public java.util.Map<String, AttributeValue> getExpressionAttributeValues() {
        return expressionAttributeValues;
    }
<p>
One or more values that can be substituted in an expression.
</p>
<p>
Use the <b>:</b> (colon) character in an expression to dereference an attribute value. For example, suppose that
you wanted to check whether the value of the <i>ProductStatus</i> attribute was one of the following:
</p>
<p>
<code>Available | Backordered | Discontinued</code>
</p>
<p>
You would first need to specify <code>ExpressionAttributeValues</code> as follows:
</p>
<p>
<code>{ ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }</code>
</p>
<p>
You could then use these values in an expression, such as this:
</p>
<p>
<code>ProductStatus IN (:avail, :back, :disc)</code>
</p>
<p>
For more information on expression attribute values, see <a
href="https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Expressions.SpecifyingConditions.html"
>Condition Expressions</a> in the <i>Amazon DynamoDB Developer Guide</i>.
</p>

@return One or more values that can be substituted in an expression.</p>
        <p>
        Use the <b>:</b> (colon) character in an expression to dereference an attribute value. For example,
        suppose that you wanted to check whether the value of the <i>ProductStatus</i> attribute was one of the
        following:
        </p>
        <p>
        <code>Available | Backordered | Discontinued</code>
        </p>
        <p>
        You would first need to specify <code>ExpressionAttributeValues</code> as follows:
        </p>
        <p>
        <code>{ ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }</code>
        </p>
        <p>
        You could then use these values in an expression, such as this:
        </p>
        <p>
        <code>ProductStatus IN (:avail, :back, :disc)</code>
        </p>
        <p>
        For more information on expression attribute values, see <a href=
        "https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Expressions.SpecifyingConditions.html"
        >Condition Expressions</a> in the <i>Amazon DynamoDB Developer Guide</i>.
aws-java-sdk-dynamodb/src/main/java/com/amazonaws/services/dynamodbv2/model/DeleteItemRequest.java