Package es.upm.etsisi.cf4j.data

Class DataBank

  • All Implemented Interfaces:
    Serializable
    public class DataBank
extends Object
implements Serializable
    DataBank is focused on storing heterogeneous data as a support to the calculations made in the recommendation process.

    Only the following types are allowed to be stored: boolean, boolean[], int, int[], double, double[], String and String[].

    See Also:
    Serialized Form

    • Constructor Detail

      • DataBank

        public DataBank()

    • Method Detail

      • deleteAll

        public void deleteAll()
        Deletes all content of this DataBank.

      • delete

        public boolean delete​(String key)
        Deletes a value associated to a single element key.
        Parameters:
        key - Key where the data is stored
        Returns:
        true if the key was found

      • contains

        public boolean contains​(String key)
        Finds if an element exist inside the DataBank
        Parameters:
        key - Key to be searched
        Returns:
        true if the key exist inside the DataBank

      • setBoolean

        public void setBoolean​(String key,
                       boolean value)
        Sets or stores a boolean inside the DataBank.
        Parameters:
        key - Key where the element will be stored.
        value - boolean value to be stored.

      • setBooleanArray

        public void setBooleanArray​(String key,
                            boolean[] value)
        Sets or stores a boolean array inside the DataBank.
        Parameters:
        key - Key where the element will be stored.
        value - boolean array to be stored.

      • setInt

        public void setInt​(String key,
                   int value)
        Sets or stores an int inside the DataBank.
        Parameters:
        key - Key where the element will be stored.
        value - int value to be stored.

      • setIntArray

        public void setIntArray​(String key,
                        int[] value)
        Sets or stores an int array inside the DataBank.
        Parameters:
        key - Key where the element will be stored.
        value - int array to be stored.

      • setDouble

        public void setDouble​(String key,
                      double value)
        Sets or stores a double inside the DataBank.
        Parameters:
        key - Key where the element will be stored.
        value - double value to be stored.

      • setDoubleArray

        public void setDoubleArray​(String key,
                           double[] value)
        Sets or stores a double array inside the DataBank.
        Parameters:
        key - Key where the element will be stored.
        value - double array to be stored.

      • setString

        public void setString​(String key,
                      String value)
        Sets or stores an String inside the DataBank.
        Parameters:
        key - Key where the element will be stored.
        value - String value to be stored.

      • setStringArray

        public void setStringArray​(String key,
                           String[] value)
        Sets or stores a double array inside the DataBank.
        Parameters:
        key - Key where the element will be stored.
        value - String array to be stored.

      • getBoolean

        public boolean getBoolean​(String key)
        Gets an stored boolean inside the DataBank.
        Parameters:
        key - Key where the element should be stored
        Returns:
        Stored boolean value or null if key does not exists

      • getBooleanArray

        public boolean[] getBooleanArray​(String key)
        Gets an stored boolean array inside the DataBank.
        Parameters:
        key - Key where the element should be stored
        Returns:
        Stored boolean array value or null if key does not exists

      • getInt

        public int getInt​(String key)
        Gets an stored int inside the DataBank.
        Parameters:
        key - Key where the element should be stored
        Returns:
        Stored int value or null if key does not exists

      • getIntArray

        public int[] getIntArray​(String key)
        Gets an stored int array inside the DataBank.
        Parameters:
        key - Key where the element should be stored
        Returns:
        Stored int array value or null if key does not exists

      • getDouble

        public double getDouble​(String key)
        Gets an stored double inside the DataBank.
        Parameters:
        key - Key where the element should be stored
        Returns:
        Stored double value or null if key does not exists

      • getDoubleArray

        public double[] getDoubleArray​(String key)
        Gets an stored double array inside the DataBank.
        Parameters:
        key - Key where the element should be stored
        Returns:
        Stored double array value or null if key does not exists

      • getString

        public String getString​(String key)
        Gets an stored String inside the DataBank.
        Parameters:
        key - Key where the element should be stored
        Returns:
        Stored String value or null if key does not exists

      • getStringArray

        public String[] getStringArray​(String key)
        Gets an stored String array inside the DataBank.
        Parameters:
        key - Key where the element should be stored
        Returns:
        Stored String array value or null if key does not exists