public class MMapRandomAccessFile extends RandomAccessFile
BIG_ENDIAN, LITTLE_ENDIAN| Constructor and Description |
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MMapRandomAccessFile(String location,
String mode)
Constructor for in-memory "files"
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| Modifier and Type | Method and Description |
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void |
flush()
Copy the contents of the buffer to the disk.
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long |
length()
Get the length of the file.
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int |
read()
Read a byte of data from the file, blocking until data is
available.
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int |
readBytes(byte[] dst,
int offset,
int length)
Read up to
len bytes into an array, at a specified
offset. |
void |
seek(long pos)
Set the position in the file for the next read or write.
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void |
unread()
Unread the last byte read.
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void |
write(int b)
Write a byte to the file.
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void |
writeBytes(byte[] dst,
int offset,
int length)
Write
len bytes from an array to the file. |
acquire, acquire, close, eject, enableDefaultGlobalFileCache, getAllFiles, getBufferSize, getDebugLeaks, getDebugNbytes, getDebugNseeks, getFilePointer, getGlobalFileCache, getLastModified, getLocation, getMaxOpenFileCount, getOpenFileCount, getOpenFiles, getRandomAccessFile, isAtEndOfFile, order, order, reacquire, read, read, readBoolean, readByte, readBytes, readChar, readDouble, readDouble, readFloat, readFloat, readFully, readFully, readInt, readInt, readIntUnbuffered, readLine, readLong, readLong, readShort, readShort, readString, readString, readStringMax, readStringMax, readToByteChannel, readUnsignedByte, readUnsignedShort, readUTF, release, searchForward, setBufferSize, setDebugAccess, setDebugLeaks, setExtendMode, setFileCache, setGlobalFileCache, setMinLength, shutdown, skipBytes, skipBytes, toString, write, write, writeBoolean, writeBoolean, writeByte, writeBytes, writeBytes, writeChar, writeChar, writeChars, writeDouble, writeDouble, writeFloat, writeFloat, writeInt, writeInt, writeLong, writeLong, writeShort, writeShort, writeUTFpublic MMapRandomAccessFile(String location, String mode) throws IOException
location - used as a namemode - the open modeIOException - on errorpublic void flush()
RandomAccessFileflush in class RandomAccessFilepublic long length()
RandomAccessFilelength in class RandomAccessFilepublic void seek(long pos)
RandomAccessFileseek in class RandomAccessFilepos - the offset (in bytes) from the start of the file.public void unread()
RandomAccessFileunread in class RandomAccessFilepublic int read()
RandomAccessFileread in class RandomAccessFilepublic int readBytes(byte[] dst,
int offset,
int length)
RandomAccessFilelen bytes into an array, at a specified
offset. This will block until at least one byte has been read.readBytes in class RandomAccessFiledst - the byte array to receive the bytes.offset - the offset in the array where copying will start.length - the number of bytes to copy.public void write(int b)
RandomAccessFilewrite in interface DataOutputwrite in class RandomAccessFileb - write this bytepublic void writeBytes(byte[] dst,
int offset,
int length)
RandomAccessFilelen bytes from an array to the file.writeBytes in class RandomAccessFiledst - the array containing the data.offset - the offset in the array to the data.length - the length of the data.