff2cbb |
| parent 6671 | c5fbc05d7347 |
| child 20880 | 1b610151b316 |
| permissions | -rw-r--r-- |
| 2 | 1 |
/* |
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* Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package javax.sql.rowset; |
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import java.sql.*; |
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import javax.sql.*; |
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import javax.naming.*; |
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import java.io.*; |
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import java.math.*; |
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import org.xml.sax.*; |
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/** |
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* The standard interface that all implementations of a {@code WebRowSet}
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* must implement. |
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* <P> |
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* <h3>1.0 Overview</h3> |
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* The {@code WebRowSetImpl} provides the standard
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* reference implementation, which may be extended if required. |
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* <P> |
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* The standard WebRowSet XML Schema definition is available at the following |
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* URI: |
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* <ul> |
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* <li> |
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* <a href="http://java.sun.com/xml/ns/jdbc/webrowset.xsd">http://java.sun.com/xml/ns/jdbc/webrowset.xsd</a> |
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* </li> |
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* </ul> |
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* It describes the standard XML document format required when describing a |
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* {@code RowSet} object in XML and must be used be all standard implementations
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* of the {@code WebRowSet} interface to ensure interoperability. In addition,
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* the {@code WebRowSet} schema uses specific SQL/XML Schema annotations,
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* thus ensuring greater cross |
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* platform inter-operability. This is an effort currently under way at the ISO |
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* organization. The SQL/XML definition is available at the following URI: |
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* <ul> |
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* <li> |
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* <a href="http://standards.iso.org/iso/9075/2002/12/sqlxml">http://standards.iso.org/iso/9075/2002/12/sqlxml</a> |
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* </li> |
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* </ul> |
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* The schema definition describes the internal data of a {@code RowSet} object
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* in three distinct areas: |
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* <UL> |
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* <li>properties - These properties describe the standard synchronization |
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* provider properties in addition to the more general {@code RowSet} properties.
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* </li> |
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* <li>metadata - This describes the metadata associated with the tabular structure governed by a |
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* {@code WebRowSet} object. The metadata described is closely aligned with the
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* metadata accessible in the underlying {@code java.sql.ResultSet} interface.
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* </li> |
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* <li>data - This describes the original data (the state of data since the |
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* last population |
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* or last synchronization of the {@code WebRowSet} object) and the current
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* data. By keeping track of the delta between the original data and the current data, |
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* a {@code WebRowSet} maintains the ability to synchronize changes
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* in its data back to the originating data source. |
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* </li> |
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* </ul> |
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* <P> |
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* <h3>2.0 WebRowSet States</h3> |
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* The following sections demonstrates how a {@code WebRowSet} implementation
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* should use the XML Schema to describe update, insert, and delete operations |
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* and to describe the state of a {@code WebRowSet} object in XML.
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* <p> |
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* <h4>2.1 State 1 - Outputting a {@code WebRowSet} Object to XML</h4>
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* In this example, a {@code WebRowSet} object is created and populated with a simple 2 column,
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* 5 row table from a data source. Having the 5 rows in a {@code WebRowSet} object
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* makes it possible to describe them in XML. The |
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* metadata describing the various standard JavaBeans properties as defined |
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* in the RowSet interface plus the standard properties defined in |
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* the {@code CachedRowSet}™ interface
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* provide key details that describe WebRowSet |
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* properties. Outputting the WebRowSet object to XML using the standard |
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* {@code writeXml} methods describes the internal properties as follows:
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* <PRE> |
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* {@code
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* <properties> |
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* <command>select co1, col2 from test_table</command> |
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* <concurrency>1</concurrency> |
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* <datasource/> |
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* <escape-processing>true</escape-processing> |
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* <fetch-direction>0</fetch-direction> |
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* <fetch-size>0</fetch-size> |
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* <isolation-level>1</isolation-level> |
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* <key-columns/> |
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* <map/> |
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* <max-field-size>0</max-field-size> |
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* <max-rows>0</max-rows> |
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* <query-timeout>0</query-timeout> |
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* <read-only>false</read-only> |
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* <rowset-type>TRANSACTION_READ_UNCOMMITED</rowset-type> |
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* <show-deleted>false</show-deleted> |
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* <table-name/> |
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* <url>jdbc:thin:oracle</url> |
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* <sync-provider> |
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* <sync-provider-name>.com.rowset.provider.RIOptimisticProvider</sync-provider-name> |
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* <sync-provider-vendor>Oracle Corporation</sync-provider-vendor> |
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* <sync-provider-version>1.0</sync-provider-name> |
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* <sync-provider-grade>LOW</sync-provider-grade> |
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* <data-source-lock>NONE</data-source-lock> |
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* </sync-provider> |
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* </properties> |
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* } </PRE> |
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* The meta-data describing the make up of the WebRowSet is described |
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* in XML as detailed below. Note both columns are described between the |
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* {@code column-definition} tags.
