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363 lines (329 loc) · 9.76 KB
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/*
* libTML: A BEEP based Messaging Suite
* Copyright (C) 2015 wobe-systems GmbH
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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
*
* You may find a copy of the license under this software is released
* at COPYING file. This is LGPL software: you are welcome to develop
* proprietary applications using this library without any royalty or
* fee but returning back any change, improvement or addition in the
* form of source code, project image, documentation patches, etc.
*
* Homepage:
* http://www.libtml.org
*
* For professional support contact us:
*
* wobe-systems GmbH
*/
package com.tmlsidex.sidex;
import java.util.ArrayList;
import java.util.Dictionary;
import java.util.Enumeration;
import java.util.Hashtable;
import com.tmlsidex.jni.SidexErr;
import com.tmlsidex.jni.SidexType;
import com.tmlsidex.jni.TmlSidexException;
/**
* @ingroup sdxClasses
* @brief Implementation of a Table type variant.
*/
public class SDXTable extends SDXBase{
// Member
int m_iIterator= 0;
/**
* @brief constructs a newempty SDXTable object
*/
public SDXTable(){
m_var = m_sidex.sidex_Variant_New_Table();
}
/**
* @brief constructs a new instance to access an existing low level handle
*
* @param vHandle handle of a SIDEX Table type variant
* @param thisown instance is owner of the SIDEX variant handle
* @throws TmlSidexException
*/
public SDXTable(long vHandle, boolean thisown) throws TmlSidexException{
if (!SDXUtils.sidexVariantEqualsType(m_sidex, vHandle, SidexType.SIDEX_DATA_TYPE_TABLE)){
throw new TmlSidexException("SDXTable::SDXTable / Error "+Integer.toString(SidexErr.SIDEX_ERR_WRONG_TYPE), SidexErr.SIDEX_ERR_WRONG_TYPE);
}
else{
m_bThisOwn = thisown;
m_var = vHandle;
}
}
/**
* @brief destructor
*/
protected void finalize() throws Throwable {
// Internal destructrion:
// Super destructrion
super.finalize();
}
/**
* @brief check if a column name exists
*
* @return True if the column name exists
* @throws TmlSidexException
*/
public boolean hasColumn(String name) throws TmlSidexException{
boolean bRet = m_sidex.sidex_Variant_Table_HasColumn(m_var, name);
return bRet;
}
/**
* @brief get column names
*
* @return String array of column names
*
* @throws TmlSidexException
*/
public String[] getColumnNames() throws TmlSidexException{
long names = m_sidex.sidex_Variant_Table_ColumnNames(m_var);
int length = m_sidex.sidex_Variant_List_Size (names);
String[] strRet = new String[length];
for (int i = 0; i < length; ++i){
long lVar = m_sidex.sidex_Variant_List_Get (names, i);
String sName = m_sidex.sidex_Variant_As_String (lVar);
strRet[i] = sName;
}
m_sidex.sidex_Variant_DecRef(names);
return strRet;
}
/**
* @brief add a column
*
* If row data is already added to the table, a default SDXNone value is set.
*
* @param key name of the column
*
* @throws TmlSidexException
*/
public void addColumn(String key) throws TmlSidexException{
m_sidex.sidex_Variant_Table_AddColumn(m_var, key);
}
/**
* @brief add a column with default value
*
* If row data is already added to the table, defaultValue is set.
*
* @param key name of the column
* @param defaultValue default value
*
* @throws TmlSidexException
*/
public void addColumn(String key, SDXBase defaultValue) throws TmlSidexException{
m_sidex.sidex_Variant_Table_AddColumn(m_var, key);
int iRows = this.rows();
for (int i = 0; i < iRows; ++i){
this.setField(i, key, defaultValue);
}
}
/**
* @brief remove a column
*
* @param key name of the column to delete
*
* @throws TmlSidexException
*/
public void deleteColumn(String key) throws TmlSidexException{
m_sidex.sidex_Variant_Table_DeleteColumn(m_var, key);
}
/**
* @brief add a row
*
* Each field will be filled with an SDXNone value
*
* @return row index of the added row
*
* @throws TmlSidexException
*/
public int addRow() throws TmlSidexException{
int iRowIdx = m_sidex.sidex_Variant_Table_AddRow(m_var);
return iRowIdx;
}
/**
* @brief add a row with values
*
* @param rowData Dictionary of column names and values. A subset of existing columns is possible.
