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## com.trolltech.qt.core
Class QByteArrayMatcher

    java.lang.Object
      com.trolltech.qt.internal.QSignalEmitterInternal
          com.trolltech.qt.QSignalEmitter
              com.trolltech.qt.QtJambiObject
                  com.trolltech.qt.core.QByteArrayMatcher

All Implemented Interfaces:
  QtJambiInterface, java.lang.Cloneable

    public class QByteArrayMatcher

extends QtJambiObject
implements java.lang.Cloneable

The `QByteArrayMatcher` class holds a sequence of bytes that can be quickly matched in a byte array. This class is useful when you have a sequence of bytes that you want to repeatedly match against some byte arrays (perhaps in a loop), or when you want to search for the same sequence of bytes multiple times in the same byte array. Using a matcher object and `indexIn()` is faster than matching a plain `QByteArray` with `QByteArray::indexOf()` if repeated matching takes place. This class offers no benefit if you are doing one-off byte array matches.

Create the `QByteArrayMatcher` with the `QByteArray` you want to search for. Then call `indexIn()` on the `QByteArray` that you want to search.

See also:
  `QByteArray`, and `QStringMatcher`.

Nested Class Summary

Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter
`QSignalEmitter.AbstractSignal, QSignalEmitter.Signal0, QSignalEmitter.Signal1, QSignalEmitter.Signal2, QSignalEmitter.Signal3, QSignalEmitter.Signal4, QSignalEmitter.Signal5, QSignalEmitter.Signal6, QSignalEmitter.Signal7, QSignalEmitter.Signal8, QSignalEmitter.Signal9`

Nested classes/interfaces inherited from class com.trolltech.qt.internal.QSignalEmitterInternal
`com.trolltech.qt.internal.QSignalEmitterInternal.AbstractSignalInternal`

Field Summary

Fields inherited from class com.trolltech.qt.internal.QSignalEmitterInternal
`currentSender`

Constructor Summary
`QByteArrayMatcher()` Constructs an empty byte array matcher that won't match anything.
`QByteArrayMatcher(QByteArray pattern)` Constructs a byte array matcher that will search for `pattern`.
`QByteArrayMatcher(QByteArrayMatcher other)` Copies the `other` byte array matcher to this byte array matcher.

Method Summary
`QByteArrayMatcher` | `clone()` This method is reimplemented for internal reasons
`int` | `indexIn(QByteArray ba)` Searches the byte array `ba`, from byte position `from` (default 0, i.
`int` | `indexIn(QByteArray ba, int from)` Searches the byte array `ba`, from byte position `from` (default 0, i.
`QByteArray` | `pattern()` Returns the byte array pattern that this byte array matcher will search for.
`void` | `setPattern(QByteArray pattern)` Sets the byte array that this byte array matcher will search for to `pattern`.

Methods inherited from class com.trolltech.qt.QtJambiObject
`dispose, disposed, equals, finalize, reassignNativeResources, tr, tr, tr`

Methods inherited from class com.trolltech.qt.QSignalEmitter
`blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread`

Methods inherited from class com.trolltech.qt.internal.QSignalEmitterInternal
`__qt_signalInitialization`

Methods inherited from class java.lang.Object
`getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface com.trolltech.qt.QtJambiInterface
`disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership`

Constructor Detail

### QByteArrayMatcher

    public QByteArrayMatcher()

  Constructs an empty byte array matcher that won't match anything. Call `setPattern()` to give it a pattern to match.

### QByteArrayMatcher

    public QByteArrayMatcher(QByteArray pattern)

  Constructs a byte array matcher that will search for `pattern`. Call `indexIn()` to perform a search.

### QByteArrayMatcher

    public QByteArrayMatcher(QByteArrayMatcher other)

  Copies the `other` byte array matcher to this byte array matcher.

Method Detail

### indexIn

    public final int indexIn(QByteArray ba)

  Searches the byte array `ba`, from byte position `from` (default 0, i. . from the first byte), for the byte array `pattern()` that was set in the constructor or in the most recent call to `setPattern()`. Returns the position where the `pattern()` matched in `ba`, or -1 if no match was found.

### indexIn

    public final int indexIn(QByteArray ba,
                             int from)

  Searches the byte array `ba`, from byte position `from` (default 0, i. . from the first byte), for the byte array `pattern()` that was set in the constructor or in the most recent call to `setPattern()`. Returns the position where the `pattern()` matched in `ba`, or -1 if no match was found.

### pattern

    public final QByteArray pattern()

  Returns the byte array pattern that this byte array matcher will search for.

See also:
  `setPattern()`.

### setPattern

    public final void setPattern(QByteArray pattern)

  Sets the byte array that this byte array matcher will search for to `pattern`.

See also:
  `pattern()`, and `indexIn()`.

### clone

    public QByteArrayMatcher clone()

  This method is reimplemented for internal reasons

  Overrides:
    `clone` in class `java.lang.Object`

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