public void setDocumentMetadataConfigurations(java.util.Collection<DocumentMetadataConfiguration> documentMetadataConfigurations) {
        if (documentMetadataConfigurations == null) {
            this.documentMetadataConfigurations = null;
            return;
        }

        this.documentMetadataConfigurations = new java.util.ArrayList<DocumentMetadataConfiguration>(documentMetadataConfigurations);
    }
<p>
Configuration information for document metadata or fields. Document metadata are fields or attributes associated
with your documents. For example, the company department name associated with each document.
</p>

@param documentMetadataConfigurations
       Configuration information for document metadata or fields. Document metadata are fields or attributes
       associated with your documents. For example, the company department name associated with each document.
aws-java-sdk-kendra/src/main/java/com/amazonaws/services/kendra/model/DescribeIndexResult.java