File	Doc	Category	Size	Date	Package
DataFlavor.java	API Doc	Java SE 6 API	54780	Tue Jun 10 00:25:20 BST 2008	java.awt.datatransfer

DataFlavor

• java.lang.Object

DataFlavor flavor1 = new DataFlavor(Object.class, "X-test/test; class=<java.lang.Object>; foo=bar");
DataFlavor flavor2 = new DataFlavor(Object.class, "X-test/test; class=<java.lang.Object>; x=y");
// The following returns true.
flavor1.equals(flavor2);

Fields Summary
private static final long	serialVersionUID
private static final Class	ioInputStreamClass
public static final DataFlavor	stringFlavor The DataFlavor representing a Java Unicode String class, where: representationClass = java.lang.String mimeType = "application/x-java-serialized-object"
public static final DataFlavor	imageFlavor The DataFlavor representing a Java Image class, where: representationClass = java.awt.Image mimeType = "image/x-java-image"
public static final DataFlavor	plainTextFlavor The DataFlavor representing plain text with Unicode encoding, where: representationClass = InputStream mimeType = "text/plain; charset=unicode" This DataFlavor has been deprecated because (1) Its representation is an InputStream, an 8-bit based representation, while Unicode is a 16-bit character set; and (2) The charset "unicode" is not well-defined. "unicode" implies a particular platform's implementation of Unicode, not a cross-platform implementation.
public static final String	javaSerializedObjectMimeType A MIME Content-Type of application/x-java-serialized-object represents a graph of Java object(s) that have been made persistent. The representation class associated with this DataFlavor identifies the Java type of an object returned as a reference from an invocation java.awt.datatransfer.getTransferData.
public static final DataFlavor	javaFileListFlavor To transfer a list of files to/from Java (and the underlying platform) a DataFlavor of this type/subtype and representation class of java.util.List is used. Each element of the list is required/guaranteed to be of type java.io.File.
public static final String	javaJVMLocalObjectMimeType To transfer a reference to an arbitrary Java object reference that has no associated MIME Content-type, across a Transferable interface WITHIN THE SAME JVM, a DataFlavor with this type/subtype is used, with a representationClass equal to the type of the class/interface being passed across the Transferable. The object reference returned from Transferable.getTransferData for a DataFlavor with this MIME Content-Type is required to be an instance of the representation Class of the DataFlavor.
public static final String	javaRemoteObjectMimeType In order to pass a live link to a Remote object via a Drag and Drop ACTION_LINK operation a Mime Content Type of application/x-java-remote-object should be used, where the representation class of the DataFlavor represents the type of the Remote interface to be transferred.
private static Comparator	textFlavorComparator
transient int	atom
MimeType	mimeType
private String	humanPresentableName
private Class	representationClass Java class of objects this DataFlavor represents

Constructors Summary
public DataFlavor() Constructs a new DataFlavor. This constructor is provided only for the purpose of supporting the Externalizable interface. It is not intended for public (client) use. since 1.2 super();
private DataFlavor(String primaryType, String subType, MimeTypeParameterList params, Class representationClass, String humanPresentableName) Constructs a fully specified DataFlavor. exception NullPointerException if either primaryType, subType or representationClass is null super(); if (primaryType == null) { throw new NullPointerException("primaryType"); } if (subType == null) { throw new NullPointerException("subType"); } if (representationClass == null) { throw new NullPointerException("representationClass"); } if (params == null) params = new MimeTypeParameterList(); params.set("class", representationClass.getName()); if (humanPresentableName == null) { humanPresentableName = (String)params.get("humanPresentableName"); if (humanPresentableName == null) humanPresentableName = primaryType + "/" + subType; } try { mimeType = new MimeType(primaryType, subType, params); } catch (MimeTypeParseException mtpe) { throw new IllegalArgumentException("MimeType Parse Exception: " + mtpe.getMessage()); } this.representationClass = representationClass; this.humanPresentableName = humanPresentableName; mimeType.removeParameter("humanPresentableName");
