Class NullMapping


public class NullMapping extends SingleFieldMapping
Simple mapping for a null literal. Only used when the type is not determined
  • Constructor Details

  • Method Details

    • getJavaType

      public Class getJavaType()
      Description copied from class: JavaTypeMapping
      Accessor for the java type being mapped. This is the java type that the mapping represents. Some examples :
      • if the field is of type "MyClass" then the mapping will be OIDMapping (or subclass) the javaType will be OID, and the type will be MyClass.
      • if the field is of type "int" then the mapping will be IntegerMapping, the javaType will be Integer, and the type will be int.
      The "java type" is the java-type name used in the plugin.xml mapping file
      Specified by:
      getJavaType in class JavaTypeMapping
      Returns:
      The java type
    • getObject

      public Object getObject(org.datanucleus.ExecutionContext ec, ResultSet resultSet, int[] exprIndex)
      Description copied from class: JavaTypeMapping
      Obtains a value from datastoreResults at position specified by exprIndex.
      Overrides:
      getObject in class SingleFieldMapping
      Parameters:
      ec - ExecutionContext
      resultSet - ResultSet
      exprIndex - the position of the value in the result
      Returns:
      the value
    • setObject

      public void setObject(org.datanucleus.ExecutionContext ec, PreparedStatement ps, int[] exprIndex, Object value)
      Description copied from class: JavaTypeMapping
      Sets a value into datastoreStatement at position specified by exprIndex.
      Overrides:
      setObject in class SingleFieldMapping
      Parameters:
      ec - ExecutionContext
      ps - PreparedStatement
      exprIndex - the position of the value in the statement
      value - the value