/** {@inheritDoc} */
@Override
protected void parse(WordParser wordParser, boolean tolerant) {
// Parse state field
if (tolerant) {
stateFieldExpression = parse(wordParser, UpdateItemStateFieldPathExpressionBNF.ID, tolerant);
} else {
stateFieldExpression = new StateFieldPathExpression(this, wordParser.word());
stateFieldExpression.parse(wordParser, tolerant);
}
hasSpaceAfterStateFieldPathExpression = wordParser.skipLeadingWhitespace() > 0;
// Parse '='
hasEqualSign = wordParser.startsWith(EQUAL);
if (hasEqualSign) {
wordParser.moveForward(1);
hasSpaceAfterEqualSign = wordParser.skipLeadingWhitespace() > 0;
if (stateFieldExpression != null) {
hasSpaceAfterStateFieldPathExpression = true;
}
}
// Parse new value
newValue = parse(wordParser, NewValueBNF.ID, tolerant);
if (!hasSpaceAfterEqualSign && (newValue != null)) {
hasSpaceAfterEqualSign = true;
}
}
/** {@inheritDoc} */
@Override
protected void parse(WordParser wordParser, boolean tolerant) {
// Parse 'NOT'
if (wordParser.startsWithIgnoreCase('N')) {
notIdentifier = wordParser.moveForward(NOT);
wordParser.skipLeadingWhitespace();
}
// Parse 'BETWEEN'
betweenIdentifier = wordParser.moveForward(BETWEEN);
hasSpaceAfterBetween = (wordParser.skipLeadingWhitespace() > 0);
// Parse lower bound expression
lowerBoundExpression = parse(wordParser, InternalBetweenExpressionBNF.ID, tolerant);
if (lowerBoundExpression != null) {
hasSpaceAfterLowerBound = (wordParser.skipLeadingWhitespace() > 0);
}
// Parse 'AND'
if (!tolerant || wordParser.startsWithIdentifier(AND)) {
andIdentifier = wordParser.moveForward(AND);
hasSpaceAfterAnd = (wordParser.skipLeadingWhitespace() > 0);
}
// Parse upper bound expression
upperBoundExpression = parse(wordParser, InternalBetweenExpressionBNF.ID, tolerant);
}
/**
* Determines whether the JPQL fragment is an expression of the form <code><IDENTIFIER>(
* </code>.
*
* @param wordParser The text to parse based on the current position of the cursor
* @param identifier The identifier to verify if it's for an expression or for possibly for a
* variable name
* @return <code>true</code> if the identifier is followed by '('; <code>false</code> otherwise
*/
public static boolean isFunctionExpression(WordParser wordParser, String identifier) {
// Skip the identifier
int count = identifier.length();
wordParser.moveForward(identifier);
// Check to see if ( is following the identifier
int whitespace = wordParser.skipLeadingWhitespace();
boolean function = wordParser.startsWith('(');
// Revert the changes
wordParser.moveBackward(count + whitespace);
return function;
}
/** {@inheritDoc} */
@Override
protected boolean isParsingComplete(WordParser wordParser, String word, Expression expression) {
return wordParser.character() == RIGHT_PARENTHESIS
|| word.equalsIgnoreCase(AND)
|| word.equalsIgnoreCase(THEN)
|| word.equalsIgnoreCase(ELSE)
|| super.isParsingComplete(wordParser, word, expression);
}
/** {@inheritDoc} */
@Override
protected void parse(WordParser wordParser, boolean tolerant) {
wordParser.moveForward(getText());
}