Package com.hotels.transformer

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

java.lang.Object
com.hotels.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 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 Details

    • 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 final S extends TransformerSettings<P> settings
      Contains both the field name mapping and the lambda function to be applied on fields.

  • Constructor Details

    • 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 Details

    • 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>