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Java Source Code / Java Documentation » Database DBMS » db derby 10.2 » org.apache.derby.iapi.services.io   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.derby.iapi.services.io.ArrayUtil ArrayUtil abstract public class ArrayUtil (Code) Utility class for constructing and reading and writing arrays from/to formatId streams. version:    0.1 author:    Rick Hillegas Method Summary public static  void readArrayItems(ObjectInput in, Object[] a)      Read an array of objects out of a stream. Parameters:   in - Input stream Parameters:   a - array to read into exception:   java.io.IOException - The write caused an IOException. public static  int readArrayLength(ObjectInput in)      Read the length of an array of objects in an object stream. Parameters:   in - Input stream. length of the array of objects exception:   java.io.IOException - The write caused an IOException. public static  boolean[] readBooleanArray(ObjectInput in)      Read an array of integers from an ObjectInput. public static  int[] readIntArray(ObjectInput in)      Read an array of integers from an ObjectInput. public static  int[][] readInts(ObjectInput in)      public static  long[] readLongArray(ObjectInput in)      Read an array of integers from an ObjectInput. public static  Object[] readObjectArray(ObjectInput in)      Reads an array of objects from the stream. Parameters:   in - Input stream exception:   java.io.IOException - The write caused an IOException. public static  String[] readStringArray(ObjectInput in)      Read an array of strings from an ObjectInput. public static  void writeArray(ObjectOutput out, Object[] a)      Write an array of objects and length to an output stream. Does equivalent of writeArrayLength() followed by writeArrayItems() Parameters:   out - Object output stream to write to. Parameters:   a - array of objects to write. exception:   java.io.IOException - The write caused an IOException. public static  void writeArrayItems(ObjectOutput out, Object[] a)      Write an array of objects to an output stream. Parameters:   out - Object output stream to write to. Parameters:   a - array of objects to write. exception:   java.io.IOException - The write caused an IOException. public static  void writeArrayLength(ObjectOutput out, Object[] a)      Write the length of an array of objects to an output stream. The length Parameters:   out - ObjectOutput stream Parameters:   a - array of objects whose length should be written. exception:   java.io.IOException - The write caused an IOException. public static  void writeBooleanArray(ObjectOutput out, boolean[] a)      Write an array of booleans to an ObjectOutput. public static  void writeIntArray(ObjectOutput out, int[] a)      Write an array of integers to an ObjectOutput. public static  void writeInts(ObjectOutput out, int[][] val)      public static  void writeLongArray(ObjectOutput out, long[] a)      Write an array of longs to an ObjectOutput. Method Detail readArrayItems public static void readArrayItems(ObjectInput in, Object[] a) throws IOException, ClassNotFoundException(Code) Read an array of objects out of a stream. Parameters:   in - Input stream Parameters:   a - array to read into exception:   java.io.IOException - The write caused an IOException. exception:   java.lang.ClassNotFoundException - The Class for an Object we are reading does not exist readArrayLength public static int readArrayLength(ObjectInput in) throws IOException(Code) Read the length of an array of objects in an object stream. Parameters:   in - Input stream. length of the array of objects exception:   java.io.IOException - The write caused an IOException. readBooleanArray public static boolean[] readBooleanArray(ObjectInput in) throws IOException(Code) Read an array of integers from an ObjectInput. This allocates the array. Parameters:   in - the ObjectInput. the array of integers. exception:   java.io.IOException - The write caused an IOException. readIntArray public static int[] readIntArray(ObjectInput in) throws IOException(Code) Read an array of integers from an ObjectInput. This allocates the array. Parameters:   in - the ObjectInput. the array of integers. exception:   java.io.IOException - The write caused an IOException. readInts public static int[][] readInts(ObjectInput in) throws IOException, ClassNotFoundException(Code) readLongArray public static long[] readLongArray(ObjectInput in) throws IOException(Code) Read an array of integers from an ObjectInput. This allocates the array. Parameters:   in - the ObjectInput. the array of integers. exception:   java.io.IOException - The write caused an IOException. readObjectArray public static Object[] readObjectArray(ObjectInput in) throws IOException, ClassNotFoundException(Code) Reads an array of objects from the stream. Parameters:   in - Input stream exception:   java.io.IOException - The write caused an IOException. exception:   java.lang.ClassNotFoundException - The Class for an Object we are reading does not exist readStringArray public static String[] readStringArray(ObjectInput in) throws IOException, ClassNotFoundException(Code) Read an array of strings from an ObjectInput. This allocates the array. Parameters:   in - the ObjectInput. the array of integers. exception:   java.io.IOException - The write caused an IOException. writeArray public static void writeArray(ObjectOutput out, Object[] a) throws IOException(Code) Write an array of objects and length to an output stream. Does equivalent of writeArrayLength() followed by writeArrayItems() Parameters:   out - Object output stream to write to. Parameters:   a - array of objects to write. exception:   java.io.IOException - The write caused an IOException. writeArrayItems public static void writeArrayItems(ObjectOutput out, Object[] a) throws IOException(Code) Write an array of objects to an output stream. Parameters:   out - Object output stream to write to. Parameters:   a - array of objects to write. exception:   java.io.IOException - The write caused an IOException. writeArrayLength public static void writeArrayLength(ObjectOutput out, Object[] a) throws IOException(Code) Write the length of an array of objects to an output stream. The length Parameters:   out - ObjectOutput stream Parameters:   a - array of objects whose length should be written. exception:   java.io.IOException - The write caused an IOException. writeBooleanArray public static void writeBooleanArray(ObjectOutput out, boolean[] a) throws IOException(Code) Write an array of booleans to an ObjectOutput. This writes the array in a format readBooleanArray understands. Parameters:   out - the ObjectOutput. Parameters:   a - the array. exception:   java.io.IOException - The write caused an IOException. writeIntArray public static void writeIntArray(ObjectOutput out, int[] a) throws IOException(Code) Write an array of integers to an ObjectOutput. This writes the array in a format readIntArray understands. Parameters:   out - the ObjectOutput. Parameters:   a - the array. exception:   java.io.IOException - The write caused an IOException. writeInts public static void writeInts(ObjectOutput out, int[][] val) throws IOException(Code) writeLongArray public static void writeLongArray(ObjectOutput out, long[] a) throws IOException(Code) Write an array of longs to an ObjectOutput. This writes the array in a format readLongArray understands. Parameters:   out - the ObjectOutput. Parameters:   a - the array. exception:   java.io.IOException - The write caused an IOException. 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)