Official | HULFT IoT EdgeStreaming Adapter Reference First Edition: July 1, 2021
Writing
The temporary table adapter under Basic uses a table that temporarily stores values (temporary table).
After values are written to the temporary table in the writing operation, the values can be obtained through the monitoring records operation or the get table status operation, and then used. For details, refer to the sections below.
You can display the writing operation screen by displaying the script canvas on the Designer screen, clicking the following items in the following order, and then dragging and dropping the component icon onto the script canvas:
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Tool palette > Basic > Temporary table > Writing
Figure 2.4 Writing operation screen
(1) Field list
This is a list of the fields to configure for the writing operation.
|
Field Name |
Initial Value |
Setting Value |
Omission |
Notes |
|
|---|---|---|---|---|---|
|
Name |
|
Single-byte alphanumeric characters and certain symbols (*1) |
- |
A value that begins with a single-byte alphabetic character |
|
|
Input data |
(No input data) |
Name of the input data component |
- |
Select from list (*2) |
|
|
Required settings |
|||||
|
|
Table |
|
Temporary table name |
- |
|
|
Schema definition |
|
Schema definition for the temporary table that you specified for Table |
- |
|
|
|
Comment |
|||||
|
|
Comment |
|
Characters |
✓ |
|
|
✓ |
: |
Possible to omit |
|
- |
: |
Impossible to omit |
|
*1 |
: |
Only "_" (underscore) can be specified. |
|
*2 |
: |
When component icons for input or conversion are placed on the script canvas, the options are displayed in the list. |
(2) Description of each field
This section explains each of the fields to configure for the writing operation.
After changing these settings, click Finish to save the settings.
Click Cancel to discard the changes.
- Name
-
Name of the writing operation component
Single-byte alphanumeric characters and "_" (underscore) can be used.
Use a value that begins with a single-byte alphabetic character.
- Input data
-
Selection of the name of the component of the input data that is to be output to the temporary table
From the input data component names displayed in the list, select the name of the component for standard output.
Required settings
- Table
-
Temporary table that is the target for writing
Select the temporary table that defines the schema.
When you click Add, the temporary table settings screen appears.
For details on the temporary table settings screen, refer to Temporary table settings.
When you click Edit list..., the editing screen for the resource list appears.
For details on the editing screen for the resource list, refer to Edit resource list.
- Schema definition
-
Schema definition for the temporary table
Display the schema definition by performing Update schema on the schema of the temporary table that you selected for Table.
The schema definition that you set in Table is displayed in the schema of the output destination in Mapper editor.
For details on the Mapper editor, refer to Mapper Reference.
Comment
- Comment
-
Comment regarding the writing operation
You can enter a comment.
Official | HULFT IoT EdgeStreaming Adapter Reference First Edition: July 1, 2021