Class Equals

java.lang.Object
org.supercsv.cellprocessor.CellProcessorAdaptor
org.supercsv.cellprocessor.constraint.Equals
All Implemented Interfaces:
BoolCellProcessor, CellProcessor, DateCellProcessor, DoubleCellProcessor, LongCellProcessor, StringCellProcessor
public class Equals extends CellProcessorAdaptor implements BoolCellProcessor, DateCellProcessor, DoubleCellProcessor, LongCellProcessor, StringCellProcessor
This constraint ensures that all input data is equal (to each other, or to a supplied constant value).
Since:
1.50

  • Field Details

    • UNKNOWN

      private static final Object UNKNOWN

    • constantValue

      private Object constantValue

    • constantSupplied

      private boolean constantSupplied

  • Constructor Details

    • Equals

      public Equals()
      Constructs a new Equals processor, which ensures all input data is equal.

    • Equals

      public Equals(Object constantValue)
      Constructs a new Equals processor, which ensures all input data is equal to the supplied constant value.
      Parameters:
      constantValue - the constant value that all input must equal

    • Equals

      public Equals(CellProcessor next)
      Constructs a new Equals processor, which ensures all input data is equal, then calls the the next processor in the chain.
      Parameters:
      next - the next processor in the chain
      Throws:
      NullPointerException - if next is null

    • Equals

      public Equals(Object constantValue, CellProcessor next)
      Constructs a new Equals processor, which ensures all input data is equal to the supplied constant value, then calls the the next processor in the chain.
      Parameters:
      constantValue - the constant value that all input must equal
      next - the next processor in the chain
      Throws:
      NullPointerException - if next is null

  • Method Details

    • execute

      public Object execute(Object value, CsvContext context)
      This method is invoked by the framework when the processor needs to process data or check constraints.
      Specified by:
      execute in interface CellProcessor
      Parameters:
      value - the value to be processed
      context - the CSV context
      Returns:
      the result of cell processor execution
      Throws:
      SuperCsvConstraintViolationException - if value isn't equal to the constant value (or previously encountered value if a constant wasn't supplied)

    • equals

      private static boolean equals(Object o1, Object o2)
      Returns true if both objects are null or equal, otherwise false.
      Parameters:
      o1 - the first object
      o2 - the second object
      Returns:
      true if both objects are null or equal, otherwise false