SuperBlock.java

public class SuperBlock {
    protected int number;  // as in S0, S1, etc.
    protected int maxNumberOfDataBlocks; 
    // number of elements per Block
    protected int maxNumberOfElementsPerBlock; 
    // current number of Blocks in this SuperBlock
    protected int currentNumberOfDataBlocks;
    
    // Workhorse constructor. Initialize variables.
    public SuperBlock(int number, int maxNumberOfDataBlocks,
                      int maxNumberOfElementsPerBlock, int currentNumberOfDataBlocks) {
        this.number = number;
        this.maxNumberOfDataBlocks = maxNumberOfDataBlocks;
        this.maxNumberOfElementsPerBlock = maxNumberOfElementsPerBlock;
        this.currentNumberOfDataBlocks = currentNumberOfDataBlocks;
    }
    
    // Returns number.
    public int getNumber() {
        return number;
    }
    
    // Returns maxNumberOfDataBlocks
    public int getMaxNumberOfDataBlocks() {
        return maxNumberOfDataBlocks;
    }
    
    // Returns maxNumberOfElementsPerBlock
    public int getMaxNumberOfElementsPerBlock() {
        return maxNumberOfElementsPerBlock;
    }
    
    // Returns currentNumberOfDataBlocks 
    public int getCurrentNumberOfDataBlocks() {
        return currentNumberOfDataBlocks;
    }
    
    // Increments CurrentNumberOfDataBlocks
    public void incrementCurrentNumberOfDataBlocks() {
        ++currentNumberOfDataBlocks;
    }
    
    // Decrements currentNumberOfDataBlocks
    public void decrementCurrentNumberOfDataBlocks() {
        --currentNumberOfDataBlocks;
    }
    
    // Create a pretty representation of the SuperBlock for debugging.
    // Example:
    // - maxNumberOfDataBlocks:2 
    // - maxNumberOfElementsPerBlock:2
    // - currentNumberOfDataBlocks:1
    protected String toStringForDebugging() {
        return ("- maxNumberOfDataBlocks: " + maxNumberOfDataBlocks + "\n- maxNumberOfElementsPerBlock: " 
                    + maxNumberOfElementsPerBlock + "\n- currentNumberOfDataBlocks: " + currentNumberOfDataBlocks + "\n");
    }
}