public DataFlavor(Class representationClass, String humanPresentableName) Constructs a DataFlavor that represents a Java class. The returned DataFlavor will have the following characteristics: representationClass = representationClass mimeType = application/x-java-serialized-object param representationClass the class used to transfer data in this flavor param humanPresentableName the human-readable string used to identify this flavor; if this parameter is null then the value of the the MIME Content Type is used exception NullPointerException if representationClass is null this("application", "x-java-serialized-object", null, representationClass, humanPresentableName); if (representationClass == null) { throw new NullPointerException("representationClass"); }
public DataFlavor(String mimeType, String humanPresentableName) Constructs a DataFlavor that represents a MimeType. The returned DataFlavor will have the following characteristics: If the mimeType is "application/x-java-serialized-object; class=<representation class>", the result is the same as calling new DataFlavor(Class:forName(<representation class>). Otherwise: representationClass = InputStream mimeType = mimeType param mimeType the string used to identify the MIME type for this flavor; if the the mimeType does not specify a "class=" parameter, or if the class is not successfully loaded, then an IllegalArgumentException is thrown param humanPresentableName the human-readable string used to identify this flavor; if this parameter is null then the value of the the MIME Content Type is used exception IllegalArgumentException if mimeType is invalid or if the class is not successfully loaded exception NullPointerException if mimeType is null super(); if (mimeType == null) { throw new NullPointerException("mimeType"); } try { initialize(mimeType, humanPresentableName, this.getClass().getClassLoader()); } catch (MimeTypeParseException mtpe) { throw new IllegalArgumentException("failed to parse:" + mimeType); } catch (ClassNotFoundException cnfe) { throw new IllegalArgumentException("can't find specified class: " + cnfe.getMessage()); }
public DataFlavor(String mimeType, String humanPresentableName, ClassLoader classLoader) Constructs a DataFlavor that represents a MimeType. The returned DataFlavor will have the following characteristics: If the mimeType is "application/x-java-serialized-object; class=<representation class>", the result is the same as calling new DataFlavor(Class:forName(<representation class>). Otherwise: representationClass = InputStream mimeType = mimeType param mimeType the string used to identify the MIME type for this flavor param humanPresentableName the human-readable string used to identify this flavor param classLoader the class loader to use exception ClassNotFoundException if the class is not loaded exception IllegalArgumentException if mimeType is invalid exception NullPointerException if mimeType is null super(); if (mimeType == null) { throw new NullPointerException("mimeType"); } try { initialize(mimeType, humanPresentableName, classLoader); } catch (MimeTypeParseException mtpe) { throw new IllegalArgumentException("failed to parse:" + mimeType); }
public DataFlavor(String mimeType) Constructs a DataFlavor from a mimeType string. The string can specify a "class=" parameter to create a DataFlavor with the desired representation class. If the string does not contain "class=" parameter, java.io.InputStream is used as default. param mimeType the string used to identify the MIME type for this flavor; if the class specified by "class=" parameter is not successfully loaded, then an ClassNotFoundException is thrown exception ClassNotFoundException if the class is not loaded exception IllegalArgumentException if mimeType is invalid exception NullPointerException if mimeType is null super(); if (mimeType == null) { throw new NullPointerException("mimeType"); } try { initialize(mimeType, null, this.getClass().getClassLoader()); } catch (MimeTypeParseException mtpe) { throw new IllegalArgumentException("failed to parse:" + mimeType); }

Methods Summary
public java.lang.Object	clone() Returns a clone of this DataFlavor. return a clone of this DataFlavor Object newObj = super.clone(); if (mimeType != null) { ((DataFlavor)newObj).mimeType = (MimeType)mimeType.clone(); } return newObj;
private static java.awt.datatransfer.DataFlavor	createConstant(java.lang.Class rc, java.lang.String prn) try { return new DataFlavor(rc, prn); } catch (Exception e) { return null; }
