jpa/plugins/org.eclipse.jpt.gen/src/org/eclipse/jpt/gen/internal2/OverwriteConfirmer.java

package org.eclipse.jpt.gen.internal2;

public interface OverwriteConfirmer {
	/**
	 * Return whether the entity generator should overwrite the specified
	 * file.
	 */
	boolean overwrite(String className);


	final class Always implements OverwriteConfirmer {
		public static final OverwriteConfirmer INSTANCE = new Always();
		public static OverwriteConfirmer instance() {
			return INSTANCE;
		}
		// ensure single instance
		private Always() {
			super();
		}
		// everything will be overwritten
		public boolean overwrite(String arg0) {
			return true;
		}
		@Override
		public String toString() {
			return "OverwriteConfirmer.Always";  //$NON-NLS-1$
		}
	}


	final class Never implements OverwriteConfirmer {
		public static final OverwriteConfirmer INSTANCE = new Never();
		public static OverwriteConfirmer instance() {
			return INSTANCE;
		}
		// ensure single instance
		private Never() {
			super();
		}
		// nothing will be overwritten
		public boolean overwrite(String arg0) {
			return false;
		}
		@Override
		public String toString() {
			return "OverwriteConfirmer.Never";  //$NON-NLS-1$
		}
	}

}