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SPL(Structured Process Language) A programming language specially for structured data computing.
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package com.scudata.dw;
import java.io.IOException;
import com.scudata.dm.IResource;
public interface IBlockStorage extends IResource {
static final int POS_SIZE = 5; // λ????5?ֽڵ???????ʾ
int getBlockSize(); // ȡ?????С
void loadBlock(long pos, byte []block) throws IOException; // װ??????
void saveBlock(long pos, byte []block) throws IOException; // ????????
void saveBlock(long pos, byte []block, int off, int len) throws IOException;
long applyNewBlock() throws IOException; // ??????????
StructManager getStructManager();
boolean isCompress(); // ?Ƿ?ѹ???洢
boolean isPureFormat(); // ?Ƿ??д洢
}