private static java.awt.datatransfer.DataFlavor	createConstant(java.lang.String mt, java.lang.String prn) try { return new DataFlavor(mt, prn); } catch (Exception e) { return null; }
public boolean	equals(java.lang.Object o) Tests an arbitrary Object to this DataFlavor for equality. Two DataFlavors are considered equal if and only if their MIME primary type and subtype and representation class are equal. Additionally, if the primary type is "text", the subtype denotes a text flavor which supports the charset parameter, and the representation class is not java.io.Reader, java.lang.String, java.nio.CharBuffer, or [C, the charset parameter must also be equal. If a charset is not explicitly specified for one or both DataFlavors, the platform default encoding is assumed. See selectBestTextFlavor for a list of text flavors which support the charset parameter. param o the Object to compare with this return true if that is equivalent to this DataFlavor; false otherwise see #selectBestTextFlavor return ((o instanceof DataFlavor) && equals((DataFlavor)o));
public boolean	equals(java.awt.datatransfer.DataFlavor that) Tests a DataFlavor to this DataFlavor for equality. Two DataFlavors are considered equal if and only if their MIME primary type and subtype and representation class are equal. Additionally, if the primary type is "text", the subtype denotes a text flavor which supports the charset parameter, and the representation class is not java.io.Reader, java.lang.String, java.nio.CharBuffer, or [C, the charset parameter must also be equal. If a charset is not explicitly specified for one or both DataFlavors, the platform default encoding is assumed. See selectBestTextFlavor for a list of text flavors which support the charset parameter. param that the DataFlavor to compare with this return true if that is equivalent to this DataFlavor; false otherwise see #selectBestTextFlavor if (that == null) { return false; } if (this == that) { return true; } if (representationClass == null) { if (that.getRepresentationClass() != null) { return false; } } else { if (!representationClass.equals(that.getRepresentationClass())) { return false; } } if (mimeType == null) { if (that.mimeType != null) { return false; } } else { if (!mimeType.match(that.mimeType)) { return false; } if ("text".equals(getPrimaryType()) && DataTransferer.doesSubtypeSupportCharset(this) && representationClass != null && !(isRepresentationClassReader() || String.class.equals(representationClass) || isRepresentationClassCharBuffer() || DataTransferer.charArrayClass.equals(representationClass))) { String thisCharset = DataTransferer.canonicalName(getParameter("charset")); String thatCharset = DataTransferer.canonicalName(that.getParameter("charset")); if (thisCharset == null) { if (thatCharset != null) { return false; } } else { if (!thisCharset.equals(thatCharset)) { return false; } } } } return true;
public boolean	equals(java.lang.String s) Compares only the mimeType against the passed in String and representationClass is not considered in the comparison. If representationClass needs to be compared, then equals(new DataFlavor(s)) may be used. deprecated As inconsistent with hashCode() contract, use isMimeTypeEqual(String) instead. return true if the String (MimeType) is equal if (s == null || mimeType == null) return false; return isMimeTypeEqual(s);
public final java.lang.Class	getDefaultRepresentationClass() return ioInputStreamClass;
public final java.lang.String	getDefaultRepresentationClassAsString() return getDefaultRepresentationClass().getName();
public java.lang.String	getHumanPresentableName() Returns the human presentable name for the data format that this DataFlavor represents. This name would be localized for different countries. return the human presentable name for the data format that this DataFlavor represents return humanPresentableName;
public java.lang.String	getMimeType() Returns the MIME type string for this DataFlavor. return the MIME type string for this flavor return (mimeType != null) ? mimeType.toString() : null;
public java.lang.String	getParameter(java.lang.String paramName) Returns the human presentable name for this DataFlavor if paramName equals "humanPresentableName". Otherwise returns the MIME type value associated with paramName. param paramName the parameter name requested return the value of the name parameter, or null if there is no associated value if (paramName.equals("humanPresentableName")) { return humanPresentableName; } else { return (mimeType != null) ? mimeType.getParameter(paramName) : null; }
