Class FieldConversionMapping

java.lang.Object
com.univocity.parsers.common.fields.FieldConversionMapping
All Implemented Interfaces:
Cloneable

public class FieldConversionMapping extends Object implements Cloneable
A class for mapping field selections to sequences of Conversion objects
  • Field Details

  • Constructor Details

    • FieldConversionMapping

      public FieldConversionMapping()
  • Method Details

    • prepareExecution

      public void prepareExecution(boolean writing, String[] values)
      Prepares the conversions registered in this object to be executed against a given sequence of fields
      Parameters:
      writing - flag indicating whether a writing process is being initialized.
      values - The field sequence that identifies how records will be organized.

      This is generally the sequence of headers in a record, but it might be just the first parsed row from a given input (as field selection by index is allowed).

    • applyConversionsOnAllFields

      public void applyConversionsOnAllFields(Conversion<String,?>... conversions)
      Applies a sequence of conversions on all fields.
      Parameters:
      conversions - the sequence of conversions to be applied
    • applyConversionsOnFieldIndexes

      public FieldSet<Integer> applyConversionsOnFieldIndexes(Conversion<String,?>... conversions)
      Applies a sequence of conversions on a selection of field indexes
      Parameters:
      conversions - the sequence of conversions to be applied
      Returns:
      a selector of column indexes.
    • applyConversionsOnFieldNames

      public FieldSet<String> applyConversionsOnFieldNames(Conversion<String,?>... conversions)
      Applies a sequence of conversions on a selection of field name
      Parameters:
      conversions - the sequence of conversions to be applied
      Returns:
      a selector of column names.
    • applyConversionsOnFieldEnums

      public FieldSet<Enum> applyConversionsOnFieldEnums(Conversion<String,?>... conversions)
      Applies a sequence of conversions on a selection of enumerations that represent fields
      Parameters:
      conversions - the sequence of conversions to be applied
      Returns:
      a selector of enumerations.
    • executeValidations

      public void executeValidations(int index, Object value)
      Applies any validations associated with a field at a given index in a record
      Parameters:
      index - The index of parsed value in a record
      value - The value of the record at the given index
    • reverseConversions

      public Object reverseConversions(boolean executeInReverseOrder, int index, Object value, boolean[] convertedFlags)
      Applies a sequence of conversions associated with an Object value at a given index in a record.
      Parameters:
      executeInReverseOrder - flag to indicate whether or not the conversion sequence must be executed in reverse order
      index - The index of parsed value in a record
      value - The value in a record
      convertedFlags - an array of flags that indicate whether a conversion occurred. Used to determine whether or not a default conversion by type (specified with ConversionProcessor.convertType(Class, Conversion[])) should be applied.
      Returns:
      the Object resulting from a sequence of conversions against the original value.
    • applyConversions

      public Object applyConversions(int index, String stringValue, boolean[] convertedFlags)
      Applies a sequence of conversions associated with a String value parsed from a given index.
      Parameters:
      index - The index of parsed value in a record
      stringValue - The parsed value in a record
      convertedFlags - an array of flags that indicate whether a conversion occurred. Used to determine whether or not a default conversion by type (specified with ConversionProcessor.convertType(Class, Conversion[])) should be applied.
      Returns:
      the Object produced by a sequence of conversions against the original String value.
    • getConversions

      public Conversion[] getConversions(int index, Class<?> expectedType)
      Returns the sequence of conversions to be applied at a given column index
      Parameters:
      index - the index of the column where the conversions should be executed
      expectedType - the type resulting from the conversion sequence.
      Returns:
      the sequence of conversions to be applied at a given column index
    • clone

      public FieldConversionMapping clone()
      Overrides:
      clone in class Object