/* Copyright (c) 2001-2017, The HSQL Development Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the HSQL Development Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.hsqldb.jdbc;
import java.lang.reflect.
Field;
// fredt@users - 1.9.0 rewritten as simple structure derived from JDBCResultSetMetaData
/**
* Provides a site for holding the ResultSetMetaData for individual ResultSet
* columns. In 2.0 it is implemented as a simple data structure derived
* from calls to JDBCResultSetMetaData methods.
* purposes.<p>
*
* @author Campbell Burnet (campbell-burnet@users dot sourceforge.net)
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 2.0
* @since HSQLDB 1.7.2
*/
public final class
JDBCColumnMetaData {
/** The column's table's catalog name. */
public
String catalogName;
/**
* The fully-qualified name of the Java class whose instances are
* manufactured if the method ResultSet.getObject is called to retrieve
* a value from the column.
*/
public
String columnClassName;
/** The column's normal max width in chars. */
public int
columnDisplaySize;
/** The suggested column title for use in printouts and displays. */
public
String columnLabel;
/** The column's name. */
public
String columnName;
/** The column's SQL type. */
public int
columnType;
/** The column's value's number of decimal digits. */
public int
precision;
/** The column's value's number of digits to right of the decimal point. */
public int
scale;
/** The column's table's schema. */
public
String schemaName;
/** The column's table's name. */
public
String tableName;
/** Whether the value of the column are automatically numbered. */
public boolean
isAutoIncrement;
/** Whether the column's value's case matters. */
public boolean
isCaseSensitive;
/** Whether the values in the column are cash values. */
public boolean
isCurrency;
/** Whether a write on the column will definitely succeed. */
public boolean
isDefinitelyWritable;
/** The nullability of values in the column. */
public int
isNullable;
/** Whether the column's values are definitely not writable. */
public boolean
isReadOnly;
/** Whether the column's values can be used in a where clause. */
public boolean
isSearchable;
/** Whether values in the column are signed numbers. */
public boolean
isSigned;
/** Whether it is possible for a write on the column to succeed. */
public boolean
isWritable;
/**
* Retrieves a String representation of this object.
*
* @return a String representation of this object
*/
public
String toString() {
try {
return
toStringImpl();
} catch (
Exception e) {
return super.toString() + "[" +
e + "]";
}
}
/**
* Provides the implementation of the toString() method.
*
* @return a String representation of this object
*/
private
String toStringImpl() throws
Exception {
StringBuffer sb;
Field[]
fields;
Field field;
sb = new
StringBuffer();
sb.
append('[');
fields =
getClass().
getFields();
int
len =
fields.length;
for (int
i = 0;
i <
len;
i++) {
field =
fields[
i];
sb.
append(
field.
getName());
sb.
append('=');
sb.
append(
field.
get(this));
if (
i + 1 <
len) {
sb.
append(',');
sb.
append(' ');
}
}
sb.
append(']');
return
sb.
toString();
}
}