| Methods Summary |
|---|
| java.lang.Object | _array()
if (hasArray()) {
return array();
}
return null;
|
| int | _arrayOffset()
if (hasArray()) {
return arrayOffset();
}
return 0;
|
| public static java.nio.CharBuffer | allocate(int capacity)Creates a char buffer based on a newly allocated char array.
if (capacity < 0) {
throw new IllegalArgumentException();
}
return BufferFactory.newCharBuffer(capacity);
|
| public java.nio.CharBuffer | append(char c)Writes the given char to the current position and increases the position
by 1.
return put(c);
|
| public java.nio.CharBuffer | append(java.lang.CharSequence csq)Writes all chars of the given character sequence {@code csq} to the
current position of this buffer, and increases the position by the length
of the csq.
Calling this method has the same effect as {@code append(csq.toString())}.
If the {@code CharSequence} is {@code null} the string "null" will be
written to the buffer.
if (csq != null) {
return put(csq.toString());
}
return put("null"); //$NON-NLS-1$
|
| public java.nio.CharBuffer | append(java.lang.CharSequence csq, int start, int end)Writes chars of the given {@code CharSequence} to the current position of
this buffer, and increases the position by the number of chars written.
if (csq == null) {
csq = "null"; //$NON-NLS-1$
}
CharSequence cs = csq.subSequence(start, end);
if (cs.length() > 0) {
return put(cs.toString());
}
return this;
|
| public final char[] | array()Returns the char array which this buffer is based on, if there is one.
return protectedArray();
|
| public final int | arrayOffset()Returns the offset of the char array which this buffer is based on, if
there is one.
The offset is the index of the array corresponds to the zero position of
the buffer.
return protectedArrayOffset();
|
| public abstract java.nio.CharBuffer | asReadOnlyBuffer()Returns a read-only buffer that shares its content with this buffer.
The returned buffer is guaranteed to be a new instance, even if this
buffer is read-only itself. The new buffer's position, limit, capacity
and mark are the same as this buffer's.
The new buffer shares its content with this buffer, which means this
buffer's change of content will be visible to the new buffer. The two
buffer's position, limit and mark are independent.
|
| public final char | charAt(int index)Returns the character located at the specified index in the buffer. The
index value is referenced from the current buffer position.
if (index < 0 || index >= remaining()) {
throw new IndexOutOfBoundsException();
}
return get(position + index);
|
| public abstract java.nio.CharBuffer | compact()Compacts this char buffer.
The remaining chars will be moved to the head of the buffer,
starting from position zero. Then the position is set to
{@code remaining()}; the limit is set to capacity; the mark is cleared.
|
| public int | compareTo(java.nio.CharBuffer otherBuffer)Compare the remaining chars of this buffer to another char
buffer's remaining chars.
int compareRemaining = (remaining() < otherBuffer.remaining()) ? remaining()
: otherBuffer.remaining();
int thisPos = position;
int otherPos = otherBuffer.position;
char thisByte, otherByte;
while (compareRemaining > 0) {
thisByte = get(thisPos);
otherByte = otherBuffer.get(otherPos);
if (thisByte != otherByte) {
return thisByte < otherByte ? -1 : 1;
}
thisPos++;
otherPos++;
compareRemaining--;
}
return remaining() - otherBuffer.remaining();
|
| public abstract java.nio.CharBuffer | duplicate()Returns a duplicated buffer that shares its content with this buffer.
The duplicated buffer's initial position, limit, capacity and mark are
the same as this buffer's. The duplicated buffer's read-only property and
byte order are the same as this buffer's, too.
The new buffer shares its content with this buffer, which means either
buffer's change of content will be visible to the other. The two buffer's
position, limit and mark are independent.
|
| public boolean | equals(java.lang.Object other)Checks whether this char buffer is equal to another object.