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* <PRE> |
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* {@code
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* <metadata> |
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* <column-count>2</column-count> |
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* <column-definition> |
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* <column-index>1</column-index> |
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* <auto-increment>false</auto-increment> |
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* <case-sensitive>true</case-sensitive> |
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* <currency>false</currency> |
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* <nullable>1</nullable> |
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* <signed>false</signed> |
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* <searchable>true</searchable> |
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* <column-display-size>10</column-display-size> |
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* <column-label>COL1</column-label> |
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* <column-name>COL1</column-name> |
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* <schema-name/> |
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* <column-precision>10</column-precision> |
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* <column-scale>0</column-scale> |
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* <table-name/> |
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* <catalog-name/> |
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* <column-type>1</column-type> |
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* <column-type-name>CHAR</column-type-name> |
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* </column-definition> |
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* <column-definition> |
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* <column-index>2</column-index> |
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* <auto-increment>false</auto-increment> |
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* <case-sensitive>false</case-sensitive> |
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* <currency>false</currency> |
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* <nullable>1</nullable> |
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* <signed>true</signed> |
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* <searchable>true</searchable> |
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* <column-display-size>39</column-display-size> |
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* <column-label>COL2</column-label> |
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* <column-name>COL2</column-name> |
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* <schema-name/> |
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* <column-precision>38</column-precision> |
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* <column-scale>0</column-scale> |
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* <table-name/> |
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* <catalog-name/> |
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* <column-type>3</column-type> |
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* <column-type-name>NUMBER</column-type-name> |
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* </column-definition> |
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* </metadata> |
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* }</PRE> |
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* Having detailed how the properties and metadata are described, the following details |
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* how the contents of a {@code WebRowSet} object is described in XML. Note, that
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* this describes a {@code WebRowSet} object that has not undergone any
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* modifications since its instantiation. |
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* A {@code currentRow} tag is mapped to each row of the table structure that the
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* {@code WebRowSet} object provides. A {@code columnValue} tag may contain
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* either the {@code stringData} or {@code binaryData} tag, according to
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* the SQL type that |
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* the XML value is mapping back to. The {@code binaryData} tag contains data in the
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* Base64 encoding and is typically used for {@code BLOB} and {@code CLOB} type data.
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* <PRE> |
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* {@code
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* <data> |
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* <currentRow> |
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* <columnValue> |
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* firstrow |
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* </columnValue> |
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* <columnValue> |
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* 1 |
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* </columnValue> |
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* </currentRow> |
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* <currentRow> |
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* <columnValue> |
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* secondrow |
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* </columnValue> |
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* <columnValue> |
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* 2 |
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* </columnValue> |
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* </currentRow> |
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* <currentRow> |
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* <columnValue> |
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* thirdrow |
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* </columnValue> |
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* <columnValue> |
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* 3 |
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* </columnValue> |
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* </currentRow> |
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* <currentRow> |
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* <columnValue> |
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* fourthrow |
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* </columnValue> |
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* <columnValue> |
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* 4 |
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* </columnValue> |
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* </currentRow> |
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* </data> |
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* }</PRE> |
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* <h4>2.2 State 2 - Deleting a Row</h4> |
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* Deleting a row in a {@code WebRowSet} object involves simply moving to the row
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* to be deleted and then calling the method {@code deleteRow}, as in any other
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* {@code RowSet} object. The following
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* two lines of code, in which <i>wrs</i> is a {@code WebRowSet} object, delete
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* the third row. |
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* <PRE> |
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* wrs.absolute(3); |
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* wrs.deleteRow(); |
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* </PRE> |
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* The XML description shows the third row is marked as a {@code deleteRow},
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* which eliminates the third row in the {@code WebRowSet} object.
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* <PRE> |
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* {@code
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* <data> |
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* <currentRow> |
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* <columnValue> |
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* firstrow |
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* </columnValue> |
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* <columnValue> |
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* 1 |
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* </columnValue> |
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* </currentRow> |
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* <currentRow> |
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* <columnValue> |
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* secondrow |
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* </columnValue> |
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* <columnValue> |
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* 2 |
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* </columnValue> |
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* </currentRow> |
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* <deleteRow> |
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* <columnValue> |
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* thirdrow |
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* </columnValue> |
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* <columnValue> |
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* 3 |
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* </columnValue> |
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* </deleteRow> |
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* <currentRow> |
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* <columnValue> |
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* fourthrow |
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* </columnValue> |
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* <columnValue> |
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* 4 |
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* </columnValue> |
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* </currentRow> |
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* </data> |
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*} </PRE> |
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* <h4>2.3 State 3 - Inserting a Row</h4> |
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* A {@code WebRowSet} object can insert a new row by moving to the insert row,
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* calling the appropriate updater methods for each column in the row, and then |
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* calling the method {@code insertRow}.
