| /* |
| * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package javax.sql.rowset; |
| |
| import java.sql.*; |
| import javax.sql.*; |
| import javax.naming.*; |
| import java.io.*; |
| import java.math.*; |
| import java.util.*; |
| |
| import javax.sql.rowset.*; |
| |
| /** |
| * The <code>JoinRowSet</code> interface provides a mechanism for combining related |
| * data from different <code>RowSet</code> objects into one <code>JoinRowSet</code> |
| * object, which represents an SQL <code>JOIN</code>. |
| * In other words, a <code>JoinRowSet</code> object acts as a |
| * container for the data from <code>RowSet</code> objects that form an SQL |
| * <code>JOIN</code> relationship. |
| * <P> |
| * The <code>Joinable</code> interface provides the methods for setting, |
| * retrieving, and unsetting a match column, the basis for |
| * establishing an SQL <code>JOIN</code> relationship. The match column may |
| * alternatively be set by supplying it to the appropriate version of the |
| * <code>JointRowSet</code> method <code>addRowSet</code>. |
| * |
| * <h3>1.0 Overview</h3> |
| * Disconnected <code>RowSet</code> objects (<code>CachedRowSet</code> objects |
| * and implementations extending the <code>CachedRowSet</code> interface) |
| * do not have a standard way to establish an SQL <code>JOIN</code> between |
| * <code>RowSet</code> objects without the expensive operation of |
| * reconnecting to the data source. The <code>JoinRowSet</code> |
| * interface is specifically designed to address this need. |
| * <P> |
| * Any <code>RowSet</code> object |
| * can be added to a <code>JoinRowSet</code> object to become |
| * part of an SQL <code>JOIN</code> relationship. This means that both connected |
| * and disconnected <code>RowSet</code> objects can be part of a <code>JOIN</code>. |
| * <code>RowSet</code> objects operating in a connected environment |
| * (<code>JdbcRowSet</code> objects) are |
| * encouraged to use the database to which they are already |
| * connected to establish SQL <code>JOIN</code> relationships between |
| * tables directly. However, it is possible for a |
| * <code>JdbcRowSet</code> object to be added to a <code>JoinRowSet</code> object |
| * if necessary. |
| * <P> |
| * Any number of <code>RowSet</code> objects can be added to an |
| * instance of <code>JoinRowSet</code> provided that they |
| * can be related in an SQL <code>JOIN</code>. |
| * By definition, the SQL <code>JOIN</code> statement is used to |
| * combine the data contained in two or more relational database tables based |
| * upon a common attribute. The <code>Joinable</code> interface provides the methods |
| * for establishing a common attribute, which is done by setting a |
| * <i>match column</i>. The match column commonly coincides with |
| * the primary key, but there is |
| * no requirement that the match column be the same as the primary key. |
| * By establishing and then enforcing column matches, |
| * a <code>JoinRowSet</code> object establishes <code>JOIN</code> relationships |
| * between <code>RowSet</code> objects without the assistance of an available |
| * relational database. |
| * <P> |
| * The type of <code>JOIN</code> to be established is determined by setting |
| * one of the <code>JoinRowSet</code> constants using the method |
| * <code>setJoinType</code>. The following SQL <code>JOIN</code> types can be set: |
| * <UL> |
| * <LI><code>CROSS_JOIN</code> |
| * <LI><code>FULL_JOIN</code> |
| * <LI><code>INNER_JOIN</code> - the default if no <code>JOIN</code> type has been set |
| * <LI><code>LEFT_OUTER_JOIN</code> |
| * <LI><code>RIGHT_OUTER_JOIN</code> |
| * </UL> |
| * Note that if no type is set, the <code>JOIN</code> will automatically be an |
| * inner join. The comments for the fields in the |
| * <code>JoinRowSet</code> interface explain these <code>JOIN</code> types, which are |
| * standard SQL <code>JOIN</code> types. |
| * |
| * <h3>2.0 Using a <code>JoinRowSet</code> Object for Creating a <code>JOIN</code></h3> |
