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HSQLDB example source code file (ConstraintCore.java)
The HSQLDB ConstraintCore.java source code/* * For work developed by the HSQL Development Group: * * Copyright (c) 2001-2010, 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. * * * * For work originally developed by the Hypersonic SQL Group: * * Copyright (c) 1995-2000, The Hypersonic SQL 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 Hypersonic SQL 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 THE HYPERSONIC SQL GROUP, * 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. * * This software consists of voluntary contributions made by many individuals * on behalf of the Hypersonic SQL Group. */ package org.hsqldb; import org.hsqldb.HsqlNameManager.HsqlName; /** * This class consists of the data structure for a Constraint. This * structure is shared between two Constraint Objects that together form a * foreign key constraint. This simplifies structural modifications to a * table. When changes to the column indexes are applied to the table's * Constraint Objects, they are reflected in the Constraint Objects of any * other table that shares a foreign key constraint with the modified * table. * * New class based on Hypersonic original * * @author Thomas Mueller (Hypersonic SQL Group) * @version 1.7.1 * @since 1.7.1 */ class ConstraintCore { // fkName and pkName are for foreign keys only HsqlName fkName; HsqlName pkName; // iLen is the number of columns involved in the constraint. // it is equal to the size of iColMain but can be smaller than the // size of iColRef int colLen; // Main is the sole table in a UNIQUE constraint // Or the table that is referenced by FOREIGN KEY ... REFERENCES Table mainTable; int[] mainColArray; Index mainIndex; // Ref is the table that has a reference to the main table Table refTable; int[] refColArray; Index refIndex; int deleteAction; int updateAction; // Expression check; TableFilter checkFilter; } Other HSQLDB examples (source code examples)Here is a short list of links related to this HSQLDB ConstraintCore.java source code file: |
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