public java.lang.String	getPrimaryType() Returns the primary MIME type for this DataFlavor. return the primary MIME type of this DataFlavor return (mimeType != null) ? mimeType.getPrimaryType() : null;
public java.io.Reader	getReaderForText(java.awt.datatransfer.Transferable transferable) Gets a Reader for a text flavor, decoded, if necessary, for the expected charset (encoding). The supported representation classes are java.io.Reader, java.lang.String, java.nio.CharBuffer, [C, java.io.InputStream, java.nio.ByteBuffer, and [B. Because text flavors which do not support the charset parameter are encoded in a non-standard format, this method should not be called for such flavors. However, in order to maintain backward-compatibility, if this method is called for such a flavor, this method will treat the flavor as though it supports the charset parameter and attempt to decode it accordingly. See selectBestTextFlavor for a list of text flavors which do not support the charset parameter. param transferable the Transferable whose data will be requested in this flavor return a Reader to read the Transferable's data exception IllegalArgumentException if the representation class is not one of the seven listed above exception IllegalArgumentException if the Transferable has null data exception NullPointerException if the Transferable is null exception UnsupportedEncodingException if this flavor's representation is java.io.InputStream, java.nio.ByteBuffer, or [B and this flavor's encoding is not supported by this implementation of the Java platform exception UnsupportedFlavorException if the Transferable does not support this flavor exception IOException if the data cannot be read because of an I/O error see #selectBestTextFlavor since 1.3 Object transferObject = transferable.getTransferData(this); if (transferObject == null) { throw new IllegalArgumentException ("getTransferData() returned null"); } if (transferObject instanceof Reader) { return (Reader)transferObject; } else if (transferObject instanceof String) { return new StringReader((String)transferObject); } else if (transferObject instanceof CharBuffer) { CharBuffer buffer = (CharBuffer)transferObject; int size = buffer.remaining(); char[] chars = new char[size]; buffer.get(chars, 0, size); return new CharArrayReader(chars); } else if (transferObject instanceof char[]) { return new CharArrayReader((char[])transferObject); } InputStream stream = null; if (transferObject instanceof InputStream) { stream = (InputStream)transferObject; } else if (transferObject instanceof ByteBuffer) { ByteBuffer buffer = (ByteBuffer)transferObject; int size = buffer.remaining(); byte[] bytes = new byte[size]; buffer.get(bytes, 0, size); stream = new ByteArrayInputStream(bytes); } else if (transferObject instanceof byte[]) { stream = new ByteArrayInputStream((byte[])transferObject); } if (stream == null) { throw new IllegalArgumentException("transfer data is not Reader, String, CharBuffer, char array, InputStream, ByteBuffer, or byte array"); } String encoding = getParameter("charset"); return (encoding == null) ? new InputStreamReader(stream) : new InputStreamReader(stream, encoding);
public java.lang.Class	getRepresentationClass() Returns the Class which objects supporting this DataFlavor will return when this DataFlavor is requested. return the Class which objects supporting this DataFlavor will return when this DataFlavor is requested return representationClass;
public java.lang.String	getSubType() Returns the sub MIME type of this DataFlavor. return the Sub MIME type of this DataFlavor return (mimeType != null) ? mimeType.getSubType() : null;
public static final java.awt.datatransfer.DataFlavor	getTextPlainUnicodeFlavor() Returns a DataFlavor representing plain text with Unicode encoding, where: representationClass = java.io.InputStream mimeType = "text/plain; charset=<platform default Unicode encoding>" Sun's implementation for Microsoft Windows uses the encoding utf-16le. Sun's implementation for Solaris and Linux uses the encoding iso-10646-ucs-2. return a DataFlavor representing plain text with Unicode encoding since 1.3 String encoding = null; DataTransferer transferer = DataTransferer.getInstance(); if (transferer != null) { encoding = transferer.getDefaultUnicodeEncoding(); } return new DataFlavor( "text/plain;charset="+encoding +";class=java.io.InputStream", "Plain Text");
