Examples with SQLBoolean org.apache.derby.iapi.types.SQLBoolean used on opensource projects

Example 11 with SQLBoolean

use of org.apache.derby.iapi.types.SQLBoolean in project derby by apache.

the class UpdateResultSet method evaluateCheckConstraints.

/**
 * Run check constraints against the current row. Raise an error if
 * a check constraint is violated, unless all the offending checks are
 * deferred, in which case a false value will be returned. A NULL value
 * will be interpreted as success (not violation).
 *
 * @exception StandardException thrown on error
 */
private boolean evaluateCheckConstraints() throws StandardException {
    boolean result = true;
    if (checkGM != null) {
        // Evaluate the check constraints. If all check constraint modes are
        // immediate, a check error will throw rather than return a false
        // value.
        SQLBoolean allOk = (SQLBoolean) checkGM.invoke(activation);
        result = allOk.isNull() || allOk.getBoolean();
    }
    return result;
}