/*
* Microsoft JDBC Driver for SQL Server
*
* Copyright(c) Microsoft Corporation All rights reserved.
*
* This program is made available under the terms of the MIT License. See the LICENSE file in the project root for more information.
*/
package com.microsoft.sqlserver.jdbc;
/**
* UDTTDSHeader is helper class used to read and write the UDT TDS 7.2x header from a TDS stream.
*
* Typical UDT header->
*
* UDT header with schema/type/assembly information
*
* F0
* 21 00 <- MaxLen (2 byte length)
* 03|54 00 44 00 53 00 <- DB_NAME (1 byte length in UNICODE chars)
* 03|64 00 62 00 6F 00 <- SCHEMA_NAME (1 byte length in UNICODE chars)
* 12|4D 00 79 00 43 00 68 00 75 00 6E 00 6B 00 79 <- TYPE_NAME (1 byte length in UNICODE chars)
* 00 46 00 75 00 6E 00 6B 00 79 00 54 00 79 00 70 00 65 00 32 00
* 63 00|4D 00 79 00 43 00 68 00 75 00 6E 00 6B 00 <- ASSEMBLY_QUALIFIED_NAME (2 byte length in UNICODE chars)
* 79 00 46 00 75 00 6E 00 6B 00 79 00 54 00 79 00
* 70 00 65 00 32 00 2C 00 20 00 53 00 71 00 6C 00
*
*/
final class UDTTDSHeader {
private final int maxLen; // MaxLen read from UDT type (not used when writing).
private final String databaseName; // Database name where UDT type resides.
private final String schemaName; // Schema where UDT resides.
private final String typeName; // Type name of UDT.
private final String assemblyQualifiedName; // Assembly qualified name of UDT.
UDTTDSHeader(TDSReader tdsReader) throws SQLServerException {
maxLen = tdsReader.readUnsignedShort();
databaseName = tdsReader.readUnicodeString(tdsReader.readUnsignedByte());
schemaName = tdsReader.readUnicodeString(tdsReader.readUnsignedByte());
typeName = tdsReader.readUnicodeString(tdsReader.readUnsignedByte());
assemblyQualifiedName = tdsReader.readUnicodeString(tdsReader.readUnsignedShort());
}
int getMaxLen() {
return maxLen;
}
String getTypeName() {
return typeName;
}
}