If {@code other} is not a char buffer then {@code false} is returned. Two
char buffers are equal if and only if their remaining chars are exactly
the same. Position, limit, capacity and mark are not considered.
if (!(other instanceof CharBuffer)) {
return false;
}
CharBuffer otherBuffer = (CharBuffer) other;
if (remaining() != otherBuffer.remaining()) {
return false;
}
int myPosition = position;
int otherPosition = otherBuffer.position;
boolean equalSoFar = true;
while (equalSoFar && (myPosition < limit)) {
equalSoFar = get(myPosition++) == otherBuffer.get(otherPosition++);
}
return equalSoFar;
|
| public abstract char | get()Returns the char at the current position and increases the position by 1.
|
| public java.nio.CharBuffer | get(char[] dest)Reads chars from the current position into the specified char array and
increases the position by the number of chars read.
Calling this method has the same effect as
{@code get(dest, 0, dest.length)}.
return get(dest, 0, dest.length);
|
| public java.nio.CharBuffer | get(char[] dest, int off, int len)Reads chars from the current position into the specified char array,
starting from the specified offset, and increases the position by the
number of chars read.
int length = dest.length;
if ((off < 0 ) || (len < 0) || (long)off + (long)len > length) {
throw new IndexOutOfBoundsException();
}
if (len > remaining()) {
throw new BufferUnderflowException();
}
for (int i = off; i < off + len; i++) {
dest[i] = get();
}
return this;
|
| public abstract char | get(int index)Returns a char at the specified index; the position is not changed.
|
| public final boolean | hasArray()Indicates whether this buffer is based on a char array and is read/write.
return protectedHasArray();
|
| public int | hashCode()Calculates this buffer's hash code from the remaining chars. The
position, limit, capacity and mark don't affect the hash code.
int myPosition = position;
int hash = 0;
while (myPosition < limit) {
hash = hash + get(myPosition++);
}
return hash;
|
| public abstract boolean | isDirect()Indicates whether this buffer is direct. A direct buffer will try its
best to take advantage of native memory APIs and it may not stay in the
Java heap, so it is not affected by garbage collection.
A char buffer is direct if it is based on a byte buffer and the byte
buffer is direct.
|
| public final int | length()Returns the number of remaining chars.
return remaining();
|
| public abstract java.nio.ByteOrder | order()Returns the byte order used by this buffer when converting chars from/to
bytes.
If this buffer is not based on a byte buffer, then this always returns
the platform's native byte order.
|
| abstract char[] | protectedArray()Child class implements this method to realize {@code array()}.
|
| abstract int | protectedArrayOffset()Child class implements this method to realize {@code arrayOffset()}.
|
| abstract boolean | protectedHasArray()Child class implements this method to realize {@code hasArray()}.
|
| public abstract java.nio.CharBuffer | put(char c)Writes the given char to the current position and increases the position
by 1.
|
| public final java.nio.CharBuffer | put(char[] src)Writes chars from the given char array to the current position and
increases the position by the number of chars written.
Calling this method has the same effect as
{@code put(src, 0, src.length)}.
return put(src, 0, src.length);
|
| public java.nio.CharBuffer | put(char[] src, int off, int len)Writes chars from the given char array, starting from the specified offset,
to the current position and increases the position by the number of chars
written.
int length = src.length;
if ((off < 0 ) || (len < 0) || (long)off + (long)len > length) {
throw new IndexOutOfBoundsException();
}
if (len > remaining()) {
throw new BufferOverflowException();
}
for (int i = off; i < off + len; i++) {
put(src[i]);
}
return this;
|
| public java.nio.CharBuffer | put(java.nio.CharBuffer src)Writes all the remaining chars of the {@code src} char buffer to this
buffer's current position, and increases both buffers' position by the
number of chars copied.
if (src == this) {
throw new IllegalArgumentException();
}
if (src.remaining() > remaining()) {
throw new BufferOverflowException();
}
char[] contents = new char[src.remaining()];
src.get(contents);
put(contents);
return this;
|
| public abstract java.nio.CharBuffer | put(int index, char c)Writes a char to the specified index of this buffer; the position is not
changed.
|
| public final java.nio.CharBuffer | put(java.lang.String str)Writes all chars of the given string to the current position of this
buffer, and increases the position by the length of string.
