/* 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.
*/
package org.hsqldb.types;
import org.hsqldb.HsqlNameManager.HsqlName;
import org.hsqldb.SchemaObject;
import org.hsqldb.Session;
import org.hsqldb.SqlInvariants;
import org.hsqldb.Tokens;
import org.hsqldb.lib.OrderedHashSet;
import org.hsqldb.rights.Grantee;
/**
* Implementation of CHARACTER SET objects.<p>
*
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 1.9.0
* @since 1.9.0
*/
public class Charset implements SchemaObject {
public static final int[][] uppercaseLetters = new int[][] {
{
'A', 'Z'
}
};
public static final int[][] unquotedIdentifier = new int[][] {
{
'0', '9'
}, {
'A', 'Z'
}, {
'_', '_'
}
};
public static final int[][] basicIdentifier = new int[][] {
{
'0', '9'
}, {
'A', 'Z'
}, {
'_', '_'
}, {
'a', 'z'
}
};
HsqlName name;
public HsqlName base;
//
int[][] ranges;
public Charset(HsqlName name) {
this.name = name;
}
public int getType() {
return SchemaObject.CHARSET;
}
public HsqlName getName() {
return name;
}
public HsqlName getCatalogName() {
return name.schema.schema;
}
public HsqlName getSchemaName() {
return name.schema;
}
public Grantee getOwner() {
return name.schema.owner;
}
public OrderedHashSet getReferences() {
OrderedHashSet set = new OrderedHashSet();
set.add(base);
return set;
}
public OrderedHashSet getComponents() {
return null;
}
public void compile(Session session, SchemaObject parentObject) {}
public String getSQL() {
StringBuffer sb = new StringBuffer();
sb.append(Tokens.T_CREATE).append(' ').append(
Tokens.T_CHARACTER).append(' ').append(Tokens.T_SET).append(' ');
sb.append(name.getSchemaQualifiedStatementName());
sb.append(' ').append(Tokens.T_AS).append(' ').append(Tokens.T_GET);
sb.append(' ').append(base.getSchemaQualifiedStatementName());
return sb.toString();
}
public long getChangeTimestamp() {
return 0;
}
public static boolean isInSet(String value, int[][] ranges) {
int length = value.length();
mainLoop:
for (int index = 0; index < length; index++) {
int ch = value.charAt(index);
for (int i = 0; i < ranges.length; i++) {
if (ch > ranges[i][1]) {
continue;
}
if (ch < ranges[i][0]) {
return false;
}
continue mainLoop;
}
return false;
}
return true;
}
public static boolean startsWith(String value, int[][] ranges) {
int ch = value.charAt(0);
for (int i = 0; i < ranges.length; i++) {
if (ch > ranges[i][1]) {
continue;
}
if (ch < ranges[i][0]) {
return false;
}
return true;
}
return false;
}
public static Charset getDefaultInstance() {
return SqlInvariants.UTF16;
}
}