public void setAddColumns(java.util.Collection<ColumnDefinition> addColumns) {
        if (addColumns == null) {
            this.addColumns = null;
            return;
        }

        this.addColumns = new java.util.ArrayList<ColumnDefinition>(addColumns);
    }
<p>
For each column to be added to the specified table:
</p>
<ul>
<li>
<p>
<code>name</code> - The name of the column.
</p>
</li>
<li>
<p>
<code>type</code> - An Amazon Keyspaces data type. For more information, see <a
href="https://docs.aws.amazon.com/keyspaces/latest/devguide/cql.elements.html#cql.data-types">Data types</a> in
the <i>Amazon Keyspaces Developer Guide</i>.
</p>
</li>
</ul>

@param addColumns
       For each column to be added to the specified table:</p>
       <ul>
       <li>
       <p>
       <code>name</code> - The name of the column.
       </p>
       </li>
       <li>
       <p>
       <code>type</code> - An Amazon Keyspaces data type. For more information, see <a
       href="https://docs.aws.amazon.com/keyspaces/latest/devguide/cql.elements.html#cql.data-types">Data
       types</a> in the <i>Amazon Keyspaces Developer Guide</i>.
       </p>
       </li>
aws-java-sdk-keyspaces/src/main/java/com/amazonaws/services/keyspaces/model/UpdateTableRequest.java