com.thinkaurelius.titan.core.attribute

Interface AttributeHandler<V>

All Known Subinterfaces:

AttributeSerializer<V>, OrderPreservingSerializer<V>

All Known Implementing Classes:

AbstractDecimal.AbstractDecimalSerializer, BooleanArraySerializer, BooleanSerializer, ByteArraySerializer, ByteSerializer, CharacterSerializer, CharArraySerializer, DateSerializer, Decimal.DecimalSerializer, DoubleArraySerializer, DoubleSerializer, FloatArraySerializer, FloatSerializer, Geoshape.GeoshapeSerializer, IntArraySerializer, IntegerSerializer, LongArraySerializer, LongSerializer, Precision.PrecisionSerializer, ShortArraySerializer, ShortSerializer, StringArraySerializer, StringSerializer

public interface AttributeHandler<V>

Allows custom handling of attributes inside Titan when it comes to a) data validation and b) conversion of different data types to the target type.

Author:

Matthias Broecheler (me@matthiasb.com)

Method Summary

Methods

Modifier and Type	Method and Description
V	convert(Object value) Converts the given (not-null) value to the expected datatype V.
void	verifyAttribute(V value) Verifies the given (not-null) attribute value is valid.

Method Detail

verifyAttribute

void verifyAttribute(V value)

Verifies the given (not-null) attribute value is valid. Throws an IllegalArgumentException if the value is invalid, otherwise simply returns.

Parameters:

value - to verify

convert

V convert(Object value)

Converts the given (not-null) value to the expected datatype V. The given object will NOT be of type V. Throws an IllegalArgumentException if it cannot be converted.

Parameters:

value - to convert

Returns:

converted to expected datatype