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/*
========== licence begin GPL
Copyright (C) 2002-2003 SAP AG
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
========== licence end
*/
package com.sap.dbtech.jdbc;
import java.util.ArrayList;
/**
* Information about structure and layout of a database procedure parameter.
*/
public class DBProcParameterInfo {
public static final int ABAPTABLE = 1;
public static final int STRUCTURE = 2;
private int type;
private String typeName;
private String sqlTypeName;
private String baseTypeName;
private int length;
private int precision;
private ArrayList typeElements;
/**
* Creates a new DB procedure parameter info.
* @param datatype The data type as read from DBPROCPARAMINFO.
* @param len The length information from DBPROCPARAMINFO.
* @param dec The precision information from DBPROCPARAMINFO.
*/
public DBProcParameterInfo(String datatype, int len, int dec) {
this.typeName = datatype;
this.length = len;
this.precision = dec;
if(datatype.equals("ABAPTABLE")) {
this.type = ABAPTABLE;
this.typeElements = new ArrayList();
} else if(datatype.equals("STRUCTURE")) {
this.type = STRUCTURE;
this.typeElements = new ArrayList();
}
}
public void addStructureElement(String typeName,
String codeType,
int length,
int precision,
int offset,
int asciiOffset,
int unicodeOffset) {
if(this.typeElements == null) {
return;
} else {
this.typeElements.add(new StructureElement(typeName, codeType,
length, precision, offset, asciiOffset, unicodeOffset));
}
}
public static class StructureElement {
StructureElement(String typeName, String codeType, int length,
int precision, int offset, int asciiOffset, int unicodeOffset) {
this.typeName = typeName;
this.codeType = codeType;
this.length = length;
this.precision = precision;
this.offset = offset;
this.asciiOffset = asciiOffset;
this.unicodeOffset = unicodeOffset;
}
public String typeName;
public String codeType;
public int length;
public int precision;
public int offset;
public int asciiOffset;
public int unicodeOffset;
public String getSQLTypeName() {
if(typeName.equals("CHAR")) {
return typeName + "(" + length + ") " + codeType;
} else if(typeName.equals("FIXED")) {
return typeName + "(" + length + ", " + precision +")";
} else if(typeName.equals("BOOLEAN")) {
return typeName;
} else {
return typeName + "(" + length + ")";
}
}
}
public int getMemberCount() {
return this.typeElements.size();
}
public int getType() {
return this.type;
}
public StructureElement getMember(int index) {
return (StructureElement) this.typeElements.get(index);
}
public String getSQLTypeName() {
if(this.sqlTypeName == null) {
StringBuffer typeBuffer = new StringBuffer();
StringBuffer baseType = new StringBuffer();
String close = ")";
if(type == ABAPTABLE) {
if(this.typeElements.size()==1) {
StructureElement el = (StructureElement) this.typeElements.get(0);
if(el.typeName.equals("CHAR")) {
if(el.codeType.equals("ASCII")) {
this.sqlTypeName = "CHARACTER STREAM";
} else if(el.codeType.equals("BYTE")) {
this.sqlTypeName = "BYTE STREAM";
}
} else if(el.typeName.equals("WYDE")) {
this.sqlTypeName = "CHARACTER STREAM";
}
typeBuffer.append("STREAM(");
} else {
typeBuffer.append("STREAM(STRUCTURE(");
close="))";
}
} else {
typeBuffer.append("STRUCTURE(");
}
for(int i=0; i<this.typeElements.size(); ++i) {
if(i!=0) {
baseType.append(", ");
typeBuffer.append(", ");
}
StructureElement el = (StructureElement) (this.typeElements.get(i));
typeBuffer.append(el.getSQLTypeName());
baseType.append(el.getSQLTypeName());
}
typeBuffer.append(close);
this.sqlTypeName = typeBuffer.toString();
this.baseTypeName = baseType.toString();
}
return this.sqlTypeName;
}
public String getBaseTypeName() {
return this.baseTypeName;
}
}
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