Class HashMapper

    • Constructor Summary

      Constructors 
      Constructor Description
      HashMapper​(java.util.Map<java.lang.Object,​java.lang.Object> mapping)
      Constructs a new HashMapper processor, which maps from one object to another, by looking up a Map with the input as the key, and returning its corresponding value.
      HashMapper​(java.util.Map<java.lang.Object,​java.lang.Object> mapping, java.lang.Object defaultValue)
      Constructs a new HashMapper processor, which maps from one object to another, by looking up a Map with the input as the key, and returning its corresponding value.
      HashMapper​(java.util.Map<java.lang.Object,​java.lang.Object> mapping, java.lang.Object defaultValue, CellProcessor next)
      Constructs a new HashMapper processor, which maps from one object to another, by looking up a Map with the input as the key, and returning its corresponding value.
      HashMapper​(java.util.Map<java.lang.Object,​java.lang.Object> mapping, CellProcessor next)
      Constructs a new HashMapper processor, which maps from one object to another, by looking up a Map with the input as the key, and returning its corresponding value.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.Object execute​(java.lang.Object value, CsvContext context)
      This method is invoked by the framework when the processor needs to process data or check constraints.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
    • Constructor Detail

      • HashMapper

        public HashMapper​(java.util.Map<java.lang.Object,​java.lang.Object> mapping)
        Constructs a new HashMapper processor, which maps from one object to another, by looking up a Map with the input as the key, and returning its corresponding value. If no mapping is found, then null is returned.
        Parameters:
        mapping - the Map
        Throws:
        java.lang.NullPointerException - if mapping is null
        java.lang.IllegalArgumentException - if mapping is empty
      • HashMapper

        public HashMapper​(java.util.Map<java.lang.Object,​java.lang.Object> mapping,
                          java.lang.Object defaultValue)
        Constructs a new HashMapper processor, which maps from one object to another, by looking up a Map with the input as the key, and returning its corresponding value. If no mapping is found, then the supplied default value is returned.
        Parameters:
        mapping - the Map
        defaultValue - the value to return if no mapping is found
        Throws:
        java.lang.NullPointerException - if mapping is null
        java.lang.IllegalArgumentException - if mapping is empty
      • HashMapper

        public HashMapper​(java.util.Map<java.lang.Object,​java.lang.Object> mapping,
                          CellProcessor next)
        Constructs a new HashMapper processor, which maps from one object to another, by looking up a Map with the input as the key, and returning its corresponding value. If no mapping is found, then null is returned. Regardless of whether a mapping is found, the next processor in the chain will be called.
        Parameters:
        mapping - the Map
        next - the next processor in the chain
        Throws:
        java.lang.NullPointerException - if mapping or next is null
        java.lang.IllegalArgumentException - if mapping is empty
      • HashMapper

        public HashMapper​(java.util.Map<java.lang.Object,​java.lang.Object> mapping,
                          java.lang.Object defaultValue,
                          CellProcessor next)
        Constructs a new HashMapper processor, which maps from one object to another, by looking up a Map with the input as the key, and returning its corresponding value. If no mapping is found, then the supplied default value is returned. Regardless of whether a mapping is found, the next processor in the chain will be called.
        Parameters:
        mapping - the Map
        defaultValue - the value to return if no mapping is found
        next - the next processor in the chain
        Throws:
        java.lang.NullPointerException - if mapping or next is null
        java.lang.IllegalArgumentException - if mapping is empty
    • Method Detail

      • execute

        public java.lang.Object execute​(java.lang.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:
        SuperCsvCellProcessorException - if value is null