Examples with InvokeExpression org.datanucleus.query.expression.InvokeExpression used on opensource projects

Example 51 with InvokeExpression

use of org.datanucleus.query.expression.InvokeExpression in project datanucleus-core by datanucleus.

the class StringEndsWithMethod method evaluate.

/* (non-Javadoc)
     * @see org.datanucleus.query.evaluator.memory.InvocationEvaluator#evaluate(org.datanucleus.query.expression.InvokeExpression, org.datanucleus.query.evaluator.memory.InMemoryExpressionEvaluator)
     */
public Object evaluate(InvokeExpression expr, Object invokedValue, InMemoryExpressionEvaluator eval) {
    String method = expr.getOperation();
    if (invokedValue == null) {
        return Boolean.FALSE;
    }
    if (!(invokedValue instanceof String)) {
        throw new NucleusException(Localiser.msg("021011", method, invokedValue.getClass().getName()));
    }
    String arg = null;
    Object argObj = null;
    Object param = expr.getArguments().get(0);
    if (param instanceof PrimaryExpression) {
        PrimaryExpression primExpr = (PrimaryExpression) param;
        argObj = eval.getValueForPrimaryExpression(primExpr);
    } else if (param instanceof ParameterExpression) {
        ParameterExpression paramExpr = (ParameterExpression) param;
        argObj = QueryUtils.getValueForParameterExpression(eval.getParameterValues(), paramExpr);
    } else if (param instanceof Literal) {
        argObj = ((Literal) param).getLiteral();
    } else if (param instanceof InvokeExpression) {
        argObj = eval.getValueForInvokeExpression((InvokeExpression) param);
    } else {
        throw new NucleusException(method + "(param) where param is instanceof " + param.getClass().getName() + " not supported");
    }
    arg = QueryUtils.getStringValue(argObj);
    return ((String) invokedValue).endsWith(arg) ? Boolean.TRUE : Boolean.FALSE;
}

Example 52 with InvokeExpression

use of org.datanucleus.query.expression.InvokeExpression in project datanucleus-core by datanucleus.

the class StringEqualsMethod method evaluate.

/* (non-Javadoc)
     * @see org.datanucleus.query.evaluator.memory.InvocationEvaluator#evaluate(org.datanucleus.query.expression.InvokeExpression, org.datanucleus.query.evaluator.memory.InMemoryExpressionEvaluator)
     */
public Object evaluate(InvokeExpression expr, Object invokedValue, InMemoryExpressionEvaluator eval) {
    String method = expr.getOperation();
    if (invokedValue == null) {
        return Boolean.FALSE;
    }
    if (!(invokedValue instanceof String)) {
        throw new NucleusException(Localiser.msg("021011", method, invokedValue.getClass().getName()));
    }
    String arg1 = null;
    Object argObj = null;
    Object param = expr.getArguments().get(0);
    if (param instanceof PrimaryExpression) {
        PrimaryExpression primExpr = (PrimaryExpression) param;
        argObj = eval.getValueForPrimaryExpression(primExpr);
    } else if (param instanceof ParameterExpression) {
        ParameterExpression paramExpr = (ParameterExpression) param;
        argObj = QueryUtils.getValueForParameterExpression(eval.getParameterValues(), paramExpr);
    } else if (param instanceof Literal) {
        argObj = ((Literal) param).getLiteral();
    } else if (param instanceof InvokeExpression) {
        argObj = eval.getValueForInvokeExpression((InvokeExpression) param);
    } else {
        throw new NucleusException(method + "(param) where param is instanceof " + param.getClass().getName() + " not supported");
    }
    arg1 = QueryUtils.getStringValue(argObj);
    return ((String) invokedValue).equals(arg1) ? Boolean.TRUE : Boolean.FALSE;
}

Example 53 with InvokeExpression

use of org.datanucleus.query.expression.InvokeExpression in project datanucleus-core by datanucleus.

the class StringIndexOfMethod method evaluate.

/* (non-Javadoc)
     * @see org.datanucleus.query.evaluator.memory.InvocationEvaluator#evaluate(org.datanucleus.query.expression.InvokeExpression, org.datanucleus.query.evaluator.memory.InMemoryExpressionEvaluator)
     */
public Object evaluate(InvokeExpression expr, Object invokedValue, InMemoryExpressionEvaluator eval) {
    String method = expr.getOperation();
    if (invokedValue == null) {
        return Integer.valueOf(-1);
    }
    if (!(invokedValue instanceof String)) {
        throw new NucleusException(Localiser.msg("021011", method, invokedValue.getClass().getName()));
    }
    // Evaluate the first argument
    String arg1 = null;
    Object arg1Obj = null;
    Object param = expr.getArguments().get(0);
    if (param instanceof PrimaryExpression) {
        PrimaryExpression primExpr = (PrimaryExpression) param;
        arg1Obj = eval.getValueForPrimaryExpression(primExpr);
    } else if (param instanceof ParameterExpression) {
        ParameterExpression paramExpr = (ParameterExpression) param;
        arg1Obj = QueryUtils.getValueForParameterExpression(eval.getParameterValues(), paramExpr);
    } else if (param instanceof Literal) {
        arg1Obj = ((Literal) param).getLiteral();
    } else if (param instanceof InvokeExpression) {
        arg1Obj = eval.getValueForInvokeExpression((InvokeExpression) param);
    } else {
        throw new NucleusException(method + "(param[, num1]) where param is instanceof " + param.getClass().getName() + " not supported");
    }
    arg1 = QueryUtils.getStringValue(arg1Obj);
    Integer result = null;
    if (expr.getArguments().size() == 2) {
        // Evaluate the second argument
        int arg2 = -1;
        param = expr.getArguments().get(1);
        Object arg2Obj = null;
        if (param instanceof PrimaryExpression) {
            PrimaryExpression primExpr = (PrimaryExpression) param;
            arg2Obj = eval.getValueForPrimaryExpression(primExpr);
        } else if (param instanceof ParameterExpression) {
            ParameterExpression paramExpr = (ParameterExpression) param;
            arg2Obj = QueryUtils.getValueForParameterExpression(eval.getParameterValues(), paramExpr);
        } else if (param instanceof Literal) {
            arg2Obj = ((Literal) param).getLiteral();
        } else if (param instanceof DyadicExpression) {
            arg2Obj = ((DyadicExpression) param).evaluate(eval);
        } else {
            throw new NucleusException(method + "(param1, param2) where param2 is instanceof " + param.getClass().getName() + " not supported");
        }
        if (!(arg2Obj instanceof Number)) {
            throw new NucleusException(method + "(param1,param2) : param2 must be numeric");
        }
        arg2 = ((Number) arg2Obj).intValue();
        result = Integer.valueOf(((String) invokedValue).indexOf(arg1, arg2));
    } else {
        result = Integer.valueOf(((String) invokedValue).indexOf(arg1));
    }
    return result;
}

