# DocumentAttributeConditionProperty

The condition used for the target document attribute or metadata field when ingesting documents into Amazon Kendra.

You use this with [DocumentAttributeTarget to apply the condition](https://docs.aws.amazon.com/kendra/latest/dg/API_DocumentAttributeTarget.html) .

For example, you can create the 'Department' target field and have it prefill department names associated with the documents based on information in the 'Source_URI' field. Set the condition that if the 'Source_URI' field contains 'financial' in its URI value, then prefill the target field 'Department' with the target value 'Finance' for the document.

Amazon Kendra cannot create a target field if it has not already been created as an index field. After you create your index field, you can create a document metadata field using `DocumentAttributeTarget` . Amazon Kendra then will map your newly created metadata field to your index field.

- Source: Generated code
- Type last changed: v2.93.0 · 23 Aug 2023

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_kendra as kendra } from 'aws-cdk-lib';
const documentAttributeConditionProperty: kendra.CfnDataSource.DocumentAttributeConditionProperty = {
  conditionDocumentAttributeKey: 'conditionDocumentAttributeKey',
  operator: 'operator',

  // the properties below are optional
  conditionOnValue: {
    dateValue: 'dateValue',
    longValue: 123,
    stringListValue: ['stringListValue'],
    stringValue: 'stringValue',
  },
};
```

## Properties

- `conditionDocumentAttributeKey`: string (required) — The identifier of the document attribute used for the condition.

  For example, 'Source_URI' could be an identifier for the attribute or metadata field that contains source URIs associated with the documents.

  Amazon Kendra currently does not support `_document_body` as an attribute key used for the condition.

- `conditionOnValue`: [IResolvable](/cdk/api/v2/docs/aws-cdk-lib.IResolvable.html) | [CfnDataSource.DocumentAttributeValueProperty](/cdk/api/v2/docs/aws-cdk-lib.aws_kendra.CfnDataSource.DocumentAttributeValueProperty.html) — The value used by the operator.

  For example, you can specify the value 'financial' for strings in the 'Source_URI' field that partially match or contain this value.

- `operator`: string (required) — The condition operator.

  For example, you can use 'Contains' to partially match a string.