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Java Source Code / Java Documentation » Database DBMS » db derby 10.2 » org.apache.derbyTesting.functionTests.util.corruptio   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.derbyTesting.functionTests.util.corruptio.CorruptRandomAccessFile CorruptRandomAccessFile public class CorruptRandomAccessFile implements StorageRandomAccessFile(Code) This class provides a proxy implementation of the StorageRandomAccess File interface. It is used by CorruptDiskStorageFactory to instrument the database engine i/o for testing puproses. How the i/o operation are corrupted is based on the values set in the instance of the Singleton CorruptibleIo class by the tests. Methods in this class functon similar to java.io.RandomAccessFile except when modified to perform the corruptios. author:    Suresh Thalamati version:    1.0 See Also:   java.io.RandomAccessFile See Also:   StorageRandomAccessFile Constructor Summary   CorruptRandomAccessFile(StorageRandomAccessFile raf, File realFile)      Method Summary public  void close()      Closes this file. public  long getFilePointer()      Get the current offset in this file. public  long length()      Gets the length of this file. public  boolean readBoolean()      Reads a byte and returns true if the byte is not zero otherwise false. public  byte readByte()      returns one input byte from the stream. public  char readChar()      returns a char value from the stream. public  double readDouble()      returns a double from the stream. public  float readFloat()      returns a float from the stream. public  void readFully(byte b)      Reads some bytes from an input stream into the byte array. public  void readFully(byte b, int off, int len)      Reads the specified number of bytes from an input stream. public  int readInt()      returns an Int from the stream. public  String readLine()      returns the next line of text from the input stream. public  long readLong()      returns a long from the stream. public  short readShort()      returns a short value from the stream. public  String readUTF()      returns a string that has been encoded using in the UTF-8 format. public  int readUnsignedByte()      Reads one input byte in the unsigned form. public  int readUnsignedShort()      returns unsigned short. public  void seek(long newFilePointer)      Set the file pointer. public  void setLength(long newLength)      Sets the length of this file, either extending or truncating it. public  int skipBytes(int nBytes)      public  void sync(boolean metaData)      Force any changes out to the persistent store. public  void write(int b)      Writes an int to the output stream . public  void write(byte b)      Writes all the bytes in array to the stream. public  void write(byte b, int off, int len)      Writes specified number bytes from array to the stream. public  void writeBoolean(boolean value)      Writes a boolean value to this output stream. public  void writeByte(int value)      Writes to the eight low-order bits of ant int. public  void writeBytes(String str)      Writes a string as bytes to the stream. public  void writeChar(int value)      Writes a char value to the output stream. public  void writeChars(String str)      Writes the string to the stream. public  void writeDouble(double value)      Writes a a double value to the stream. public  void writeFloat(float value)      Writes a float value to the output stream. public  void writeInt(int value)      Writes an int value to the output stream. public  void writeLong(long value)      Writes a long value to the output stream. public  void writeShort(int value)      public  void writeUTF(String str)      Writes the string in the utf format. Constructor Detail CorruptRandomAccessFile CorruptRandomAccessFile(StorageRandomAccessFile raf, File realFile)(Code) Construct a CorruptRandomAccessFile Parameters:   raf - The real random access file to which calls are delegated frothis proxy class. Method Detail close public void close() throws IOException(Code) Closes this file. getFilePointer public long getFilePointer() throws IOException(Code) Get the current offset in this file. length public long length() throws IOException(Code) Gets the length of this file. readBoolean public boolean readBoolean() throws IOException(Code) Reads a byte and returns true if the byte is not zero otherwise false. readByte public byte readByte() throws IOException(Code) returns one input byte from the stream. readChar public char readChar() throws IOException(Code) returns a char value from the stream. readDouble public double readDouble() throws IOException(Code) returns a double from the stream. readFloat public float readFloat() throws IOException(Code) returns a float from the stream. readFully public void readFully(byte b) throws IOException(Code) Reads some bytes from an input stream into the byte array. readFully public void readFully(byte b, int off, int len) throws IOException(Code) Reads the specified number of bytes from an input stream. readInt public int readInt() throws IOException(Code) returns an Int from the stream. readLine public String readLine() throws IOException(Code) returns the next line of text from the input stream. readLong public long readLong() throws IOException(Code) returns a long from the stream. readShort public short readShort() throws IOException(Code) returns a short value from the stream. readUTF public String readUTF() throws IOException(Code) returns a string that has been encoded using in the UTF-8 format. readUnsignedByte public int readUnsignedByte() throws IOException(Code) Reads one input byte in the unsigned form. readUnsignedShort public int readUnsignedShort() throws IOException(Code) returns unsigned short. seek public void seek(long newFilePointer) throws IOException(Code) Set the file pointer. setLength public void setLength(long newLength) throws IOException(Code) Sets the length of this file, either extending or truncating it. skipBytes public int skipBytes(int nBytes) throws IOException(Code) skip over nBytes bytes of data sync public void sync(boolean metaData) throws IOException(Code) Force any changes out to the persistent store. write public void write(int b) throws IOException(Code) Writes an int to the output stream . write public void write(byte b) throws IOException(Code) Writes all the bytes in array to the stream. write public void write(byte b, int off, int len) throws IOException(Code) Writes specified number bytes from array to the stream. If the corruption flags are enabled, byte array is corrupted before doing the real write. writeBoolean public void writeBoolean(boolean value) throws IOException(Code) Writes a boolean value to this output stream. writeByte public void writeByte(int value) throws IOException(Code) Writes to the eight low-order bits of ant int. writeBytes public void writeBytes(String str) throws IOException(Code) Writes a string as bytes to the stream. writeChar public void writeChar(int value) throws IOException(Code) Writes a char value to the output stream. Parameters:   value - the char value to be written. exception:   IOException - if an I/O error occurs. writeChars public void writeChars(String str) throws IOException(Code) Writes the string to the stream. writeDouble public void writeDouble(double value) throws IOException(Code) Writes a a double value to the stream. writeFloat public void writeFloat(float value) throws IOException(Code) Writes a float value to the output stream. writeInt public void writeInt(int value) throws IOException(Code) Writes an int value to the output stream. writeLong public void writeLong(long value) throws IOException(Code) Writes a long value to the output stream. writeShort public void writeShort(int value) throws IOException(Code) Writes a short value to the output stream writeUTF public void writeUTF(String str) throws IOException(Code) Writes the string in the utf format. Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)