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Code Examples
Eran Meir edited this page Apr 1, 2019
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2 revisions
OakSerializer<Integer> integerSerializer = new OakSerializer<Integer>() {
@Override
public void serialize(Integer key, ByteBuffer targetBuffer) {
targetBuffer.putInt(targetBuffer.position(), key);
}
@Override
public Integer deserialize(ByteBuffer serializedKey) {
return serializedKey.getInt(serializedKey.position());
}
@Override
public int calculateSize(Integer object) {
return Integer.BYTES;
}
};
OakComparator<Integer> comparator = new OakComparator<Integer>() {
@Override
public int compareKeys(Integer int1, Integer int2) {
return Integer.compare(int1, int2);
}
@Override
public int compareSerializedKeys(ByteBuffer buff1, ByteBuffer buff2) {
int int1 = buff1.getInt(buff1.position());
int int2 = buff2.getInt(buff2.position());
return Integer.compare(int1, int2);
}
@Override
public int compareSerializedKeyAndKey(ByteBuffer buff1, Integer int2) {
int int1 = buff1.getInt(buff1.position());
return Integer.compare(int1, int2);
}
};
OakMapBuilder<Integer, Integer> builder = new OakMapBuilder<Integer, Integer>()
.setKeySerializer(integerSerializer)
.setValueSerializer(integerSerializer)
.setMinKey(Integer.MIN_VALUE)
.setComparator(comparator)
.setMemoryCapacity(1048576); // 1MB in bytes
OakMap<Integer,Integer> oak = builder.build();