| * When a <code>JoinRowSet</code> object is created, it is empty. |
| * The first <code>RowSet</code> object to be added becomes the basis for the |
| * <code>JOIN</code> relationship. |
| * Applications must determine which column in each of the |
| * <code>RowSet</code> objects to be added to the <code>JoinRowSet</code> object |
| * should be the match column. All of the |
| * <code>RowSet</code> objects must contain a match column, and the values in |
| * each match column must be ones that can be compared to values in the other match |
| * columns. The columns do not have to have the same name, though they often do, |
| * and they do not have to store the exact same data type as long as the data types |
| * can be compared. |
| * <P> |
| * A match column can be set in two ways: |
| * <ul> |
| * <li>By calling the <code>Joinable</code> method <code>setMatchColumn</code><br> |
| * This is the only method that can set the match column before a <code>RowSet</code> |
| * object is added to a <code>JoinRowSet</code> object. The <code>RowSet</code> object |
| * must have implemented the <code>Joinable</code> interface in order to use the method |
| * <code>setMatchColumn</code>. Once the match column value |
| * has been set, this method can be used to reset the match column at any time. |
| * <li>By calling one of the versions of the <code>JoinRowSet</code> method |
| * <code>addRowSet</code> that takes a column name or number (or an array of |
| * column names or numbers)<BR> |
| * Four of the five <code>addRowSet</code> methods take a match column as a parameter. |
| * These four methods set or reset the match column at the time a <code>RowSet</code> |
| * object is being added to a <code>JoinRowSet</code> object. |
| * </ul> |
| * <h3>3.0 Sample Usage</h3> |
| * <p> |
| * The following code fragment adds two <code>CachedRowSet</code> |
| * objects to a <code>JoinRowSet</code> object. Note that in this example, |
| * no SQL <code>JOIN</code> type is set, so the default <code>JOIN</code> type, |
| * which is <i>INNER_JOIN</i>, is established. |
| * <p> |
| * In the following code fragment, the table <code>EMPLOYEES</code>, whose match |
| * column is set to the first column (<code>EMP_ID</code>), is added to the |
| * <code>JoinRowSet</code> object <i>jrs</i>. Then |
| * the table <code>ESSP_BONUS_PLAN</code>, whose match column is likewise |
| * the <code>EMP_ID</code> column, is added. When this second |
| * table is added to <i>jrs</i>, only the rows in |
| * <code>ESSP_BONUS_PLAN</code> whose <code>EMP_ID</code> value matches an |
| * <code>EMP_ID</code> value in the <code>EMPLOYEES</code> table are added. |
| * In this case, everyone in the bonus plan is an employee, so all of the rows |
| * in the table <code>ESSP_BONUS_PLAN</code> are added to the <code>JoinRowSet</code> |
| * object. In this example, both <code>CachedRowSet</code> objects being added |
| * have implemented the <code>Joinable</code> interface and can therefore call |
| * the <code>Joinable</code> method <code>setMatchColumn</code>. |
| * <PRE> |
| * JoinRowSet jrs = new JoinRowSetImpl(); |
| * |
| * ResultSet rs1 = stmt.executeQuery("SELECT * FROM EMPLOYEES"); |
| * CachedRowSet empl = new CachedRowSetImpl(); |
| * empl.populate(rs1); |
| * empl.setMatchColumn(1); |
| * jrs.addRowSet(empl); |
| * |
| * ResultSet rs2 = stmt.executeQuery("SELECT * FROM ESSP_BONUS_PLAN"); |
| * CachedRowSet bonus = new CachedRowSetImpl(); |
| * bonus.populate(rs2); |
| * bonus.setMatchColumn(1); // EMP_ID is the first column |
| * jrs.addRowSet(bonus); |
| * </PRE> |
| * <P> |
| * At this point, <i>jrs</i> is an inside JOIN of the two <code>RowSet</code> objects |
| * based on their <code>EMP_ID</code> columns. The application can now browse the |
| * combined data as if it were browsing one single <code>RowSet</code> object. |
| * Because <i>jrs</i> is itself a <code>RowSet</code> object, an application can |
| * navigate or modify it using <code>RowSet</code> methods. |
| * <PRE> |
| * jrs.first(); |
| * int employeeID = jrs.getInt(1); |