public int	hashCode() Returns hash code for this DataFlavor. For two equal DataFlavors, hash codes are equal. For the String that matches DataFlavor.equals(String), it is not guaranteed that DataFlavor's hash code is equal to the hash code of the String. return a hash code for this DataFlavor int total = 0; if (representationClass != null) { total += representationClass.hashCode(); } if (mimeType != null) { String primaryType = mimeType.getPrimaryType(); if (primaryType != null) { total += primaryType.hashCode(); } // Do not add subType.hashCode() to the total. equals uses // MimeType.match which reports a match if one or both of the // subTypes is '*', regardless of the other subType. if ("text".equals(primaryType) && DataTransferer.doesSubtypeSupportCharset(this) && representationClass != null && !(isRepresentationClassReader() || String.class.equals(representationClass) || isRepresentationClassCharBuffer() || DataTransferer.charArrayClass.equals (representationClass))) { String charset = DataTransferer.canonicalName(getParameter("charset")); if (charset != null) { total += charset.hashCode(); } } } return total;
private void	initialize(java.lang.String mimeType, java.lang.String humanPresentableName, java.lang.ClassLoader classLoader) Common initialization code called from various constructors. param mimeType the MIME Content Type (must have a class= param) param humanPresentableName the human Presentable Name or null param classLoader the fallback class loader to resolve against throws MimeTypeParseException throws ClassNotFoundException throws NullPointerException if mimeType is null see tryToLoadClass if (mimeType == null) { throw new NullPointerException("mimeType"); } this.mimeType = new MimeType(mimeType); // throws String rcn = getParameter("class"); if (rcn == null) { if ("application/x-java-serialized-object".equals(this.mimeType.getBaseType())) throw new IllegalArgumentException("no representation class specified for:" + mimeType); else representationClass = java.io.InputStream.class; // default } else { // got a class name representationClass = DataFlavor.tryToLoadClass(rcn, classLoader); } this.mimeType.setParameter("class", representationClass.getName()); if (humanPresentableName == null) { humanPresentableName = this.mimeType.getParameter("humanPresentableName"); if (humanPresentableName == null) humanPresentableName = this.mimeType.getPrimaryType() + "/" + this.mimeType.getSubType(); } this.humanPresentableName = humanPresentableName; // set it. this.mimeType.removeParameter("humanPresentableName"); // just in case
public boolean	isFlavorJavaFileListType() Returns true if the DataFlavor specified represents a list of file objects. return true if the DataFlavor specified represents a List of File objects if (mimeType == null || representationClass == null) return false; return java.util.List.class.isAssignableFrom(representationClass) && mimeType.match(javaFileListFlavor.mimeType);
public boolean	isFlavorRemoteObjectType() Returns true if the DataFlavor specified represents a remote object. return true if the DataFlavor specified represents a Remote Object return isRepresentationClassRemote() && isRepresentationClassSerializable() && isMimeTypeEqual(javaRemoteObjectMimeType);
public boolean	isFlavorSerializedObjectType() Returns true if the DataFlavor specified represents a serialized object. return true if the DataFlavor specified represents a Serialized Object return isRepresentationClassSerializable() && isMimeTypeEqual(javaSerializedObjectMimeType);
public boolean	isFlavorTextType() Returns whether this DataFlavor is a valid text flavor for this implementation of the Java platform. Only flavors equivalent to DataFlavor.stringFlavor and DataFlavors with a primary MIME type of "text" can be valid text flavors. If this flavor supports the charset parameter, it must be equivalent to DataFlavor.stringFlavor, or its representation must be java.io.Reader, java.lang.String, java.nio.CharBuffer, [C, java.io.InputStream, java.nio.ByteBuffer, or [B. If the representation is java.io.InputStream, java.nio.ByteBuffer, or [B, then this flavor's charset parameter must be supported by this implementation of the Java platform. If a charset is not specified, then the platform default charset, which is always supported, is assumed. If this flavor does not support the charset parameter, its representation must be java.io.InputStream, java.nio.ByteBuffer, or [B. See selectBestTextFlavor for a list of text flavors which support the charset parameter. return true if this DataFlavor is a valid text flavor as described above; false otherwise see #selectBestTextFlavor since 1.4 return (DataTransferer.isFlavorCharsetTextType(this) || DataTransferer.isFlavorNoncharsetTextType(this));
