HStore Mask (HStoreMaskGenerator)

The HStore Mask generator runs selected generators on specified key values in an HStore column in a PostgreSQL database. HStore columns contain a set of key-value pairs.

Link object structure

For the HStore Mask generator, there is a link object for each path expression value to assign a generator to.

The generator does not itself support consistency or differential privacy.

The metadata object is populated from the HStoreMaskMetadata object. It includes:

• pathExpression, which is the path expression that identifies the value to apply the sub-generator to.

• The subGeneratorMetadata object, which identifies and configures the sub-generator.

{
  "schema": "string",
  "table": "string",
  "column": "string",
  "metadata": {
    "generatorId": "HStoreMaskGenerator",
    "presetId": "string",
    "customValueProcessor": "string",  //If custom value processor assigned to the generator
    "pathExpression": "string",
    "subGeneratorMetadata": {
      "generatorId": "string",
      "presetId": "string",
      //Metadata for the selected sub-generator
      "customValueProcessor": "string" //If custom value processor assigned to the sub-generator
    }
  }
}

Example replacement

In the following example replacement for the HStore Mask generator:

• The Random Integer generator is assigned to the value of the pages path expression. The generator uses values between 300 and 500.

• The Character Scramble generator is assigned to the value of the title path expression. Consistency is disabled.

{
  "name": "hstore_col",
  "schema": "public",
  "table": "books",
  "links": [
    {
      "schema": "public",
      "table": "books",
      "column": "book_details",
      "metadata": {
        "generatorId": "HStoreMaskGenerator",
        "presetId": "HStoreMaskGenerator",
        "pathExpression": "pages",
        "subGeneratorMetadata": {
          "presetId": "RandomIntegerGenerator",
          "generatorId": "RandomIntegerGenerator",
          "min": 300,
          "max": 500
        }
      }
    },
    {
      "column": "book_details",
      "table": "books",
      "schema": "public",
      "metadata": {
        "generatorId": "HStoreMaskGenerator",
        "presetId": "HStoreMaskGenerator",
        "pathExpression": "title",
        "subGeneratorMetadata": {
          "isConsistent": false,
          "presetId": "TextMaskGenerator",
          "generatorId": "TextMaskGenerator"
        }
      }
    }
  ]
}