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author | Warren Levy <warrenl@cygnus.com> | 2000-04-11 09:21:53 +0000 |
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committer | Warren Levy <warrenl@gcc.gnu.org> | 2000-04-11 09:21:53 +0000 |
commit | d0123c54ca7a18cb075064502bdec4961e7eeb79 (patch) | |
tree | 4de12baf9d56287237bde8a1b1c9cf68bccf813b /libjava/java/sql/ResultSetMetaData.java | |
parent | 3a2b2c7a2062986f770f9860da7499850a5539cf (diff) | |
download | gcc-d0123c54ca7a18cb075064502bdec4961e7eeb79.zip gcc-d0123c54ca7a18cb075064502bdec4961e7eeb79.tar.gz gcc-d0123c54ca7a18cb075064502bdec4961e7eeb79.tar.bz2 |
ObjectStreamException.java: New file.
* java/io/ObjectStreamException.java: New file.
* java/io/OptionalDataException.java: New file.
* java/io/StreamCorruptedException.java: New file.
* java/math/BigDecimal.java: New file.
* java/sql/CallableStatement.java: New file.
* java/sql/Connection.java: New file.
* java/sql/DataTruncation.java: New file.
* java/sql/DatabaseMetaData.java: New file.
* java/sql/Date.java: New file.
* java/sql/Driver.java: New file.
* java/sql/DriverManager.java: New file.
* java/sql/DriverPropertyInfo.java: New file.
* java/sql/PreparedStatement.java: New file.
* java/sql/ResultSet.java: New file.
* java/sql/ResultSetMetaData.java: New file.
* java/sql/SQLException.java: New file.
* java/sql/SQLWarning.java: New file.
* java/sql/Statement.java: New file.
* java/sql/Time.java: New file.
* java/sql/Timestamp.java: New file.
* java/sql/Types.java: New file.
* Makefile.am: Added above new files.
* Makefile.in: Rebuilt.
* mauve-libgcj: Turned on java.math, java.sql and java.security tests.
* java/net/MulticastSocket.java (MulticastSocket): Pass values a la
DatagramSocket constructor instead of null.
java.sql is JDK 1.1 Compliant
From-SVN: r33077
Diffstat (limited to 'libjava/java/sql/ResultSetMetaData.java')
-rw-r--r-- | libjava/java/sql/ResultSetMetaData.java | 362 |
1 files changed, 362 insertions, 0 deletions
diff --git a/libjava/java/sql/ResultSetMetaData.java b/libjava/java/sql/ResultSetMetaData.java new file mode 100644 index 0000000..ca6a69b --- /dev/null +++ b/libjava/java/sql/ResultSetMetaData.java @@ -0,0 +1,362 @@ +/* ResultSetMetaData.java -- Returns information about the ResultSet + Copyright (C) 1999 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA +02111-1307 USA. + +As a special exception, if you link this library with other files to +produce an executable, this library does not by itself cause the +resulting executable to be covered by the GNU General Public License. +This exception does not however invalidate any other reasons why the +executable file might be covered by the GNU General Public License. */ + + +package java.sql; + +/** + * This interface provides a mechanism for obtaining information about + * the columns that are present in a <code>ResultSet</code>. + * <p> + * Note that in this class column indexes start at 1, not 0. + * + * @author Aaron M. Renn (arenn@urbanophile.com) + */ +public interface ResultSetMetaData +{ + +/** + * The column does not allow NULL's. + */ +public static final int columnNoNulls = 0; + +/** + * The column allows NULL's. + */ +public static final int columnNullable = 1; + +/** + * It is unknown whether or not the column allows NULL's. + */ +public static final int columnNullableUnknown = 2; + +/*************************************************************************/ + +/** + * This method returns the number of columns in the result set. + * + * @return The number of columns in the result set. + * + * @exception SQLException If an error occurs. + */ +public abstract int +getColumnCount() throws SQLException; + +/*************************************************************************/ + +/** + * This method test whether or not the column is an auto-increment column. + * Auto-increment columns are read-only. + * + * @param index The index of the column to test. + * + * @return <code>true</code> if the column is auto-increment, <code>false</code> + * otherwise. + * + * @exception SQLException If an error occurs. + */ +public abstract boolean +isAutoIncrement(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method tests whether or not a column is case sensitive in its values. + * + * @param index The index of the column to test. + * + * @return <code>true</code> if the column value is case sensitive, + * <code>false</code> otherwise. + * + * @exception SQLException If an error occurs. + */ +public abstract boolean +isCaseSensitive(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method tests whether not the specified column can be used in + * a WHERE clause. + * + * @param index The index of the column to test. + * + * @return <code>true</code> if the column may be used in a WHERE clause, + * <code>false</code> otherwise. + * + * @exception SQLException If an error occurs. + */ +public abstract boolean +isSearchable(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method tests whether or not the column stores a monetary value. + * + * @param index The index of the column to test. + * + * @return <code>true</code> if the column contains a monetary value, + * <code>false</code> otherwise. + * + * @exception SQLException If an error occurs. + */ +public abstract boolean +isCurrency(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method returns a value indicating whether or not the specified + * column may contain a NULL value. + * + * @param index The index of the column to test. + * + * @return A constant indicating whether or not the column can contain NULL, + * which will be one of <code>columnNoNulls</code>, + * <code>columnNullable</code>, or <code>columnNullableUnknown</code>. + * + * @exception SQLException If an error occurs. + */ +public abstract int +isNullable(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method tests whether or not the value of the specified column + * is signed or unsigned. + * + * @param index The index of the column to test. + * + * @return <code>true</code> if the column value is signed, <code>false</code> + * otherwise. + * + * @exception SQLException If an error occurs. + */ +public abstract boolean +isSigned(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method returns the maximum number of characters that can be used + * to display a value in this column. + * + * @param index The index of the column to check. + * + * @return The maximum number of characters that can be used to display a + * value for this column. + * + * @exception SQLException If an error occurs. + */ +public abstract int +getColumnDisplaySize(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method returns a string that should be used as a caption for this + * column for user display purposes. + * + * @param index The index of the column to check. + * + * @return A display string for the column. + * + * @exception SQLException If an error occurs. + */ +public abstract String +getColumnLabel(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method returns the name of the specified column. + * + * @param index The index of the column to return the name of. + * + * @return The name of the column. + * + * @exception SQLException If an error occurs. + */ +public abstract String +getColumnName(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method returns the name of the schema that contains the specified + * column. + * + * @param index The index of the column to check the schema name for. + * + * @return The name of the schema that contains the column. + * + * @exception SQLException If an error occurs. + */ +public abstract String +getSchemaName(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method returns the precision of the specified column, which is the + * number of decimal digits it contains. + * + * @param index The index of the column to check the precision on. + * + * @return The precision of the specified column. + * + * @exception SQLException If an error occurs. + */ +public abstract int +getPrecision(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method returns the scale of the specified column, which is the + * number of digits to the right of the decimal point. + * + * @param index The index column to check the scale of. + * + * @return The scale of the column. + * + * @exception SQLException If an error occurs. + */ +public abstract int +getScale(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method returns the name of the table containing the specified + * column. + * + * @param index The index of the column to check the table name for. + * + * @return The name of the table containing the column. + * + * @exception SQLException If an error occurs. + */ +public abstract String +getTableName(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method returns the name of the catalog containing the specified + * column. + * + * @param index The index of the column to check the catalog name for. + * + * @return The name of the catalog containing the column. + * + * @exception SQLException If an error occurs. + */ +public abstract String +getCatalogName(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method returns the SQL type of the specified column. This will + * be one of the constants from <code>Types</code>. + * + * @param index The index of the column to check the SQL type of. + * + * @return The SQL type for this column. + * + * @exception SQLException If an error occurs. + * + * @see Types + */ +public abstract int +getColumnType(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method returns the name of the SQL type for this column. + * + * @param index The index of the column to check the SQL type name for. + * + * @return The name of the SQL type for this column. + * + * @exception SQLException If an error occurs. + */ +public abstract String +getColumnTypeName(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method tests whether or not the specified column is read only. + * + * @param index The index of the column to check. + * + * @return <code>true</code> if the column is read only, <code>false</code> + * otherwise. + * + * @exception SQLException If an error occurs. + */ +public abstract boolean +isReadOnly(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method tests whether or not the column may be writable. This + * does not guarantee that a write will be successful. + * + * @param index The index of the column to check for writability. + * + * @return <code>true</code> if the column may be writable, + * <code>false</code> otherwise. + * + * @exception SQLException If an error occurs. + */ +public abstract boolean +isWritable(int index) throws SQLException; + +/*************************************************************************/ + +/** + * This method tests whether or not the column is writable. This + * does guarantee that a write will be successful. + * + * @param index The index of the column to check for writability. + * + * @return <code>true</code> if the column is writable, + * <code>false</code> otherwise. + * + * @exception SQLException If an error occurs. + */ +public abstract boolean +isDefinitelyWritable(int index) throws SQLException; + +} // interface ResultSetMetaData + |