public boolean	isMimeTypeEqual(java.lang.String mimeType) Returns whether the string representation of the MIME type passed in is equivalent to the MIME type of this DataFlavor. Parameters are not included in the comparison. param mimeType the string representation of the MIME type return true if the string representation of the MIME type passed in is equivalent to the MIME type of this DataFlavor; false otherwise throws NullPointerException if mimeType is null // JCK Test DataFlavor0117: if 'mimeType' is null, throw NPE if (mimeType == null) { throw new NullPointerException("mimeType"); } if (this.mimeType == null) { return false; } try { return this.mimeType.match(new MimeType(mimeType)); } catch (MimeTypeParseException mtpe) { return false; }
public final boolean	isMimeTypeEqual(java.awt.datatransfer.DataFlavor dataFlavor) Compares the mimeType of two DataFlavor objects. No parameters are considered. param dataFlavor the DataFlavor to be compared return true if the MimeTypes are equal, otherwise false return isMimeTypeEqual(dataFlavor.mimeType);
private boolean	isMimeTypeEqual(java.awt.datatransfer.MimeType mtype) Compares the mimeType of two DataFlavor objects. No parameters are considered. return true if the MimeTypes are equal, otherwise false if (this.mimeType == null) { return (mtype == null); } return mimeType.match(mtype);
public boolean	isMimeTypeSerializedObject() Does the DataFlavor represent a serialized object? return isMimeTypeEqual(javaSerializedObjectMimeType);
public boolean	isRepresentationClassByteBuffer() Returns whether the representation class for this DataFlavor is java.nio.ByteBuffer or a subclass thereof. since 1.4 return java.nio.ByteBuffer.class.isAssignableFrom(representationClass);
public boolean	isRepresentationClassCharBuffer() Returns whether the representation class for this DataFlavor is java.nio.CharBuffer or a subclass thereof. since 1.4 return java.nio.CharBuffer.class.isAssignableFrom(representationClass);
public boolean	isRepresentationClassInputStream() Does the DataFlavor represent a java.io.InputStream? return ioInputStreamClass.isAssignableFrom(representationClass);
public boolean	isRepresentationClassReader() Returns whether the representation class for this DataFlavor is java.io.Reader or a subclass thereof. since 1.4 return java.io.Reader.class.isAssignableFrom(representationClass);
public boolean	isRepresentationClassRemote() Returns true if the representation class is Remote. return true if the representation class is Remote return java.rmi.Remote.class.isAssignableFrom(representationClass);
public boolean	isRepresentationClassSerializable() Returns true if the representation class can be serialized. return true if the representation class can be serialized return java.io.Serializable.class.isAssignableFrom(representationClass);
public boolean	match(java.awt.datatransfer.DataFlavor that) Tests a DataFlavor to this DataFlavor for equality. Two DataFlavors are considered equal if and only if their MIME primary type and subtype and representation class are equal. Additionally, if the primary type is "text", the subtype denotes a text flavor which supports the charset parameter, and the representation class is not java.io.Reader, java.lang.String, java.nio.CharBuffer, or [C, the charset parameter must also be equal. If a charset is not explicitly specified for one or both DataFlavors, the platform default encoding is assumed. See selectBestTextFlavor for a list of text flavors which support the charset parameter. param that the DataFlavor to compare with this return true if that is equivalent to this DataFlavor; false otherwise see #selectBestTextFlavor since 1.3 return equals(that);
protected java.lang.String	normalizeMimeType(java.lang.String mimeType) Called for each MIME type string to give DataFlavor subtypes the opportunity to change how the normalization of MIME types is accomplished. One possible use would be to add default parameter/value pairs in cases where none are present in the MIME type string passed in. This method is never invoked by this implementation from 1.1 onwards. deprecated return mimeType;
