com.goldencode.p2j.persist.orm

Interface PropertyReader

All Known Subinterfaces:

DataHandler

All Known Implementing Classes:

BlobType, CharacterType, ClobType, ComhandleType, DatetimeType, DatetimetzType, DateType, DecimalType, HandleType, Int64Type, IntegerType, LogicalType, NumericType, ObjectType, RawType, RecidType, RowidType

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface PropertyReader

This functional interface exposes a method for reading a (possibly multiple column) property from a SQL result set.

Method Summary

Modifier and Type	Method and Description
default int	propertySize() Get the size (number of columns in the result-set) required by this property.
int	readProperty(java.sql.ResultSet rs, int rsOffset, java.lang.Object[] data, int propIndex) Reads data from one or more positions from the ResultSet, eventually converting it to a proper type and storing the result directly to the Record's data structure.

Method Detail

readProperty

int readProperty(java.sql.ResultSet rs,
                 int rsOffset,
                 java.lang.Object[] data,
                 int propIndex)
          throws java.sql.SQLException

Reads data from one or more positions from the ResultSet, eventually converting it to a proper type and storing the result directly to the Record's data structure.

Parameters:

rs - The ResultSet to read from.

rsOffset - The index/position in current row of rs to start reading.

data - The destination. Ie. the record's data field member.

propIndex - The destination offset. Ie. the property index.

Returns:

the number of positions read for this property to be fully read.

Throws:

java.sql.SQLException - when an error is encountered while setting the value.

propertySize

default int propertySize()

Get the size (number of columns in the result-set) required by this property.

Returns:

Defaults to 1.