Package nz.co.gregs.dbvolution.datatypes

Class QueryableDatatypeSyncer

java.lang.Object

nz.co.gregs.dbvolution.datatypes.QueryableDatatypeSyncer

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

SimpleValueQueryableDatatypeSyncer

public class QueryableDatatypeSyncer
extends java.lang.Object
implements java.io.Serializable

Allows synchronizations to be done between two QueryableDatatypes, based on a Type Adaptor.

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Author:

Malcolm Lett

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	QueryableDatatypeSyncer.DBSafeInternalQDTAdaptor	One-shot cycle-aware recursive QDT adaptor.

Constructor Summary

Constructors

Constructor	Description
QueryableDatatypeSyncer(java.lang.String propertyName, java.lang.Class<? extends QueryableDatatype<?>> internalQdtType, java.lang.Class<?> internalQdtLiteralType, java.lang.Class<?> externalSimpleType, DBTypeAdaptor<java.lang.Object,java.lang.Object> typeAdaptor)

Method Summary

Modifier and Type	Method	Description
QueryableDatatype<?>	getInternalQueryableDatatype()	supplies the QDT used internally, that is the QDT the represents the database's view of the data.
protected SafeOneWaySimpleTypeAdaptor	getToExternalSimpleTypeAdaptor()	Support DBvolution at Patreon
protected SafeOneWaySimpleTypeAdaptor	getToInternalSimpleTypeAdaptor()	Support DBvolution at Patreon
QueryableDatatype<?>	setExternalFromInternalQDT(QueryableDatatype<?> externalQdt)	Sets the provided external QDT from the internal QDT and returns the updated external QDT.
QueryableDatatype<?>	setInternalQDTFromExternalQDT(QueryableDatatype<?> externalQdt)	Sets the cached internal QDT after adapting the value from the provided QDT.
void	setInternalQueryableDatatype(QueryableDatatype<?> internalQdt)	Replaces the internal QDT with the one provided.
protected static void	setQDTValueUsingDangerousReflection(QueryableDatatype<?> internalQDT, java.lang.Object internalValue)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

QueryableDatatypeSyncer

public QueryableDatatypeSyncer(java.lang.String propertyName,
                               java.lang.Class<? extends QueryableDatatype<?>> internalQdtType,
                               java.lang.Class<?> internalQdtLiteralType,
                               java.lang.Class<?> externalSimpleType,
                               DBTypeAdaptor<java.lang.Object,java.lang.Object> typeAdaptor)

Parameters:

propertyName - used in error messages

internalQdtType - internalQdtType

internalQdtLiteralType - internalQdtLiteralType

externalSimpleType - externalSimpleType

typeAdaptor - typeAdaptor typeAdaptor

Method Detail

getInternalQueryableDatatype

public QueryableDatatype<?> getInternalQueryableDatatype()

supplies the QDT used internally, that is the QDT the represents the database's view of the data.

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Returns:

the internal QDT.

setInternalQueryableDatatype

public void setInternalQueryableDatatype(QueryableDatatype<?> internalQdt)

Replaces the internal QDT with the one provided. Validates that the provided QDT is of the correct type.

Parameters:

internalQdt - internalQdt

setInternalQDTFromExternalQDT

public QueryableDatatype<?> setInternalQDTFromExternalQDT(QueryableDatatype<?> externalQdt)

Sets the cached internal QDT after adapting the value from the provided QDT.

Parameters:

externalQdt - may be null

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Returns:

the updated internal QDT

setExternalFromInternalQDT

public QueryableDatatype<?> setExternalFromInternalQDT(QueryableDatatype<?> externalQdt)

Sets the provided external QDT from the internal QDT and returns the updated external QDT.

Parameters:

externalQdt - externalQdt

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Returns:

the updated external QDT or null if the internal QDT is null

getToExternalSimpleTypeAdaptor

protected SafeOneWaySimpleTypeAdaptor getToExternalSimpleTypeAdaptor()

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Returns:

the toExternalSimpleTypeAdaptor

getToInternalSimpleTypeAdaptor

protected SafeOneWaySimpleTypeAdaptor getToInternalSimpleTypeAdaptor()

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Returns:

the toInternalSimpleTypeAdaptor

setQDTValueUsingDangerousReflection

protected static final void setQDTValueUsingDangerousReflection(QueryableDatatype<?> internalQDT,
                                                                java.lang.Object internalValue)

Parameters:

internalQDT - the internal QDT

internalValue - the internal value