protected java.lang.String	normalizeMimeTypeParameter(java.lang.String parameterName, java.lang.String parameterValue) Called on DataFlavor for every MIME Type parameter to allow DataFlavor subclasses to handle special parameters like the text/plain charset parameters, whose values are case insensitive. (MIME type parameter values are supposed to be case sensitive. This method is called for each parameter name/value pair and should return the normalized representation of the parameterValue. This method is never invoked by this implementation from 1.1 onwards. deprecated return parameterValue;
private java.lang.String	paramString() String params = ""; params += "mimetype="; if (mimeType == null) { params += "null"; } else { params += mimeType.getBaseType(); } params += ";representationclass="; if (representationClass == null) { params += "null"; } else { params += representationClass.getName(); } if (DataTransferer.isFlavorCharsetTextType(this) && (isRepresentationClassInputStream() || isRepresentationClassByteBuffer() || DataTransferer.byteArrayClass.equals(representationClass))) { params += ";charset=" + DataTransferer.getTextCharset(this); } return params;
public synchronized void	readExternal(java.io.ObjectInput is) Restores this DataFlavor from a Serialized state. String rcn = null; mimeType = (MimeType)is.readObject(); if (mimeType != null) { humanPresentableName = mimeType.getParameter("humanPresentableName"); mimeType.removeParameter("humanPresentableName"); rcn = mimeType.getParameter("class"); if (rcn == null) { throw new IOException("no class parameter specified in: " + mimeType); } } try { representationClass = (Class)is.readObject(); } catch (OptionalDataException ode) { if (!ode.eof || ode.length != 0) { throw ode; } // Ensure backward compatibility. // Old versions didn't write the representation class to the stream. if (rcn != null) { representationClass = DataFlavor.tryToLoadClass(rcn, getClass().getClassLoader()); } }
public static final java.awt.datatransfer.DataFlavor	selectBestTextFlavor(java.awt.datatransfer.DataFlavor[] availableFlavors) Selects the best text DataFlavor from an array of DataFlavors. Only DataFlavor.stringFlavor, and equivalent flavors, and flavors that have a primary MIME type of "text", are considered for selection. Flavors are first sorted by their MIME types in the following order: "text/sgml" "text/xml" "text/html" "text/rtf" "text/enriched" "text/richtext" "text/uri-list" "text/tab-separated-values" "text/t140" "text/rfc822-headers" "text/parityfec" "text/directory" "text/css" "text/calendar" "application/x-java-serialized-object" "text/plain" "text/<other>" For example, "text/sgml" will be selected over "text/html", and DataFlavor.stringFlavor will be chosen over DataFlavor.plainTextFlavor. If two or more flavors share the best MIME type in the array, then that MIME type will be checked to see if it supports the charset parameter. The following MIME types support, or are treated as though they support, the charset parameter: "text/sgml" "text/xml" "text/html" "text/enriched" "text/richtext" "text/uri-list" "text/directory" "text/css" "text/calendar" "application/x-java-serialized-object" "text/plain" The following MIME types do not support, or are treated as though they do not support, the charset parameter: "text/rtf" "text/tab-separated-values" "text/t140" "text/rfc822-headers" "text/parityfec" For "text/<other>" MIME types, the first time the JRE needs to determine whether the MIME type supports the charset parameter, it will check whether the parameter is explicitly listed in an arbitrarily chosen DataFlavor which uses that MIME type. If so, the JRE will assume from that point on that the MIME type supports the charset parameter and will not check again. If the parameter is not explicitly listed, the JRE will assume from that point on that the MIME type does not support the charset parameter and will not check again. Because this check is performed on an arbitrarily chosen DataFlavor, developers must ensure that all DataFlavors with a "text/<other>" MIME type specify the charset parameter if it is supported by that MIME type. Developers should never rely on the JRE to substitute the platform's default charset for a "text/<other>" DataFlavor. Failure to adhere to this restriction will lead to undefined behavior. If the best MIME type in the array does not support the charset parameter, the