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HSQLDB example source code file (jdbcColumnMetaData.java)
The HSQLDB jdbcColumnMetaData.java source code/* Copyright (c) 2001-2008, 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; /** * Provides a site for holding the ResultSetMetaData for individual ResultSet * columns. <p> * * @author boucherb@users * @version 1.7.2 * @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 database-specific type name. */ public String columnTypeName; /** 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 Sring 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 Sring 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(); } } Other HSQLDB examples (source code examples)Here is a short list of links related to this HSQLDB jdbcColumnMetaData.java source code file: |
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