*
* @return row index of the added row
*
* @throws TmlSidexException
*/
public int addRow(Dictionary<String, SDXBase> rowData) throws TmlSidexException{
int iRowIdx = m_sidex.sidex_Variant_Table_AddRow(m_var);
int size = rowData.size();
if (0 < size){
for (Enumeration<String> keys = rowData.keys(); keys.hasMoreElements();){
String key = keys.nextElement();
SDXBase value = rowData.get(key);
this.setField(iRowIdx, key, value);
}
}
return iRowIdx;
}
/**
* @brief delete a row
*
* @param rowIndex index of the row to delete
*
* @throws TmlSidexException
*/
public void deleteRow(int rowIndex) throws TmlSidexException{
m_sidex.sidex_Variant_Table_DeleteRow(m_var, rowIndex);
}
/**
* @brief get the name of a column
*
* @param colIndex column index
*
* @return name of the column
*
* @throws TmlSidexException
*/
public String getColumnName(int colIndex) throws TmlSidexException{
String strRet = m_sidex.sidex_Variant_Table_GetColumnName(m_var, colIndex);
return strRet;
}
/**
* @brief get a row
*
* @param rowIndex row index
*
* @return Dictionary representing the the column name / value pairs of the row
*
* @throws TmlSidexException
*/
public Dictionary<String, SDXBase> getRow(int rowIndex) throws TmlSidexException{
long variant = m_sidex.sidex_Variant_Table_GetRow(m_var, rowIndex);
SDXDict dict = new SDXDict(variant, false);
Dictionary<String, SDXBase> retDict = new Hashtable<String, SDXBase>();
int length = dict.length();
if (0 < length){
String[] keys = dict.getKeys();
for (int i = 0; i < length; ++i){
SDXBase value = dict.getValue(keys[i]);
retDict.put(keys[i], value);
}
keys = null;
}
dict = null;
return retDict;
}
/**
* @brief get field value
*
* @param rowIndex row index
* @param columnName name of the column
*
* @return SDXBase driven object depending of the data type
*
* @throws TmlSidexException
*/
public SDXBase getField(int rowIndex, String columnName) throws TmlSidexException{
long variant = m_sidex.sidex_Variant_Table_GetField(m_var, rowIndex, columnName);
SDXBase retVar = SDXUtils.sidexVariantAsJavaObject(m_sidex, variant);
return retVar;
}
/**
* @brief set a field value to SDXNone
*
* @param rowIndex row index
* @param columnName name of the column
*
* @throws TmlSidexException
*/
public void setField(int rowIndex, String columnName) throws TmlSidexException{
long variant = m_sidex.sidex_Variant_New_None();
m_sidex.sidex_Variant_Table_SetField(m_var, rowIndex, columnName, variant);
m_sidex.sidex_Variant_DecRef(variant);
}
/**
* @brief set a field value to SDXNone
*
* @param rowIndex row index
* @param columnName name of the column
* @param sVal the value to set of type
* integer, long, float, double, boolean, Integer, Long, Float, Double, Boolean, String or SDXBase
*
* @throws TmlSidexException
*/
public void setField(int rowIndex, String columnName, Object sVal) throws TmlSidexException{
long variant = SDXUtils.javaObjectAsSidexVariant(m_sidex, sVal);
m_sidex.sidex_Variant_Table_SetField(m_var, rowIndex, columnName, variant);
m_sidex.sidex_Variant_DecRef(variant);
}
/**
* @brief delete all rows
*
* @throws TmlSidexException
*/
public void clear() throws TmlSidexException{
m_sidex.sidex_Variant_Table_DeleteRows(m_var);
}
/**
* @brief get column count
*
* @return number of columns
*
* @throws TmlSidexException
*/
public int columns() throws TmlSidexException{
int columns = m_sidex.sidex_Variant_Table_Columns(m_var);
return columns;
}
/**
* @brief get row count
*
* @return number of rows
*
* @throws TmlSidexException
*/
public int rows() throws TmlSidexException{
int rows = m_sidex.sidex_Variant_Table_Rows(m_var);
return rows;
}
/**
* @brief set cursor to the first row
* @see SDXTable#next()
*/
public void first(){
m_iIterator = 0;
}
/**
* @brief get next row
*
* @return Dictionary representing the the column name / value pairs of the row. If end is reached null will be returned.
*
* @throws TmlSidexException
*/
public Dictionary<String, SDXBase> next() throws TmlSidexException{
Dictionary<String, SDXBase> retValue = null;
try{
retValue = this.getRow(m_iIterator);
++m_iIterator;
}
catch (TmlSidexException e){
if (SidexErr.SIDEX_ERR_NOCONTENT != e.getError()){
throw e;
}
}
return retValue;
}
}