| * String employeeName = jrs.getString(2); |
| * </PRE> |
| * <P> |
| * Note that because the SQL <code>JOIN</code> must be enforced when an application |
| * adds a second or subsequent <code>RowSet</code> object, there |
| * may be an initial degradation in performance while the <code>JOIN</code> is |
| * being performed. |
| * <P> |
| * The following code fragment adds an additional <code>CachedRowSet</code> object. |
| * In this case, the match column (<code>EMP_ID</code>) is set when the |
| * <code>CachedRowSet</code> object is added to the <code>JoinRowSet</code> object. |
| * <PRE> |
| * ResultSet rs3 = stmt.executeQuery("SELECT * FROM 401K_CONTRIB"); |
| * CachedRowSet fourO1k = new CachedRowSetImpl(); |
| * four01k.populate(rs3); |
| * jrs.addRowSet(four01k, 1); |
| * </PRE> |
| * <P> |
| * The <code>JoinRowSet</code> object <i>jrs</i> now contains values from all three |
| * tables. The data in each row in <i>four01k</i> in which the value for the |
| * <code>EMP_ID</code> column matches a value for the <code>EMP_ID</code> column |
| * in <i>jrs</i> has been added to <i>jrs</i>. |
| * |
| * <h3>4.0 <code>JoinRowSet</code> Methods</h3> |
| * The <code>JoinRowSet</code> interface supplies several methods for adding |
| * <code>RowSet</code> objects and for getting information about the |
| * <code>JoinRowSet</code> object. |
| * <UL> |
| * <LI>Methods for adding one or more <code>RowSet</code> objects<BR> |
| * These methods allow an application to add one <code>RowSet</code> object |
| * at a time or to add multiple <code>RowSet</code> objects at one time. In |
| * either case, the methods may specify the match column for each |
| * <code>RowSet</code> object being added. |
| * <LI>Methods for getting information<BR> |
| * One method retrieves the <code>RowSet</code> objects in the |
| * <code>JoinRowSet</code> object, and another method retrieves the |
| * <code>RowSet</code> names. A third method retrieves either the SQL |
| * <code>WHERE</code> clause used behind the scenes to form the |
| * <code>JOIN</code> or a text description of what the <code>WHERE</code> |
| * clause does. |
| * <LI>Methods related to the type of <code>JOIN</code><BR> |
| * One method sets the <code>JOIN</code> type, and five methods find out whether |
| * the <code>JoinRowSet</code> object supports a given type. |
| * <LI>A method to make a separate copy of the <code>JoinRowSet</code> object<BR> |
| * This method creates a copy that can be persisted to the data source. |
| * </UL> |
| * |
| * @since 1.5 |
| */ |
| |
| public interface JoinRowSet extends WebRowSet { |
| |
| /** |
| * Adds the given <code>RowSet</code> object to this <code>JoinRowSet</code> |
| * object. If the <code>RowSet</code> object |
| * is the first to be added to this <code>JoinRowSet</code> |
| * object, it forms the basis of the <code>JOIN</code> relationship to be |
| * established. |
| * <P> |
| * This method should be used only when the given <code>RowSet</code> |
| * object already has a match column that was set with the <code>Joinable</code> |
| * method <code>setMatchColumn</code>. |
| * <p> |
| * Note: A <code>Joinable</code> object is any <code>RowSet</code> object |
| * that has implemented the <code>Joinable</code> interface. |
| * |
| * @param rowset the <code>RowSet</code> object that is to be added to this |
| * <code>JoinRowSet</code> object; it must implement the |
| * <code>Joinable</code> interface and have a match column set |
| * @throws SQLException if (1) an empty rowset is added to the to this |
| * <code>JoinRowSet</code> object, (2) a match column has not been |
| * set for <i>rowset</i>, or (3) <i>rowset</i> |
| * violates the active <code>JOIN</code> |
| * @see Joinable#setMatchColumn |
| */ |
| public void addRowSet(Joinable rowset) throws SQLException; |
| |
| /** |
| * Adds the given <code>RowSet</code> object to this <code>JoinRowSet</code> |
| * object and sets the designated column as the match column for |
| * the <code>RowSet</code> object. If the <code>RowSet</code> object |