Calling this method has the same effect as
{@code put(str, 0, str.length())}.
return put(str, 0, str.length());
|
| public java.nio.CharBuffer | put(java.lang.String str, int start, int end)Writes chars of the given string to the current position of this buffer,
and increases the position by the number of chars written.
int length = str.length();
if (start < 0 || end < start || end > length) {
throw new IndexOutOfBoundsException();
}
if (end - start > remaining()) {
throw new BufferOverflowException();
}
for (int i = start; i < end; i++) {
put(str.charAt(i));
}
return this;
|
| public int | read(java.nio.CharBuffer target)Reads characters from this buffer and puts them into {@code target}. The
number of chars that are copied is either the number of remaining chars
in this buffer or the number of remaining chars in {@code target},
whichever is smaller.
if(target == this){
throw new IllegalArgumentException();
}
if (remaining() == 0) {
return target.remaining()==0?0:-1;
}
int result = Math.min(target.remaining(), remaining());
char[] chars = new char[result];
get(chars);
target.put(chars);
return result;
|
| public abstract java.nio.CharBuffer | slice()Returns a sliced buffer that shares its content with this buffer.
The sliced buffer's capacity will be this buffer's {@code remaining()},
and its zero position will correspond to this buffer's current position.
The new buffer's position will be 0, limit will be its capacity, and its
mark is cleared. The new buffer's read-only property and byte order are
same as this buffer.
The new buffer shares its content with this buffer, which means either
buffer's change of content will be visible to the other. The two buffer's
position, limit and mark are independent.
|
| public abstract java.lang.CharSequence | subSequence(int start, int end)Returns a new char buffer representing a sub-sequence of this buffer's
current remaining content.
The new buffer's position will be {@code position() + start}, limit will
be {@code position() + end}, capacity will be the same as this buffer.
The new buffer's read-only property and byte order are the same as this
buffer.
The new buffer shares its content with this buffer, which means either
buffer's change of content will be visible to the other. The two buffer's
position, limit and mark are independent.
|
| public java.lang.String | toString()Returns a string representing the current remaining chars of this buffer.
StringBuffer strbuf = new StringBuffer();
for (int i = position; i < limit; i++) {
strbuf.append(get(i));
}
return strbuf.toString();
|
| public static java.nio.CharBuffer | wrap(char[] array)Creates a new char buffer by wrapping the given char array.
Calling this method has the same effect as
{@code wrap(array, 0, array.length)}.
return wrap(array, 0, array.length);
|
| public static java.nio.CharBuffer | wrap(char[] array, int start, int len)Creates a new char buffer by wrapping the given char array.
The new buffer's position will be {@code start}, limit will be
{@code start + len}, capacity will be the length of the array.
int length = array.length;
if ((start < 0) || (len < 0)
|| (long) start + (long) len > length) {
throw new IndexOutOfBoundsException();
}
CharBuffer buf = BufferFactory.newCharBuffer(array);
buf.position = start;
buf.limit = start + len;
return buf;
|
| public static java.nio.CharBuffer | wrap(java.lang.CharSequence chseq)Creates a new char buffer by wrapping the given char sequence.
Calling this method has the same effect as
{@code wrap(chseq, 0, chseq.length())}.
return BufferFactory.newCharBuffer(chseq);
|
| public static java.nio.CharBuffer | wrap(java.lang.CharSequence chseq, int start, int end)Creates a new char buffer by wrapping the given char sequence.
The new buffer's position will be {@code start}, limit will be
{@code end}, capacity will be the length of the char sequence. The new
buffer is read-only.
if (chseq == null) {
throw new NullPointerException();
}
if (start < 0 || end < start || end > chseq.length()) {
throw new IndexOutOfBoundsException();
}
CharBuffer result = BufferFactory.newCharBuffer(chseq);
result.position = start;
result.limit = end;
return result;
|
