Mercurial > projects > dwt2
annotate org.eclipse.core.databinding/src/org/eclipse/core/internal/databinding/conversion/IdentityConverter.d @ 88:9e0ab372d5d8
Revert from TypeInfo/ClassInfo to java.lang.Class
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 19 Apr 2009 11:10:09 +0200 |
| parents | 6be48cf9f95c |
| children |
| rev | line source |
|---|---|
| 78 | 1 /* |
| 2 * Copyright cast(C) 2005 db4objects Inc. http://www.db4o.com and others. | |
| 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 - Character support completed (bug 197679) | |
| 12 */ | |
| 13 module org.eclipse.core.internal.databinding.conversion.IdentityConverter; | |
| 14 | |
| 15 import java.lang.all; | |
| 16 | |
| 17 import org.eclipse.core.databinding.BindingException; | |
| 18 import org.eclipse.core.databinding.conversion.IConverter; | |
| 19 | |
| 20 /** | |
| 21 * TheIdentityConverter. Returns the source value (the identity function). | |
| 22 */ | |
| 23 public class IdentityConverter : IConverter { | |
| 24 | |
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Revert from TypeInfo/ClassInfo to java.lang.Class
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parents:
85
diff
changeset
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25 private Class fromType; |
| 78 | 26 |
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Revert from TypeInfo/ClassInfo to java.lang.Class
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parents:
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diff
changeset
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27 private Class toType; |
| 78 | 28 |
| 29 /** | |
| 30 * @param type | |
| 31 */ | |
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Revert from TypeInfo/ClassInfo to java.lang.Class
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parents:
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diff
changeset
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32 public this(Class type) { |
| 78 | 33 this.fromType = type; |
| 34 this.toType = type; | |
| 85 | 35 initPrimitiveMap(); |
| 78 | 36 } |
| 37 | |
| 38 /** | |
| 39 * @param fromType | |
| 40 * @param toType | |
| 41 */ | |
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9e0ab372d5d8
Revert from TypeInfo/ClassInfo to java.lang.Class
Frank Benoit <benoit@tionex.de>
parents:
85
diff
changeset
|
42 public this(Class fromType, Class toType) { |
| 78 | 43 this.fromType = fromType; |
| 44 this.toType = toType; | |
| 85 | 45 initPrimitiveMap(); |
| 78 | 46 } |
| 47 | |
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Revert from TypeInfo/ClassInfo to java.lang.Class
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parents:
85
diff
changeset
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48 private Class[][] primitiveMap; |
| 85 | 49 |
| 50 private void initPrimitiveMap(){ | |
| 51 primitiveMap = [ | |
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Revert from TypeInfo/ClassInfo to java.lang.Class
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parents:
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diff
changeset
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52 [ cast(Class)Integer.TYPE, Class.fromType!(Integer) ], [ cast(Class)Short.TYPE, Class.fromType!(Short) ], |
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9e0ab372d5d8
Revert from TypeInfo/ClassInfo to java.lang.Class
Frank Benoit <benoit@tionex.de>
parents:
85
diff
changeset
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53 [ cast(Class)Long.TYPE, Class.fromType!(Long) ], [ cast(Class)Double.TYPE, Class.fromType!(Double) ], |
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9e0ab372d5d8
Revert from TypeInfo/ClassInfo to java.lang.Class
Frank Benoit <benoit@tionex.de>
parents:
85
diff
changeset
|
54 [ cast(Class)Byte.TYPE, Class.fromType!(Byte) ], [ cast(Class)Float.TYPE, Class.fromType!(Float) ], |
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9e0ab372d5d8
Revert from TypeInfo/ClassInfo to java.lang.Class
Frank Benoit <benoit@tionex.de>
parents:
85
diff
changeset
|
55 [ cast(Class)Boolean.TYPE, Class.fromType!(Boolean) ], |
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9e0ab372d5d8
Revert from TypeInfo/ClassInfo to java.lang.Class
Frank Benoit <benoit@tionex.de>
parents:
85
diff
changeset
|
56 [ cast(Class)Character.TYPE, Class.fromType!(Character) ] ]; |
| 85 | 57 } |
| 78 | 58 |
| 59 /* | |
| 60 * (non-Javadoc) | |
| 61 * | |
| 62 * @see org.eclipse.jface.binding.converter.IConverter#convert(java.lang.Object) | |
| 63 */ | |
| 64 public Object convert(Object source) { | |
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Revert from TypeInfo/ClassInfo to java.lang.Class
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parents:
85
diff
changeset
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65 if ( toType.isPrimitive()) { |
| 78 | 66 if (source is null) { |
| 67 throw new BindingException("Cannot convert null to a primitive"); //$NON-NLS-1$ | |
| 68 } | |
| 69 } | |
| 70 if (source !is null) { | |
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parents:
85
diff
changeset
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71 Class sourceClass = Class.fromObject(source); |
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parents:
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diff
changeset
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72 if (toType.isPrimitive() || sourceClass.isPrimitive()) { |
| 85 | 73 if (sourceClass.opEquals(toType) |
| 78 | 74 || isPrimitiveTypeMatchedWithBoxed(sourceClass, toType)) { |
| 75 return source; | |
| 76 } | |
| 77 throw new BindingException( | |
| 78 "Boxed and unboxed types do not match"); //$NON-NLS-1$ | |
| 79 } | |
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Revert from TypeInfo/ClassInfo to java.lang.Class
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parents:
85
diff
changeset
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80 if (!toType.isAssignableFrom(sourceClass)) { |
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9e0ab372d5d8
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parents:
85
diff
changeset
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81 throw new BindingException(Class.fromObject(sourceClass).getName() |
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9e0ab372d5d8
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parents:
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diff
changeset
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82 ~ " is not assignable to " ~ Class.fromObject(toType).getName()); //$NON-NLS-1$ |
| 78 | 83 } |
| 84 } | |
| 85 return source; | |
| 86 } | |
| 87 | |
| 88 /** | |
| 89 * (Non-API) isPrimitiveTypeMatchedWithBoxed. | |
| 90 * | |
| 91 * @param sourceClass | |
| 92 * @param toClass | |
| 93 * @return true if sourceClass and toType are matched primitive/boxed types | |
| 94 */ | |
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9e0ab372d5d8
Revert from TypeInfo/ClassInfo to java.lang.Class
Frank Benoit <benoit@tionex.de>
parents:
85
diff
changeset
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95 public bool isPrimitiveTypeMatchedWithBoxed(Class sourceClass, |
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9e0ab372d5d8
Revert from TypeInfo/ClassInfo to java.lang.Class
Frank Benoit <benoit@tionex.de>
parents:
85
diff
changeset
|
96 Class toClass) { |
| 78 | 97 for (int i = 0; i < primitiveMap.length; i++) { |
| 85 | 98 if (toClass.opEquals(primitiveMap[i][0]) |
| 99 && sourceClass.opEquals(primitiveMap[i][1])) { | |
| 78 | 100 return true; |
| 101 } | |
| 85 | 102 if (sourceClass.opEquals(primitiveMap[i][0]) |
| 103 && toClass.opEquals(primitiveMap[i][1])) { | |
| 78 | 104 return true; |
| 105 } | |
| 106 } | |
| 107 return false; | |
| 108 } | |
| 109 | |
| 110 public Object getFromType() { | |
| 111 return fromType; | |
| 112 } | |
| 113 | |
| 114 public Object getToType() { | |
| 115 return toType; | |
| 116 } | |
| 117 | |
| 118 } |