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  • Properties specific to the description of hbColumn variables
  • WLanguage functions that handle the hbColumn type
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Stored procedures
The hbColumn type is used to define the advanced characteristics of a column (item) in a HBase table. The characteristics of this column can be defined and modified by several WLanguage properties.
This type of variable is used by the hbReading, hbScanParameter and hbScanResult variables.
Note: See Declaring a variable for more details.
Example
// Connection
Connection is hbConnection
Connection..Server = "MyServer"
// Description of data to read
Reading is hbReading
Reading..Row = "post1"
Reading..Version = 2
// Column description
Col is hbColumn
Col..Family = "Post"
Add(Reading..Column, Col)
// Read data
MyResult is array of hbCells = hbRead(Connection, "blog", Reading)
// Display the data read
FOR EACH Cell OF MyResult DO
Trace("Column: " + Cell..Column..Qualifier + "; Value: " + ...
Cell..Value + "; timestamp: " + Cell..Timestamp)
END
Remarks

Properties specific to the description of hbColumn variables

The following properties can be used to handle a column:
Property nameType usedEffect
FamilyBufferName of the family of columns.
QualifierBufferQualifier of the column.

Note: These properties can be handled by using one of the following syntaxes:
  • <Variable Name>..<Property Name>
  • <Variable Name>.<Property Name>

WLanguage functions that handle the hbColumn type

Versions 21 and later
hbDelete
New in version 21
hbDelete
hbDelete
Deletes:
  • one or more cells from a HBase table for one or more columns.
  • a row from a HBase table.
Minimum required version
  • Version 21
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