Examples with TypeLiteralExpression org.apache.flink.table.expressions.TypeLiteralExpression used on opensource projects

Example 1 with TypeLiteralExpression

use of org.apache.flink.table.expressions.TypeLiteralExpression in project flink by apache.

the class TryCastConverter method convert.

@Override
public RexNode convert(CallExpression call, CallExpressionConvertRule.ConvertContext context) {
    checkArgumentNumber(call, 2);
    final FlinkTypeFactory typeFactory = context.getTypeFactory();
    final RexNode child = context.toRexNode(call.getChildren().get(0));
    final TypeLiteralExpression targetType = (TypeLiteralExpression) call.getChildren().get(1);
    RelDataType targetRelDataType = typeFactory.createTypeWithNullability(typeFactory.createFieldTypeFromLogicalType(targetType.getOutputDataType().getLogicalType()), true);
    return context.getRelBuilder().getRexBuilder().makeCall(targetRelDataType, FlinkSqlOperatorTable.TRY_CAST, Collections.singletonList(child));
}

Example 2 with TypeLiteralExpression

use of org.apache.flink.table.expressions.TypeLiteralExpression in project flink by apache.

the class ReinterpretCastConverter method convert.

@Override
public RexNode convert(CallExpression call, CallExpressionConvertRule.ConvertContext context) {
    checkArgumentNumber(call, 3);
    RexNode child = context.toRexNode(call.getChildren().get(0));
    TypeLiteralExpression type = (TypeLiteralExpression) call.getChildren().get(1);
    RexNode checkOverflow = context.toRexNode(call.getChildren().get(2));
    return context.getRelBuilder().getRexBuilder().makeReinterpretCast(context.getTypeFactory().createFieldTypeFromLogicalType(type.getOutputDataType().getLogicalType().copy(child.getType().isNullable())), child, checkOverflow);
}

Example 3 with TypeLiteralExpression

use of org.apache.flink.table.expressions.TypeLiteralExpression in project flink by apache.

the class ThrowExceptionConverter method convert.

@Override
public RexNode convert(CallExpression call, CallExpressionConvertRule.ConvertContext context) {
    checkArgumentNumber(call, 2);
    DataType type = ((TypeLiteralExpression) call.getChildren().get(1)).getOutputDataType();
    SqlThrowExceptionFunction function = new SqlThrowExceptionFunction(context.getTypeFactory().createFieldTypeFromLogicalType(fromDataTypeToLogicalType(type)));
    return context.getRelBuilder().call(function, context.toRexNode(call.getChildren().get(0)));
}

Example 4 with TypeLiteralExpression

use of org.apache.flink.table.expressions.TypeLiteralExpression in project flink by apache.

the class CastConverter method convert.

@Override
public RexNode convert(CallExpression call, CallExpressionConvertRule.ConvertContext context) {
    checkArgumentNumber(call, 2);
    final RexNode child = context.toRexNode(call.getChildren().get(0));
    final TypeLiteralExpression targetType = (TypeLiteralExpression) call.getChildren().get(1);
    final RelDataType targetRelDataType = context.getTypeFactory().createFieldTypeFromLogicalType(targetType.getOutputDataType().getLogicalType());
    return context.getRelBuilder().getRexBuilder().makeAbstractCast(targetRelDataType, child);
}