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* <PRE> |
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* {@code
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* wrs.moveToInsertRow(); |
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* wrs.updateString(1, "fifththrow"); |
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* wrs.updateString(2, "5"); |
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* wrs.insertRow(); |
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* }</PRE> |
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* The following code fragment changes the second column value in the row just inserted. |
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* Note that this code applies when new rows are inserted right after the current row, |
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* which is why the method {@code next} moves the cursor to the correct row.
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* Calling the method {@code acceptChanges} writes the change to the data source.
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* |
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* <PRE> |
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* {@code wrs.moveToCurrentRow();
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* wrs.next(); |
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* wrs.updateString(2, "V"); |
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* wrs.acceptChanges(); |
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* }</PRE> |
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* Describing this in XML demonstrates where the Java code inserts a new row and then |
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* performs an update on the newly inserted row on an individual field. |
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* <PRE> |
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* {@code
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* <data> |
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* <currentRow> |
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* <columnValue> |
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* firstrow |
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* </columnValue> |
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* <columnValue> |
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* 1 |
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* </columnValue> |
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* </currentRow> |
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* <currentRow> |
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* <columnValue> |
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* secondrow |
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* </columnValue> |
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* <columnValue> |
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* 2 |
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* </columnValue> |
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* </currentRow> |
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* <currentRow> |
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* <columnValue> |
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* newthirdrow |
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* </columnValue> |
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* <columnValue> |
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* III |
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* </columnValue> |
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* </currentRow> |
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* <insertRow> |
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* <columnValue> |
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* fifthrow |
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* </columnValue> |
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* <columnValue> |
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* 5 |
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* </columnValue> |
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* <updateValue> |
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* V |
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* </updateValue> |
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* </insertRow> |
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* <currentRow> |
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* <columnValue> |
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* fourthrow |
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* </columnValue> |
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* <columnValue> |
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* 4 |
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* </columnValue> |
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* </currentRow> |
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* </date> |
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*} </PRE> |
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* <h4>2.4 State 4 - Modifying a Row</h4> |
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* Modifying a row produces specific XML that records both the new value and the |
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* value that was replaced. The value that was replaced becomes the original value, |
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* and the new value becomes the current value. The following |
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* code moves the cursor to a specific row, performs some modifications, and updates |
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* the row when complete. |
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* <PRE> |
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*{@code
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* wrs.absolute(5); |
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* wrs.updateString(1, "new4thRow"); |
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* wrs.updateString(2, "IV"); |
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* wrs.updateRow(); |
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* }</PRE> |
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* In XML, this is described by the {@code modifyRow} tag. Both the original and new
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* values are contained within the tag for original row tracking purposes. |
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* <PRE> |
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* {@code
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* <data> |
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* <currentRow> |
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* <columnValue> |
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* firstrow |
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* </columnValue> |
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* <columnValue> |
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* 1 |
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* </columnValue> |
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* </currentRow> |
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* <currentRow> |
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* <columnValue> |
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* secondrow |
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* </columnValue> |
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* <columnValue> |
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* 2 |
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* </columnValue> |
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* </currentRow> |
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* <currentRow> |
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* <columnValue> |
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* newthirdrow |
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* </columnValue> |
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* <columnValue> |
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* III |
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* </columnValue> |
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* </currentRow> |
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* <currentRow> |
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* <columnValue> |
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* fifthrow |
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* </columnValue> |
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* <columnValue> |
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* 5 |
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* </columnValue> |
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* </currentRow> |
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* <modifyRow> |
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* <columnValue> |
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* fourthrow |
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* </columnValue> |
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* <updateValue> |
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* new4thRow |
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* </updateValue> |
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* <columnValue> |
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* 4 |
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* </columnValue> |
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* <updateValue> |
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* IV |
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* </updateValue> |
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* </modifyRow> |
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* </data> |
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* }</PRE> |
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* |
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* @see javax.sql.rowset.JdbcRowSet |
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* @see javax.sql.rowset.CachedRowSet |
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* @see javax.sql.rowset.FilteredRowSet |
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* @see javax.sql.rowset.JoinRowSet |
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*/ |
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public interface WebRowSet extends CachedRowSet {
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/** |
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* Reads a {@code WebRowSet} object in its XML format from the given
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* {@code Reader} object.
