/** {@inheritDoc} */
@Override
public void parse(String jpqlFragment) {
StringBuilder sb = new StringBuilder();
sb.append(TRIM);
sb.append(LEFT_PARENTHESIS);
sb.append(jpqlFragment);
sb.append(RIGHT_PARENTHESIS);
JPQLExpression jpqlExpression =
new JPQLExpression(sb, getGrammar(), FunctionsReturningStringsBNF.ID, true);
TrimExpression trimExpression = (TrimExpression) jpqlExpression.getQueryStatement();
setSpecification(trimExpression.getSpecification());
parseTrimCharacter(trimExpression.getTrimCharacter().toParsedText());
super.parse(trimExpression.getExpression().toParsedText());
// The trim character is actually the string primary
if (!hasStateObject() && hasTrimCharacter()) {
setStateObject(new StringLiteralStateObject(this, trimCharacter.toString()));
trimCharacter = null;
}
}
/** {@inheritDoc} */
@Override
protected void toTextEncapsulatedExpression(Appendable writer) throws IOException {
// Specification
if (specification != Specification.DEFAULT) {
writer.append(specification.name());
writer.append(SPACE);
}
// Trim character
if (hasTrimCharacter()) {
trimCharacter.toString(writer);
writer.append(SPACE);
}
// FROM
if ((specification != Specification.DEFAULT) || hasTrimCharacter()) {
writer.append(FROM);
writer.append(SPACE);
}
// String primary
super.toTextEncapsulatedExpression(writer);
}
/** {@inheritDoc} */
@Override
public void setStateObject(StateObject stateObject) {
super.setStateObject(stateObject);
}
/**
* Keeps a reference of the {@link TrimExpression parsed object} object, which should only be done
* when this object is instantiated during the conversion of a parsed JPQL query into {@link
* StateObject StateObjects}.
*
* @param expression The {@link TrimExpression parsed object} representing a <code><b>TRIM</b>
* </code> expression
*/
public void setExpression(TrimExpression expression) {
super.setExpression(expression);
}