Mercurial > projects > dwt2
comparison org.eclipse.core.databinding/src/org/eclipse/core/internal/databinding/conversion/StringToCharacterConverter.d @ 78:0a55d2d5a946
Added file for databinding
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Tue, 14 Apr 2009 11:35:29 +0200 |
| parents | |
| children | 6be48cf9f95c |
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| 76:f05e6e8b2f2d | 78:0a55d2d5a946 |
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| 1 /* | |
| 2 * Copyright cast(C) 2005 db4objects Inc. http://www.db4o.com | |
| 3 * | |
| 4 * All rights reserved. This program and the accompanying materials | |
| 5 * are made available under the terms of the Eclipse Public License v1.0 | |
| 6 * which accompanies this distribution, and is available at | |
| 7 * http://www.eclipse.org/legal/epl-v10.html | |
| 8 * | |
| 9 * Contributors: | |
| 10 * db4objects - Initial API and implementation | |
| 11 * Matt Carter - Improved primitive conversion support (bug 197679) | |
| 12 */ | |
| 13 module org.eclipse.core.internal.databinding.conversion.StringToCharacterConverter; | |
| 14 | |
| 15 import java.lang.all; | |
| 16 | |
| 17 import org.eclipse.core.databinding.conversion.IConverter; | |
| 18 | |
| 19 /** | |
| 20 * StringToCharacterConverter. | |
| 21 */ | |
| 22 public class StringToCharacterConverter : IConverter { | |
| 23 | |
| 24 private final bool primitiveTarget; | |
| 25 | |
| 26 /** | |
| 27 * | |
| 28 * @param primitiveTarget | |
| 29 */ | |
| 30 public this(bool primitiveTarget) { | |
| 31 this.primitiveTarget = primitiveTarget; | |
| 32 } | |
| 33 | |
| 34 /* | |
| 35 * (non-Javadoc) | |
| 36 * | |
| 37 * @see org.eclipse.jface.binding.converter.IConverter#convert(java.lang.Object) | |
| 38 */ | |
| 39 public Object convert(Object source) { | |
| 40 if (source !is null && !( null !is cast(String)source )) | |
| 41 throw new IllegalArgumentException( | |
| 42 "String2Character: Expected type String, got type [" + source.getClass().getName() + "]"); //$NON-NLS-1$ //$NON-NLS-2$ | |
| 43 | |
| 44 String s = cast(String) source; | |
| 45 if (source is null || s.equals("")) { //$NON-NLS-1$ | |
| 46 if (primitiveTarget) | |
| 47 throw new IllegalArgumentException( | |
| 48 "String2Character: cannot convert null/empty string to character primitive"); //$NON-NLS-1$ | |
| 49 return null; | |
| 50 } | |
| 51 Character result; | |
| 52 | |
| 53 if (s.length() > 1) | |
| 54 throw new IllegalArgumentException( | |
| 55 "String2Character: string too long: " + s); //$NON-NLS-1$ | |
| 56 | |
| 57 try { | |
| 58 result = new Character(s.charAt(0)); | |
| 59 } catch (Exception e) { | |
| 60 throw new IllegalArgumentException( | |
| 61 "String2Character: " + e.getMessage() + ": " + s); //$NON-NLS-1$ //$NON-NLS-2$ | |
| 62 } | |
| 63 | |
| 64 return result; | |
| 65 } | |
| 66 | |
| 67 public Object getFromType() { | |
| 68 return String.classinfo; | |
| 69 } | |
| 70 | |
| 71 public Object getToType() { | |
| 72 return primitiveTarget ? Character.TYPE : Character.classinfo; | |
| 73 } | |
| 74 | |
| 75 /** | |
| 76 * @param primitive | |
| 77 * @return converter | |
| 78 */ | |
| 79 public static StringToCharacterConverter toCharacter(bool primitive) { | |
| 80 return new StringToCharacterConverter(primitive); | |
| 81 } | |
| 82 | |
| 83 } |