?? concatenationoperationimpl.java
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package net.spy.memcached.protocol.binary;import net.spy.memcached.ops.ConcatenationOperation;import net.spy.memcached.ops.ConcatenationType;import net.spy.memcached.ops.OperationCallback;import net.spy.memcached.ops.OperationStatus;class ConcatenationOperationImpl extends OperationImpl implements ConcatenationOperation { private static final int APPEND=0x0e; private static final int PREPEND=0x0f; private final String key; private final long cas; private final byte[] data; private static int cmdMap(ConcatenationType t) { int rv=-1; switch(t) { case append: rv=APPEND; break; case prepend: rv=PREPEND; break; } // Check fall-through. assert rv != -1 : "Unhandled store type: " + t; return rv; } public ConcatenationOperationImpl(ConcatenationType t, String k, byte[] d, long c, OperationCallback cb) { super(cmdMap(t), generateOpaque(), cb); key=k; data=d; cas=c; } @Override public void initialize() { prepareBuffer(key, cas, data); } @Override protected OperationStatus getStatusForErrorCode(int errCode, byte[] errPl) { OperationStatus rv=null; switch(errCode) { case ERR_EXISTS: rv=EXISTS_STATUS; break; case ERR_NOT_FOUND: rv=NOT_FOUND_STATUS; break; case ERR_NOT_STORED: rv=NOT_FOUND_STATUS; break; } return rv; }}?? 快捷鍵說明
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