Class QueryElement


  • public class QueryElement
    extends Object
    This class defines each individual query format. It stores field name, value and relationship between them. Currently it supports Equal, Not Equal, Greater Than, Lesser Than, Greater Than Or Equal and Lesser Than Or Equal relationships.
    • Field Summary

      Fields 
      Modifier and Type Field Description
      static int CN
      Contains Relationship.
      static int EQ
      Equal Relationship.
      static int EW
      Ends With Relationship.
      static int GE
      Greater Than or Equal Relationship.
      static int GT
      Greater Than Relationship.
      static int LE
      Lesser Than or Equal Relationship.
      static int LT
      Lesser Than Relationship.
      static int NE
      Not Equal Relationship.
      static int NV
      Invalid Relationship.
      static int SW
      Starts With Relationship.
    • Constructor Detail

      • QueryElement

        public QueryElement()
        Default constructor. Allocates memory for respective items. All the fields to be set before use.
    • Method Detail

      • getFieldName

        public String getFieldName()
        Returns the field name on which query to be applied
        Returns:
        field name present in this query element.
      • getFieldValue

        public String getFieldValue()
        Returns the value of the field to be compared as stored in the query element.
        Returns:
        value the field to be queried.
      • getRelation

        public int getRelation()
        Returns relation to be applied in between field and value as stored in the query element.
        Returns:
        relation the relation between the field and value to be checked.
      • setFieldName

        public void setFieldName​(String field)
        Sets the field name for this query element.
        Parameters:
        field - field or column name of the log record
      • setFieldValue

        public void setFieldValue​(String value)
        Sets the value for the field name in this query element.
        Parameters:
        value - field or column value of the log record
      • setRelation

        public void setRelation​(int value)
                         throws IllegalArgumentException
        This method modifies/sets the relation between the field name and value in this query element.
        Parameters:
        value - relation between field and value to be matched.
        Throws:
        IllegalArgumentException - if relation is invalid.