Mercurial > projects > dwt2
annotate org.eclipse.core.databinding/src/org/eclipse/core/internal/databinding/validation/NumberToNumberValidator.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 (c) 2007 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 ******************************************************************************/ | |
| 11 | |
| 12 module org.eclipse.core.internal.databinding.validation.NumberToNumberValidator; | |
| 13 | |
| 14 import java.lang.all; | |
| 15 | |
| 16 import org.eclipse.core.databinding.validation.IValidator; | |
| 17 import org.eclipse.core.databinding.validation.ValidationStatus; | |
| 18 import org.eclipse.core.internal.databinding.conversion.NumberToNumberConverter; | |
| 19 import org.eclipse.core.internal.databinding.conversion.StringToNumberParser; | |
| 20 import org.eclipse.core.runtime.IStatus; | |
| 21 import org.eclipse.core.runtime.Status; | |
| 22 | |
| 23 /** | |
| 24 * Base class for validators that validate if a Number can fit in another Number type. | |
| 25 * <p> | |
| 26 * Class is thread safe. | |
| 27 * </p> | |
| 28 * | |
| 29 * @since 1.0 | |
| 30 */ | |
| 31 public abstract class NumberToNumberValidator : IValidator { | |
| 32 private final NumberToNumberConverter converter; | |
| 33 | |
| 34 private final Number min; | |
| 35 | |
| 36 private final Number max; | |
| 37 | |
| 38 private String outOfRangeMessage; | |
| 39 | |
| 40 private final bool primitive; | |
| 41 | |
| 42 /** | |
| 43 * @param converter | |
| 44 * @param min | |
| 45 * can be <code>null</code> | |
| 46 * @param max | |
| 47 * can be <code>null</code> | |
| 48 */ | |
| 49 protected this(NumberToNumberConverter converter, | |
| 50 Number min, Number max) { | |
| 51 this.converter = converter; | |
| 52 this.min = min; | |
| 53 this.max = max; | |
| 54 | |
|
88
9e0ab372d5d8
Revert from TypeInfo/ClassInfo to java.lang.Class
Frank Benoit <benoit@tionex.de>
parents:
85
diff
changeset
|
55 primitive = (cast(Class)converter.getToType()).isPrimitive(); |
| 78 | 56 } |
| 57 | |
| 58 /* | |
| 59 * (non-Javadoc) | |
| 60 * | |
| 61 * @see org.eclipse.core.databinding.validation.IValidator#validate(java.lang.Object) | |
| 62 */ | |
| 63 public final IStatus validate(Object value) { | |
| 64 if (value is null) { | |
| 65 if (primitive) { | |
| 66 throw new IllegalArgumentException( | |
| 67 "Parameter 'value' cannot be null."); //$NON-NLS-1$ | |
| 68 } | |
| 69 | |
| 70 return Status.OK_STATUS; | |
| 71 } | |
| 72 | |
| 73 if (!( null !is cast(Number)value )) { | |
| 74 throw new IllegalArgumentException( | |
| 75 "Parameter 'value' is not of type Number."); //$NON-NLS-1$ | |
| 76 } | |
| 77 | |
| 78 Number number = cast(Number) value; | |
| 79 if (inRange(number)) { | |
| 80 return Status.OK_STATUS; | |
| 81 } | |
| 82 | |
| 83 synchronized (this) { | |
| 84 if (outOfRangeMessage is null && min !is null && max !is null) { | |
| 85 outOfRangeMessage = StringToNumberParser | |
| 86 .createOutOfRangeMessage(min, max, converter | |
| 87 .getNumberFormat()); | |
| 88 } | |
| 89 | |
| 90 return ValidationStatus.error(outOfRangeMessage); | |
| 91 } | |
| 92 } | |
| 93 | |
| 94 /** | |
| 95 * Invoked to determine if the value is in range. | |
| 96 * | |
| 97 * @param number | |
| 98 * @return <code>true</code> if in range | |
| 99 */ | |
| 100 protected abstract bool inRange(Number number); | |
| 101 } |