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* |
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* @param reader the {@code java.io.Reader} stream from which this
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* {@code WebRowSet} object will be populated
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* @throws SQLException if a database access error occurs |
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*/ |
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public void readXml(java.io.Reader reader) throws SQLException; |
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||
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/** |
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* Reads a stream based XML input to populate this {@code WebRowSet}
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* object. |
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* |
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* @param iStream the {@code java.io.InputStream} from which this
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* {@code WebRowSet} object will be populated
|
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* @throws SQLException if a data source access error occurs |
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* @throws IOException if an IO exception occurs |
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*/ |
|
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public void readXml(java.io.InputStream iStream) throws SQLException, IOException; |
|
436 |
||
437 |
/** |
|
| 18564 | 438 |
* Populates this {@code WebRowSet} object with
|
439 |
* the contents of the given {@code ResultSet} object and writes its
|
|
| 2 | 440 |
* data, properties, and metadata |
| 18564 | 441 |
* to the given {@code Writer} object in XML format.
|
| 2 | 442 |
* <p> |
| 18564 | 443 |
* NOTE: The {@code WebRowSet} cursor may be moved to write out the
|
| 2 | 444 |
* contents to the XML data source. If implemented in this way, the cursor <b>must</b> |
| 18564 | 445 |
* be returned to its position just prior to the {@code writeXml()} call.
|
| 2 | 446 |
* |
| 18564 | 447 |
* @param rs the {@code ResultSet} object with which to populate this
|
448 |
* {@code WebRowSet} object
|
|
449 |
* @param writer the {@code java.io.Writer} object to write to.
|
|
| 2 | 450 |
* @throws SQLException if an error occurs writing out the rowset |
451 |
* contents in XML format |
|
452 |
*/ |
|
453 |
public void writeXml(ResultSet rs, java.io.Writer writer) throws SQLException; |
|
454 |
||
455 |
/** |
|
| 18564 | 456 |
* Populates this {@code WebRowSet} object with
|
457 |
* the contents of the given {@code ResultSet} object and writes its
|
|
| 2 | 458 |
* data, properties, and metadata |
| 18564 | 459 |
* to the given {@code OutputStream} object in XML format.
|
| 2 | 460 |
* <p> |
| 18564 | 461 |
* NOTE: The {@code WebRowSet} cursor may be moved to write out the
|
| 2 | 462 |
* contents to the XML data source. If implemented in this way, the cursor <b>must</b> |
| 18564 | 463 |
* be returned to its position just prior to the {@code writeXml()} call.
|
| 2 | 464 |
* |
| 18564 | 465 |
* @param rs the {@code ResultSet} object with which to populate this
|
466 |
* {@code WebRowSet} object
|
|
467 |
* @param oStream the {@code java.io.OutputStream} to write to
|
|
| 2 | 468 |
* @throws SQLException if a data source access error occurs |
469 |
* @throws IOException if a IO exception occurs |
|
470 |
*/ |
|
471 |
public void writeXml(ResultSet rs, java.io.OutputStream oStream) throws SQLException, IOException; |
|
472 |
||
473 |
/** |
|
| 18564 | 474 |
* Writes the data, properties, and metadata for this {@code WebRowSet} object
|
475 |
* to the given {@code Writer} object in XML format.
|
|
| 2 | 476 |
* |
| 18564 | 477 |
* @param writer the {@code java.io.Writer} stream to write to
|
| 2 | 478 |
* @throws SQLException if an error occurs writing out the rowset |
479 |
* contents to XML |
|
480 |
*/ |
|
481 |
public void writeXml(java.io.Writer writer) throws SQLException; |
|
482 |
||
483 |
/** |
|
| 18564 | 484 |
* Writes the data, properties, and metadata for this {@code WebRowSet} object
|
485 |
* to the given {@code OutputStream} object in XML format.
|
|
| 2 | 486 |
* |
| 18564 | 487 |
* @param oStream the {@code java.io.OutputStream} stream to write to
|
| 2 | 488 |
* @throws SQLException if a data source access error occurs |
489 |
* @throws IOException if a IO exception occurs |
|
490 |
*/ |
|
491 |
public void writeXml(java.io.OutputStream oStream) throws SQLException, IOException; |
|
492 |
||
493 |
/** |
|
494 |
* The public identifier for the XML Schema definition that defines the XML |
|
| 18564 | 495 |
* tags and their valid values for a {@code WebRowSet} implementation.
|
| 2 | 496 |
*/ |
497 |
public static String PUBLIC_XML_SCHEMA = |
|
|
6671
c5fbc05d7347
6984044: RowSet source needs to rebrand vendor references
lancea
parents:
5506
diff
changeset
|
498 |
"--//Oracle Corporation//XSD Schema//EN"; |
| 2 | 499 |
|
500 |
/** |
|
501 |
* The URL for the XML Schema definition file that defines the XML tags and |
|
| 18564 | 502 |
* their valid values for a {@code WebRowSet} implementation.
|
| 2 | 503 |
*/ |
504 |
public static String SCHEMA_SYSTEM_ID = "http://java.sun.com/xml/ns/jdbc/webrowset.xsd"; |
|
505 |
} |