public void setExpression(String expression) {
        this.expression = expression;
    }
<p>
A regular expression pattern. If present, only those tables whose names match the pattern are returned.
</p>

@param expression
       A regular expression pattern. If present, only those tables whose names match the pattern are returned.
aws-java-sdk-glue/src/main/java/com/amazonaws/services/glue/model/GetTablesRequest.java