| * is the first to be added to this <code>JoinRowSet</code> |
| * object, it forms the basis of the <code>JOIN</code> relationship to be |
| * established. |
| * <P> |
| * This method should be used when <i>RowSet</i> does not already have a match |
| * column set. |
| * |
| * @param rowset the <code>RowSet</code> object that is to be added to this |
| * <code>JoinRowSet</code> object; it may implement the |
| * <code>Joinable</code> interface |
| * @param columnIdx an <code>int</code> that identifies the column to become the |
| * match column |
| * @throws SQLException if (1) <i>rowset</i> is an empty rowset or |
| * (2) <i>rowset</i> violates the active <code>JOIN</code> |
| * @see Joinable#unsetMatchColumn |
| */ |
| public void addRowSet(RowSet rowset, int columnIdx) throws SQLException; |
| |
| /** |
| * Adds <i>rowset</i> to this <code>JoinRowSet</code> object and |
| * sets the designated column as the match column. If <i>rowset</i> |
| * is the first to be added to this <code>JoinRowSet</code> |
| * object, it forms the basis for the <code>JOIN</code> relationship to be |
| * established. |
| * <P> |
| * This method should be used when the given <code>RowSet</code> object |
| * does not already have a match column. |
| * |
| * @param rowset the <code>RowSet</code> object that is to be added to this |
| * <code>JoinRowSet</code> object; it may implement the |
| * <code>Joinable</code> interface |
| * @param columnName the <code>String</code> object giving the name of the |
| * column to be set as the match column |
| * @throws SQLException if (1) <i>rowset</i> is an empty rowset or |
| * (2) the match column for <i>rowset</i> does not satisfy the |
| * conditions of the <code>JOIN</code> |
| */ |
| public void addRowSet(RowSet rowset, |
| String columnName) throws SQLException; |
| |
| /** |
| * Adds one or more <code>RowSet</code> objects contained in the given |
| * array of <code>RowSet</code> objects to this <code>JoinRowSet</code> |
| * object and sets the match column for |
| * each of the <code>RowSet</code> objects to the match columns |
| * in the given array of column indexes. The first element in |
| * <i>columnIdx</i> is set as the match column for the first |
| * <code>RowSet</code> object in <i>rowset</i>, the second element of |
| * <i>columnIdx</i> is set as the match column for the second element |
| * in <i>rowset</i>, and so on. |
| * <P> |
| * The first <code>RowSet</code> object added to this <code>JoinRowSet</code> |
| * object forms the basis for the <code>JOIN</code> relationship. |
| * <P> |
| * This method should be used when the given <code>RowSet</code> object |
| * does not already have a match column. |
| * |
| * @param rowset an array of one or more <code>RowSet</code> objects |
| * to be added to the <code>JOIN</code>; it may implement the |
| * <code>Joinable</code> interface |
| * @param columnIdx an array of <code>int</code> values indicating the index(es) |
| * of the columns to be set as the match columns for the <code>RowSet</code> |
| * objects in <i>rowset</i> |
| * @throws SQLException if (1) an empty rowset is added to this |
| * <code>JoinRowSet</code> object, (2) a match column is not set |
| * for a <code>RowSet</code> object in <i>rowset</i>, or (3) |
| * a <code>RowSet</code> object being added violates the active |
| * <code>JOIN</code> |
| */ |
| public void addRowSet(RowSet[] rowset, |
| int[] columnIdx) throws SQLException; |
| |
| /** |
| * Adds one or more <code>RowSet</code> objects contained in the given |
| * array of <code>RowSet</code> objects to this <code>JoinRowSet</code> |
| * object and sets the match column for |
| * each of the <code>RowSet</code> objects to the match columns |
| * in the given array of column names. The first element in |
| * <i>columnName</i> is set as the match column for the first |
| * <code>RowSet</code> object in <i>rowset</i>, the second element of |
| * <i>columnName</i> is set as the match column for the second element |
| * in <i>rowset</i>, and so on. |
| * <P> |
