diff options
Diffstat (limited to 'common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/factory/ClosureFactory.java')
-rw-r--r-- | common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/factory/ClosureFactory.java | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/factory/ClosureFactory.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/factory/ClosureFactory.java new file mode 100644 index 0000000000..d4491e222e --- /dev/null +++ b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/factory/ClosureFactory.java @@ -0,0 +1,50 @@ +/******************************************************************************* + * Copyright (c) 2013 Oracle. All rights reserved. + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0, which accompanies this distribution + * and is available at http://www.eclipse.org/legal/epl-v10.html. + * + * Contributors: + * Oracle - initial API and implementation + ******************************************************************************/ +package org.eclipse.jpt.common.utility.internal.factory; + +import org.eclipse.jpt.common.utility.closure.Closure; +import org.eclipse.jpt.common.utility.factory.Factory; +import org.eclipse.jpt.common.utility.internal.ObjectTools; + +/** + * Adapt a {@link Closure} to the {@link Factory} interface. + * The closure is passed <code>null</code> for an argument and the factory + * always returns <code>null</code>. + * This really only useful for a closure that accepts a + * <code>null</code> argument. + * + * @param <T> the type of the object returned by the factory + * + * @see org.eclipse.jpt.common.utility.internal.closure.FactoryClosure + */ +public class ClosureFactory<T> + implements Factory<T> +{ + private final Closure<?> closure; + + + public ClosureFactory(Closure<?> closure) { + super(); + if (closure == null) { + throw new NullPointerException(); + } + this.closure = closure; + } + + public T create() { + this.closure.execute(null); + return null; + } + + @Override + public String toString() { + return ObjectTools.toString(this, this.closure); + } +} |