@Override
public Object read(ByteBuffer buff) {
Object[] array = new Object[arrayLength];
for (int i = 0; i < arrayLength; i++) {
DataType t = elementTypes[i];
if (buff.get() == 1) {
array[i] = t.read(buff);
}
}
return array;
}
@Override
public int getMemory(Object obj) {
Object[] array = (Object[]) obj;
int size = 0;
for (int i = 0; i < arrayLength; i++) {
DataType t = elementTypes[i];
Object o = array[i];
if (o != null) {
size += t.getMemory(o);
}
}
return size;
}
@Override
public ByteBuffer write(ByteBuffer buff, Object obj) {
Object[] array = (Object[]) obj;
for (int i = 0; i < arrayLength; i++) {
DataType t = elementTypes[i];
Object o = array[i];
if (o == null) {
buff.put((byte) 0);
} else {
buff.put((byte) 1);
buff = t.write(buff, o);
}
}
return buff;
}
@Override
public int compare(Object aObj, Object bObj) {
if (aObj == bObj) {
return 0;
}
Object[] a = (Object[]) aObj;
Object[] b = (Object[]) bObj;
for (int i = 0; i < arrayLength; i++) {
DataType t = elementTypes[i];
int comp = t.compare(a[i], b[i]);
if (comp != 0) {
return comp;
}
}
return 0;
}
/**
* Check whether the two values are equal.
*
* @param a the first value
* @param b the second value
* @return true if they are equal
*/
public boolean areValuesEqual(Object a, Object b) {
if (a == b) {
return true;
} else if (a == null || b == null) {
return false;
}
return valueType.compare(a, b) == 0;
}
/**
* Compare two keys.
*
* @param a the first key
* @param b the second key
* @return -1 if the first key is smaller, 1 if bigger, 0 if equal
*/
int compare(Object a, Object b) {
return keyType.compare(a, b);
}