Example 54 with InvokeExpression

use of org.datanucleus.query.expression.InvokeExpression in project datanucleus-core by datanucleus.

the class StringMatchesMethod method evaluate.

/* (non-Javadoc)
     * @see org.datanucleus.query.evaluator.memory.InvocationEvaluator#evaluate(org.datanucleus.query.expression.InvokeExpression, org.datanucleus.query.evaluator.memory.InMemoryExpressionEvaluator)
     */
public Object evaluate(InvokeExpression expr, Object invokedValue, InMemoryExpressionEvaluator eval) {
    String method = expr.getOperation();
    if (invokedValue == null) {
        return Boolean.FALSE;
    }
    if (!(invokedValue instanceof String)) {
        throw new NucleusException(Localiser.msg("021011", method, invokedValue.getClass().getName()));
    }
    String arg = null;
    Object argObj = null;
    Object param = expr.getArguments().get(0);
    if (expr.getArguments().size() > 1) {
        NucleusLogger.QUERY.info("Please note that any escape character is currently ignored");
    // TODO Cater for optional second argument that is the escape character
    }
    if (param instanceof PrimaryExpression) {
        PrimaryExpression primExpr = (PrimaryExpression) param;
        argObj = eval.getValueForPrimaryExpression(primExpr);
    } else if (param instanceof ParameterExpression) {
        ParameterExpression paramExpr = (ParameterExpression) param;
        argObj = QueryUtils.getValueForParameterExpression(eval.getParameterValues(), paramExpr);
    } else if (param instanceof Literal) {
        argObj = ((Literal) param).getLiteral();
    } else if (param instanceof InvokeExpression) {
        argObj = eval.getValueForInvokeExpression((InvokeExpression) param);
    } else {
        throw new NucleusException(method + "(param) where param is instanceof " + param.getClass().getName() + " not supported");
    }
    arg = QueryUtils.getStringValue(argObj);
    if (eval.getQueryLanguage().equalsIgnoreCase(Query.LANGUAGE_JPQL)) {
        // Convert JPQL like expression to String.matches input
        String matchesArg = arg;
        matchesArg = StringUtils.replaceAll(matchesArg, "%", ".*");
        matchesArg = matchesArg.replace('_', '.');
        arg = matchesArg;
    }
    return ((String) invokedValue).matches(arg) ? Boolean.TRUE : Boolean.FALSE;
}

Example 55 with InvokeExpression

use of org.datanucleus.query.expression.InvokeExpression in project datanucleus-core by datanucleus.

the class TemporalHourMethod method evaluate.

/* (non-Javadoc)
     * @see org.datanucleus.query.evaluator.memory.InvocationEvaluator#evaluate(org.datanucleus.query.expression.InvokeExpression, org.datanucleus.query.evaluator.memory.InMemoryExpressionEvaluator)
     */
public Object evaluate(InvokeExpression expr, Object invokedValue, InMemoryExpressionEvaluator eval) {
    if (invokedValue == null && expr.getArguments() != null) {
        // Specified as static function, so use argument of InvokeExpression
        List<Expression> argExprs = expr.getArguments();
        if (argExprs.size() > 1) {
            throw new NucleusUserException("Incorrect number of arguments to HOUR");
        }
        Expression argExpr = argExprs.get(0);
        invokedValue = eval.getValueForExpression(argExpr);
    }
    if (invokedValue == null) {
        return Boolean.FALSE;
    }
    if (!(invokedValue instanceof Date)) {
        throw new NucleusException(Localiser.msg("021011", expr.getOperation(), invokedValue.getClass().getName()));
    }
    if (invokedValue instanceof Date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime((Date) invokedValue);
        return Integer.valueOf(cal.get(Calendar.HOUR_OF_DAY));
    } else if (invokedValue instanceof Calendar) {
        return Integer.valueOf(((Calendar) invokedValue).get(Calendar.HOUR_OF_DAY));
    } else if (invokedValue instanceof LocalTime) {
        return ((LocalTime) invokedValue).getHour();
    } else if (invokedValue instanceof LocalDateTime) {
        return ((LocalDateTime) invokedValue).getHour();
    } else {
        throw new NucleusUserException("We do not currently support HOUR() with argument of type " + invokedValue.getClass().getName());
    }
}