Package com.expediagroup.transformer

Class AbstractTransformer<T extends Transformer,P,S extends TransformerSettings<P>>

java.lang.Object

com.expediagroup.transformer.AbstractTransformer<T,P,S>

Type Parameters:

T - the Transformer implementation.

S - the TransformerSettings implementation.

P - the FieldMapping and FieldTransformer key class type.

All Implemented Interfaces:

Transformer<T>

Direct Known Subclasses:

MapTransformerImpl, TransformerImpl

public abstract class AbstractTransformer<T extends Transformer,P,S extends TransformerSettings<P>>
extends java.lang.Object
implements Transformer<T>

Abstract class containing all method implementation that will be common to any Transformer.

Field Summary

Fields

Modifier and Type	Field	Description
protected CacheManager	cacheManager	CacheManager instance CacheManager.
protected ClassUtils	classUtils	Class utils instance ClassUtils.
protected ReflectionUtils	reflectionUtils	Reflection utils instance ReflectionUtils.
protected S	settings	Contains both the field name mapping and the lambda function to be applied on fields.
protected java.lang.String	transformerFunctionRegex	A regex that returns all the transformer function cached items.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractTransformer(java.lang.String transformerFunctionCachePrefix, java.lang.String cacheName, S transformerSettings)	Default constructor.

Method Summary

Modifier and Type	Method	Description
void	removeFieldMapping(java.lang.String destFieldName)	Removes the field mapping for the given field.
void	removeFieldTransformer(java.lang.String destFieldName)	Removes the field transformer for the given field.
void	reset()	Removes all the configured settings.
void	resetFieldsMapping()	Removes all the configured fields mapping.
void	resetFieldsTransformer()	Removes all the configured fields transformer.
T	withFieldMapping(FieldMapping... fieldMapping)	Initializes the mapping between fields in the source object and the destination one.
T	withFieldTransformer(FieldTransformer... fieldTransformer)	Initializes the field transformer functions.

Methods inherited from class java.lang.Object

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

Field Detail

reflectionUtils

protected final ReflectionUtils reflectionUtils

Reflection utils instance ReflectionUtils.

classUtils

protected final ClassUtils classUtils

Class utils instance ClassUtils.

cacheManager

protected final CacheManager cacheManager

CacheManager instance CacheManager.

transformerFunctionRegex

protected final java.lang.String transformerFunctionRegex

A regex that returns all the transformer function cached items.

settings

protected S extends TransformerSettings<P> settings

Contains both the field name mapping and the lambda function to be applied on fields.

Constructor Detail

AbstractTransformer

protected AbstractTransformer(java.lang.String transformerFunctionCachePrefix,
                              java.lang.String cacheName,
                              S transformerSettings)

Default constructor.

Parameters:

transformerFunctionCachePrefix - the cache key prefix for the Transformer Functions.

cacheName - the cache key prefix for the transformer.

transformerSettings - contains the transformer configuration.

Method Detail

withFieldMapping

public final T withFieldMapping(FieldMapping... fieldMapping)

Initializes the mapping between fields in the source object and the destination one.

Specified by:

withFieldMapping in interface Transformer<T extends Transformer>

Parameters:

fieldMapping - the field mapping

Returns:

the Transformer instance

withFieldTransformer

public final T withFieldTransformer(FieldTransformer... fieldTransformer)

Initializes the field transformer functions. The transformer function returns directly the field value.

Specified by:

withFieldTransformer in interface Transformer<T extends Transformer>

Parameters:

fieldTransformer - the fields transformer function

Returns:

the Transformer instance

removeFieldMapping

public final void removeFieldMapping(java.lang.String destFieldName)

Removes the field mapping for the given field.

Specified by:

removeFieldMapping in interface Transformer<T extends Transformer>

Parameters:

destFieldName - the field name in the destination object

resetFieldsMapping

public final void resetFieldsMapping()

Removes all the configured fields mapping.

Specified by:

resetFieldsMapping in interface Transformer<T extends Transformer>

removeFieldTransformer

public final void removeFieldTransformer(java.lang.String destFieldName)

Removes the field transformer for the given field.

Specified by:

removeFieldTransformer in interface Transformer<T extends Transformer>

Parameters:

destFieldName - the field name in the destination object

resetFieldsTransformer

public final void resetFieldsTransformer()

Removes all the configured fields transformer.

Specified by:

resetFieldsTransformer in interface Transformer<T extends Transformer>

reset

public final void reset()

Removes all the configured settings.

Specified by:

reset in interface Transformer<T extends Transformer>