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getvaluesfromatwodimensionalvalueobjectscripts [2024/07/25 12:54] – created amywgetvaluesfromatwodimensionalvalueobjectscripts [2024/07/25 13:01] (current) – amyw
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 TwoDimensionalValueObject (2DVO) is a object that can hold a two dimensional array of ValueObjects. This makes it convenient to store values from a database table. The data is stored in column format with each column being represented by a vector. There are n of these where n is the number of rows. All these are stored in a single vector "values".  TwoDimensionalValueObject (2DVO) is a object that can hold a two dimensional array of ValueObjects. This makes it convenient to store values from a database table. The data is stored in column format with each column being represented by a vector. There are n of these where n is the number of rows. All these are stored in a single vector "values". 
  
 +That is, the size of the Vector is the number of rows of the data. The organization is: Vector 'Values' (size()== number of columns) VectorColumn0 [Row0Value, Row1Value, ...] (size() = number of rows) VectorColumn1 [Row0Value, Row1Value, ...] VectorColumn2 [Row0Value, Row1Value, ...] .. 
  
-That is, the size of the Vector is the number of rows of the data. That is, the organization is: Vector 'Values' (size()== number of columns) VectorColumn0 [Row0Value, Row1Value, ...] (size() = number of rows) VectorColumn1 [Row0Value, Row1Value, ...] VectorColumn2 [Row0Value, Row1Value, ...] .. getColumnCount() returns values.size() getRowCount() returns values.elementAt(0)).size() The data is square, that is, no column values are missing, no rows are short.+getColumnCount() returns values.size();  getRowCount() returns values.elementAt(0)).size(). The data is square, that is, no column values are missing, no rows are short.
  
 Overall, The core idea  of 2DVO is to represent each column as a vector and then store these vectors in a main vector. This structure allows for efficient access to rows and columns. Overall, The core idea  of 2DVO is to represent each column as a vector and then store these vectors in a main vector. This structure allows for efficient access to rows and columns.
  
 +The following code snippet demonstrates how to extract data from a TwoDimensionalValueObject and populate a java.util.ArrayList with the objects in an object called "dataObject":
 +
 +<code>
 +//1. Create a variable to store the 2DVO object values in a java.util.ArrayList
 +
 +var dataArrayList = new java.util.ArrayList();
 +
 +//2. Get all data from the database by using Database Raw Table Lookup, the output is in a 2D value object with rows and columns. Asssigne the output to a variable "dataResult:
 +
 + var dataResult = 2DVO table output; 
 +
 +// Count the rows of the table using vector.getRowCount() method
 +
 +rowCount = dataResult.getRowCount();
 +
 +for (var i = 0; i < rowCount; i++) {
 +    // If want to get all the objects, each row is one object
 +    var rowData = dataResult.getRow(i);
 +
 +    // below codes use vector.getValueAt(i, column_index) method to retrieve the values of a specific column and assign it to the corresponding property in the SomeDataObject instance
 +
 +    // Create a new object (replace with your actual object type)
 +    var dataObject = new SomeDataObject();
 +
 +    
 +    // To access properties and populate dataObject
 +
 +         dataObject.property1 =dataResult.getValueAt (i, 0);
 + dataObject.property2=dataResult.getValueAt(i, 1);
 + dataObject.property3 =dataResult.getValueAt(i, 2);
 + ...
 + dataObject.property6 = dataResult.getValueAt(i, 5);
 + dataObject.property7 = dataResult.getValueAt(i, 6);
 + ....
 +
 +
 +    // Add each data object to the dataArrayList
 +    dataArrayList.add(dataObject);
 +}
 +
 +</code>
  
-The folowing code snippet demonstrates how to extract data from a  
-TwoDimensionalValueObject and populate a java.util.ArrayList with the objects in an object called "dataObject": 
  
getvaluesfromatwodimensionalvalueobjectscripts.1721926449.txt.gz · Last modified: by amyw

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