* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
- *
+ �*
* Contributors:
* IBM Corporation - Initial API and implementation
**********************************************************************/
import org.eclipse.ui.IElementFactory;
import org.eclipse.ui.IPersistableElement;
+
/**
- * Interface to a memento used for saving the important state of an object
- * in a form that can be persisted in the file system.
+ * Interface to a memento used for saving the important state of an object in a
+ * form that can be persisted in the file system.
* <p>
* Mementos were designed with the following requirements in mind:
* <ol>
- * <li>Certain objects need to be saved and restored across platform sessions.
- * </li>
- * <li>When an object is restored, an appropriate class for an object might not
- * be available. It must be possible to skip an object in this case.</li>
- * <li>When an object is restored, the appropriate class for the object may be
- * different from the one when the object was originally saved. If so, the
- * new class should still be able to read the old form of the data.</li>
+ * <li>Certain objects need to be saved and restored across platform sessions.
+ * </li>
+ * <li>When an object is restored, an appropriate class for an object might not
+ * be available. It must be possible to skip an object in this case.</li>
+ * <li>When an object is restored, the appropriate class for the object may be
+ * different from the one when the object was originally saved. If so, the new
+ * class should still be able to read the old form of the data.</li>
* </ol>
* </p>
* <p>
- * Mementos meet these requirements by providing support for storing a
- * mapping of arbitrary string keys to primitive values, and by allowing
- * mementos to have other mementos as children (arranged into a tree).
- * A robust external storage format based on XML is used.
- * </p><p>
- * The key for an attribute may be any alpha numeric value. However, the
- * value of <code>TAG_ID</code> is reserved for internal use.
- * </p><p>
+ * Mementos meet these requirements by providing support for storing a mapping
+ * of arbitrary string keys to primitive values, and by allowing mementos to
+ * have other mementos as children (arranged into a tree). A robust external
+ * storage format based on XML is used.
+ * </p>
+ * <p>
+ * The key for an attribute may be any alpha numeric value. However, the value
+ * of <code>TAG_ID</code> is reserved for internal use.
+ * </p>
+ * <p>
* This interface is not intended to be implemented by clients.
* </p>
- *
+ *
* @see IPersistableElement
* @see IElementFactory
*/
public interface IMemento {
/**
- * Special reserved key used to store the memento id
- * (value <code>"org.eclipse.ui.id"</code>).
- *
+ * Special reserved key used to store the memento id (value
+ * <code>"org.eclipse.ui.id"</code>).
+ *
* @see #getId
*/
public static final String TAG_ID = "IMemento.internal.id"; //$NON-NLS-1$
/**
* Creates a new child of this memento with the given fType.
* <p>
- * The <code>getChild</code> and <code>getChildren</code> methods
- * are used to retrieve children of a given fType.
+ * The <code>getChild</code> and <code>getChildren</code> methods are
+ * used to retrieve children of a given fType.
* </p>
- *
- * @param fType the fType
+ *
+ * @param fType
+ * the fType
* @return a new child memento
* @see #getChild
* @see #getChildren
public IMemento createChild(String type);
/**
- * Creates a new child of this memento with the given fType and id.
- * The id is stored in the child memento (using a special reserved
- * key, <code>TAG_ID</code>) and can be retrieved using <code>getId</code>.
+ * Creates a new child of this memento with the given fType and id. The id
+ * is stored in the child memento (using a special reserved key,
+ * <code>TAG_ID</code>) and can be retrieved using <code>getId</code>.
* <p>
- * The <code>getChild</code> and <code>getChildren</code> methods
- * are used to retrieve children of a given fType.
+ * The <code>getChild</code> and <code>getChildren</code> methods are
+ * used to retrieve children of a given fType.
* </p>
- *
- * @param fType the fType
- * @param id the child id
+ *
+ * @param fType
+ * the fType
+ * @param id
+ * the child id
* @return a new child memento with the given fType and id
* @see #getId
*/
/**
* Returns the first child with the given fType id.
- *
- * @param fType the fType id
+ *
+ * @param fType
+ * the fType id
* @return the first child with the given fType
*/
public IMemento getChild(String type);
/**
* Returns all children with the given fType id.
- *
- * @param fType the fType id
+ *
+ * @param fType
+ * the fType id
* @return the list of children with the given fType
*/
public IMemento[] getChildren(String type);
/**
* Returns the floating point value of the given key.
- *
- * @param key the key
- * @return the value, or <code>null</code> if the key was not found or was found
- * but was not a floating point number
+ *
+ * @param key
+ * the key
+ * @return the value, or <code>null</code> if the key was not found or was
+ * found but was not a floating point number
*/
public Float getFloat(String key);
/**
* Returns the id for this memento.
- *
+ *
* @return the memento id, or <code>null</code> if none
* @see #createChild(java.lang.String,java.lang.String)
*/
/**
* Returns the name for this memento.
- *
+ *
* @return the memento name, or <code>null</code> if none
* @see #createChild(java.lang.String,java.lang.String)
*/
/**
* Returns the integer value of the given key.
- *
- * @param key the key
- * @return the value, or <code>null</code> if the key was not found or was found
- * but was not an integer
+ *
+ * @param key
+ * the key
+ * @return the value, or <code>null</code> if the key was not found or was
+ * found but was not an integer
*/
public Integer getInteger(String key);
/**
* Returns the string value of the given key.
- *
- * @param key the key
- * @return the value, or <code>null</code> if the key was not found or was found
- * but was not an integer
+ *
+ * @param key
+ * the key
+ * @return the value, or <code>null</code> if the key was not found or was
+ * found but was not an integer
*/
public String getString(String key);
/**
* Returns the boolean value of the given key.
- *
- * @param key the key
- * @return the value, or <code>null</code> if the key was not found or was found
- * but was not a boolean
+ *
+ * @param key
+ * the key
+ * @return the value, or <code>null</code> if the key was not found or was
+ * found but was not a boolean
*/
public Boolean getBoolean(String key);
/**
* Sets the value of the given key to the given floating point number.
- *
- * @param key the key
- * @param value the value
+ *
+ * @param key
+ * the key
+ * @param value
+ * the value
*/
public void putFloat(String key, float value);
/**
* Sets the value of the given key to the given integer.
- *
- * @param key the key
- * @param value the value
+ *
+ * @param key
+ * the key
+ * @param value
+ * the value
*/
public void putInteger(String key, int value);
/**
* Sets the value of the given key to the given boolean value.
- *
- * @param key the key
- * @param value the value
+ *
+ * @param key
+ * the key
+ * @param value
+ * the value
*/
public void putBoolean(String key, boolean value);
/**
- * Copy the attributes and children from <code>memento</code>
- * to the receiver.
- *
- * @param memento the IMemento to be copied.
+ * Copy the attributes and children from <code>memento</code> to the
+ * receiver.
+ *
+ * @param memento
+ * the IMemento to be copied.
*/
public void putMemento(IMemento memento);
/**
* Sets the value of the given key to the given string.
- *
- * @param key the key
- * @param value the value
+ *
+ * @param key
+ * the key
+ * @param value
+ * the value
*/
public void putString(String key, String value);
}
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