flavors which share that MIME type will then be sorted by their representation classes in the following order: java.io.InputStream, java.nio.ByteBuffer, [B, <all others>. If two or more flavors share the best representation class, or if no flavor has one of the three specified representations, then one of those flavors will be chosen non-deterministically. If the best MIME type in the array does support the charset parameter, the flavors which share that MIME type will then be sorted by their representation classes in the following order: java.io.Reader, java.lang.String, java.nio.CharBuffer, [C, <all others>. If two or more flavors share the best representation class, and that representation is one of the four explicitly listed, then one of those flavors will be chosen non-deterministically. If, however, no flavor has one of the four specified representations, the flavors will then be sorted by their charsets. Unicode charsets, such as "UTF-16", "UTF-8", "UTF-16BE", "UTF-16LE", and their aliases, are considered best. After them, the platform default charset and its aliases are selected. "US-ASCII" and its aliases are worst. All other charsets are chosen in alphabetical order, but only charsets supported by this implementation of the Java platform will be considered. If two or more flavors share the best charset, the flavors will then again be sorted by their representation classes in the following order: java.io.InputStream, java.nio.ByteBuffer, [B, <all others>. If two or more flavors share the best representation class, or if no flavor has one of the three specified representations, then one of those flavors will be chosen non-deterministically. param availableFlavors an array of available DataFlavors return the best (highest fidelity) flavor according to the rules specified above, or null, if availableFlavors is null, has zero length, or contains no text flavors since 1.3 if (availableFlavors == null || availableFlavors.length == 0) { return null; } if (textFlavorComparator == null) { textFlavorComparator = new TextFlavorComparator(); } DataFlavor bestFlavor = (DataFlavor)Collections.max(Arrays.asList(availableFlavors), textFlavorComparator); if (!bestFlavor.isFlavorTextType()) { return null; } return bestFlavor;
public void	setHumanPresentableName(java.lang.String humanPresentableName) Sets the human presentable name for the data format that this DataFlavor represents. This name would be localized for different countries. param humanPresentableName the new human presentable name this.humanPresentableName = humanPresentableName;
public java.lang.String	toString() String representation of this DataFlavor and its parameters. The resulting String contains the name of the DataFlavor class, this flavor's MIME type, and its representation class. If this flavor has a primary MIME type of "text", supports the charset parameter, and has an encoded representation, the flavor's charset is also included. See selectBestTextFlavor for a list of text flavors which support the charset parameter. return string representation of this DataFlavor see #selectBestTextFlavor String string = getClass().getName(); string += "["+paramString()+"]"; return string;
protected static final java.lang.Class	tryToLoadClass(java.lang.String className, java.lang.ClassLoader fallback) Tries to load a class from: the bootstrap loader, the system loader, the context loader (if one is present) and finally the loader specified. param className the name of the class to be loaded param fallback the fallback loader return the class loaded exception ClassNotFoundException if class is not found ClassLoader systemClassLoader = (ClassLoader) java.security.AccessController.doPrivileged( new java.security.PrivilegedAction() { public Object run() { ClassLoader cl = Thread.currentThread(). getContextClassLoader(); return (cl != null) ? cl : ClassLoader.getSystemClassLoader(); } }); try { return Class.forName(className, true, systemClassLoader); } catch (ClassNotFoundException e2) { if (fallback != null) { return Class.forName(className, true, fallback); } else { throw new ClassNotFoundException(className); } }
public synchronized void	writeExternal(java.io.ObjectOutput os) Serializes this DataFlavor. if (mimeType != null) { mimeType.setParameter("humanPresentableName", humanPresentableName); os.writeObject(mimeType); mimeType.removeParameter("humanPresentableName"); } else { os.writeObject(null); } os.writeObject(representationClass);