com.holonplatform.datastore.jpa.jpql

Interface JPQLValueDeserializer

public interface JPQLValueDeserializer

JPA values deserializaer.

Since:

5.1.0

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	JPQLValueDeserializer.ValueProcessor Processor to process a value before actual deserialization.

Method Summary

Modifier and Type	Method and Description
void	addValueProcessor(JPQLValueDeserializer.ValueProcessor valueProcessor) Add a deserialized value processor.
<T> T	deserialize(JpaExecutionContext context, com.holonplatform.core.TypedExpression<T> expression, Object value) Deserialize the value associated to given expression, to obtain a value type which matches the expression type.
static JPQLValueDeserializer	getDefault() Create the default JPQLValueDeserializer.

Method Detail

deserialize

<T> T deserialize(JpaExecutionContext context,
                  com.holonplatform.core.TypedExpression<T> expression,
                  Object value)
           throws com.holonplatform.core.exceptions.DataAccessException

Deserialize the value associated to given expression, to obtain a value type which matches the expression type.

Type Parameters:

T - Expression type

Parameters:

context - Execution context

expression - Expression for which the deserialization is invoked

value - Value to deserialize

Returns:

Deserialized value

Throws:

com.holonplatform.core.exceptions.DataAccessException - If value cannot be deserialized using given expression type

addValueProcessor

void addValueProcessor(JPQLValueDeserializer.ValueProcessor valueProcessor)

Add a deserialized value processor.

Parameters:

valueProcessor - the value processor to add (not null)

getDefault

static JPQLValueDeserializer getDefault()

Create the default JPQLValueDeserializer.

Returns:

the default JPQLValueDeserializer