@Override
public int _handleToken(ParseContext ctx) throws InvalidQueryException {
Token[] tokens = ctx.getTokens();
int idx = ctx.getCurrentTokensIndex();
Token token = tokens[idx];
RelationalOperator relationalOp = RelationalOperatorFactory.createOperator(token.getValue());
ctx.addExpression(new RelationalExpression(relationalOp));
ctx.setCurrentTokensIndex(++idx);
TokenHandler propertyHandler = new PropertyOperandTokenHandler();
propertyHandler.handleToken(ctx);
// handle right operand if applicable to operator
idx = ctx.getCurrentTokensIndex();
if (ctx.getCurrentTokensIndex() < tokens.length
&& tokens[idx].getType().equals(Token.TYPE.VALUE_OPERAND)) {
TokenHandler valueHandler = new ValueOperandTokenHandler();
valueHandler.handleToken(ctx);
}
// skip closing bracket
idx = ctx.getCurrentTokensIndex();
if (idx >= tokens.length || tokens[idx].getType() != Token.TYPE.BRACKET_CLOSE) {
throw new InvalidQueryException("Missing closing bracket for in expression.");
}
return 1;
}
@Override
public int _handleToken(ParseContext ctx) throws InvalidQueryException {
Token token = ctx.getTokens()[ctx.getCurrentTokensIndex()];
RelationalOperator relationalOp = RelationalOperatorFactory.createOperator(token.getValue());
// todo: use factory to create expression
ctx.addExpression(new RelationalExpression(relationalOp));
return 1;
}
@Override
public int _handleToken(ParseContext ctx) throws InvalidQueryException {
Token token = ctx.getTokens()[ctx.getCurrentTokensIndex()];
LogicalOperator logicalOp =
LogicalOperatorFactory.createOperator(token.getValue(), ctx.getPrecedenceLevel());
ctx.updateMaxPrecedence(logicalOp.getPrecedence());
ctx.addExpression(LogicalExpressionFactory.createLogicalExpression(logicalOp));
return 1;
}