/* Copyright (c) 2001-2016, 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;
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* 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 java.io.
Serializable;
import org.hsqldb.
Session;
import org.hsqldb.
SessionInterface;
import org.hsqldb.
Tokens;
import org.hsqldb.error.
Error;
import org.hsqldb.error.
ErrorCode;
import org.hsqldb.lib.
StringConverter;
/**
* Type implementation for OTHER type.<p>
*
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 2.0.1
* @since 1.9.0
*/
public final class
OtherType extends
Type {
static final
OtherType otherType = new
OtherType();
private
OtherType() {
super(
Types.
OTHER,
Types.
OTHER, 0, 0);
}
public int
displaySize() {
return
precision >
Integer.
MAX_VALUE ?
Integer.
MAX_VALUE
: (int)
precision;
}
public int
getJDBCTypeCode() {
return
typeCode;
}
public
Class getJDBCClass() {
return java.lang.
Object.class;
}
public
String getJDBCClassName() {
return "java.lang.Object";
}
public int
getSQLGenericTypeCode() {
// return Types.SQL_UDT;
return
typeCode;
}
public int
typeCode() {
// return Types.SQL_UDT;
return
typeCode;
}
public
String getNameString() {
return
Tokens.
T_OTHER;
}
public
String getDefinition() {
return
Tokens.
T_OTHER;
}
public
Type getAggregateType(
Type other) {
if (
other == null) {
return this;
}
if (
other ==
SQL_ALL_TYPES) {
return this;
}
if (
typeCode ==
other.
typeCode) {
return this;
}
throw
Error.
error(
ErrorCode.
X_42562);
}
public
Type getCombinedType(
Session session,
Type other, int
operation) {
return this;
}
public int
compare(
Session session,
Object a,
Object b) {
if (
a == null) {
return -1;
}
if (
b == null) {
return 1;
}
return 0;
}
public
Object convertToTypeLimits(
SessionInterface session,
Object a) {
return
a;
}
// to review - if conversion is supported, then must be serializable and wrapped
public
Object convertToType(
SessionInterface session,
Object a,
Type otherType) {
return
a;
}
public
Object convertToDefaultType(
SessionInterface session,
Object a) {
if (
a instanceof
Serializable) {
return
a;
}
throw
Error.
error(
ErrorCode.
X_42561);
}
public
String convertToString(
Object a) {
if (
a == null) {
return null;
}
return
StringConverter.
byteArrayToHexString(
((
JavaObjectData)
a).
getBytes());
}
public
String convertToSQLString(
Object a) {
if (
a == null) {
return
Tokens.
T_NULL;
}
return
StringConverter.
byteArrayToSQLHexString(
((
JavaObjectData)
a).
getBytes());
}
public
Object convertSQLToJava(
SessionInterface session,
Object a) {
if (
a == null) {
return null;
}
return ((
JavaObjectData)
a).
getObject();
}
public boolean
canConvertFrom(
Type otherType) {
if (
otherType.
typeCode ==
typeCode) {
return true;
}
if (
otherType.
typeCode ==
Types.
SQL_ALL_TYPES) {
return true;
}
return false;
}
public boolean
isObjectType() {
return true;
}
public static
OtherType getOtherType() {
return
otherType;
}
}