| * The first <code>RowSet</code> object added to this <code>JoinRowSet</code> |
| * object forms the basis for the <code>JOIN</code> relationship. |
| * <P> |
| * This method should be used when the given <code>RowSet</code> object(s) |
| * does not already have a match column. |
| * |
| * @param rowset an array of one or more <code>RowSet</code> objects |
| * to be added to the <code>JOIN</code>; it may implement the |
| * <code>Joinable</code> interface |
| * @param columnName an array of <code>String</code> values indicating the |
| * names of the columns to be set as the match columns for the |
| * <code>RowSet</code> objects in <i>rowset</i> |
| * @throws SQLException if (1) an empty rowset is added to this |
| * <code>JoinRowSet</code> object, (2) a match column is not set |
| * for a <code>RowSet</code> object in <i>rowset</i>, or (3) |
| * a <code>RowSet</code> object being added violates the active |
| * <code>JOIN</code> |
| */ |
| public void addRowSet(RowSet[] rowset, |
| String[] columnName) throws SQLException; |
| |
| /** |
| * Returns a <code>Collection</code> object containing the |
| * <code>RowSet</code> objects that have been added to this |
| * <code>JoinRowSet</code> object. |
| * This should return the 'n' number of RowSet contained |
| * within the <code>JOIN</code> and maintain any updates that have occurred while in |
| * this union. |
| * |
| * @return a <code>Collection</code> object consisting of the |
| * <code>RowSet</code> objects added to this <code>JoinRowSet</code> |
| * object |
| * @throws SQLException if an error occurs generating the |
| * <code>Collection</code> object to be returned |
| */ |
| public Collection<?> getRowSets() throws java.sql.SQLException; |
| |
| /** |
| * Returns a <code>String</code> array containing the names of the |
| * <code>RowSet</code> objects added to this <code>JoinRowSet</code> |
| * object. |
| * |
| * @return a <code>String</code> array of the names of the |
| * <code>RowSet</code> objects in this <code>JoinRowSet</code> |
| * object |
| * @throws SQLException if an error occurs retrieving the names of |
| * the <code>RowSet</code> objects |
| * @see CachedRowSet#setTableName |
| */ |
| public String[] getRowSetNames() throws java.sql.SQLException; |
| |
| /** |
| * Creates a new <code>CachedRowSet</code> object containing the |
| * data in this <code>JoinRowSet</code> object, which can be saved |
| * to a data source using the <code>SyncProvider</code> object for |
| * the <code>CachedRowSet</code> object. |
| * <P> |
| * If any updates or modifications have been applied to the JoinRowSet |
| * the CachedRowSet returned by the method will not be able to persist |
| * it's changes back to the originating rows and tables in the |
| * in the datasource. The CachedRowSet instance returned should not |
| * contain modification data and it should clear all properties of |
| * it's originating SQL statement. An application should reset the |
| * SQL statement using the <code>RowSet.setCommand</code> method. |
| * <p> |
| * In order to allow changes to be persisted back to the datasource |
| * to the originating tables, the <code>acceptChanges</code> method |
| * should be used and called on a JoinRowSet object instance. Implementations |
| * can leverage the internal data and update tracking in their |
| * implementations to interact with the SyncProvider to persist any |
| * changes. |
| * |
| * @return a CachedRowSet containing the contents of the JoinRowSet |
| * @throws SQLException if an error occurs assembling the CachedRowSet |
| * object |
| * @see javax.sql.RowSet |
| * @see javax.sql.rowset.CachedRowSet |
| * @see javax.sql.rowset.spi.SyncProvider |
| */ |
| public CachedRowSet toCachedRowSet() throws java.sql.SQLException; |
| |
| /** |
| * Indicates if CROSS_JOIN is supported by a JoinRowSet |
| * implementation |
| * |
| * @return true if the CROSS_JOIN is supported; false otherwise |
| */ |
| public boolean supportsCrossJoin(); |
| |
| /** |
| * Indicates if INNER_JOIN is supported by a JoinRowSet |
