Examples with FunctionType io.crate.metadata.FunctionType used on opensource projects

Example 1 with FunctionType

use of io.crate.metadata.FunctionType in project crate by crate.

the class SplitPointsBuilder method visitFunction.

@Override
public Void visitFunction(Function function, Context context) {
    FunctionType type = function.type();
    switch(type) {
        case SCALAR:
            super.visitFunction(function, context);
            return null;
        case AGGREGATE:
            context.foundAggregateOrTableFunction = true;
            context.allocateAggregate(function);
            context.insideAggregate = true;
            super.visitFunction(function, context);
            context.insideAggregate = false;
            return null;
        case TABLE:
            if (context.insideAggregate) {
                throw new UnsupportedOperationException("Cannot use table functions inside aggregates");
            }
            context.foundAggregateOrTableFunction = true;
            if (context.tableFunctionLevel == 0) {
                context.allocateTableFunction(function);
            }
            context.tableFunctionLevel++;
            super.visitFunction(function, context);
            context.tableFunctionLevel--;
            return null;
        default:
            throw new UnsupportedOperationException("Invalid function type: " + type);
    }
}