| * implementation |
| * |
| * @return true is the INNER_JOIN is supported; false otherwise |
| */ |
| public boolean supportsInnerJoin(); |
| |
| /** |
| * Indicates if LEFT_OUTER_JOIN is supported by a JoinRowSet |
| * implementation |
| * |
| * @return true is the LEFT_OUTER_JOIN is supported; false otherwise |
| */ |
| public boolean supportsLeftOuterJoin(); |
| |
| /** |
| * Indicates if RIGHT_OUTER_JOIN is supported by a JoinRowSet |
| * implementation |
| * |
| * @return true is the RIGHT_OUTER_JOIN is supported; false otherwise |
| */ |
| public boolean supportsRightOuterJoin(); |
| |
| /** |
| * Indicates if FULL_JOIN is supported by a JoinRowSet |
| * implementation |
| * |
| * @return true is the FULL_JOIN is supported; false otherwise |
| */ |
| public boolean supportsFullJoin(); |
| |
| /** |
| * Allow the application to adjust the type of <code>JOIN</code> imposed |
| * on tables contained within the JoinRowSet object instance. |
| * Implementations should throw a SQLException if they do |
| * not support a given <code>JOIN</code> type. |
| * |
| * @param joinType the standard JoinRowSet.XXX static field definition |
| * of a SQL <code>JOIN</code> to re-configure a JoinRowSet instance on |
| * the fly. |
| * @throws SQLException if an unsupported <code>JOIN</code> type is set |
| * @see #getJoinType |
| */ |
| public void setJoinType(int joinType) throws SQLException; |
| |
| /** |
| * Return a SQL-like description of the WHERE clause being used |
| * in a JoinRowSet object. An implementation can describe |
| * the WHERE clause of the SQL <code>JOIN</code> by supplying a SQL |
| * strings description of <code>JOIN</code> or provide a textual |
| * description to assist applications using a <code>JoinRowSet</code> |
| * |
| * @return whereClause a textual or SQL description of the logical |
| * WHERE clause used in the JoinRowSet instance |
| * @throws SQLException if an error occurs in generating a representation |
| * of the WHERE clause. |
| */ |
| public String getWhereClause() throws SQLException; |
| |
| /** |
| * Returns a <code>int</code> describing the set SQL <code>JOIN</code> type |
| * governing this JoinRowSet instance. The returned type will be one of |
| * standard JoinRowSet types: <code>CROSS_JOIN</code>, <code>INNER_JOIN</code>, |
| * <code>LEFT_OUTER_JOIN</code>, <code>RIGHT_OUTER_JOIN</code> or |
| * <code>FULL_JOIN</code>. |
| * |
| * @return joinType one of the standard JoinRowSet static field |
| * definitions of a SQL <code>JOIN</code>. <code>JoinRowSet.INNER_JOIN</code> |
| * is returned as the default <code>JOIN</code> type is no type has been |
| * explicitly set. |
| * @throws SQLException if an error occurs determining the SQL <code>JOIN</code> |
| * type supported by the JoinRowSet instance. |
| * @see #setJoinType |
| */ |
| public int getJoinType() throws SQLException; |
| |
| /** |
| * An ANSI-style <code>JOIN</code> providing a cross product of two tables |
| */ |
| public static int CROSS_JOIN = 0; |
| |
| /** |
| * An ANSI-style <code>JOIN</code> providing a inner join between two tables. Any |
| * unmatched rows in either table of the join should be discarded. |
| */ |
| public static int INNER_JOIN = 1; |
| |
| /** |
| * An ANSI-style <code>JOIN</code> providing a left outer join between two |
| * tables. In SQL, this is described where all records should be |
| * returned from the left side of the JOIN statement. |
| */ |
| public static int LEFT_OUTER_JOIN = 2; |
| |
| /** |
| * An ANSI-style <code>JOIN</code> providing a right outer join between |
| * two tables. In SQL, this is described where all records from the |
| * table on the right side of the JOIN statement even if the table |
| * on the left has no matching record. |
| */ |
| public static int RIGHT_OUTER_JOIN = 3; |
| |
| /** |
| * An ANSI-style <code>JOIN</code> providing a full JOIN. Specifies that all |
| * rows from either table be returned regardless of matching |
| * records on the other table. |
| */ |
| public static int FULL_JOIN = 4; |
| |
| |
| } |
