diff org.eclipse.core.databinding/src/org/eclipse/core/databinding/UpdateStrategy.d @ 78:0a55d2d5a946

Added file for databinding
author Frank Benoit <benoit@tionex.de>
date Tue, 14 Apr 2009 11:35:29 +0200
parents
children 383ce7bd736b
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.core.databinding/src/org/eclipse/core/databinding/UpdateStrategy.d	Tue Apr 14 11:35:29 2009 +0200
@@ -0,0 +1,712 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2008 IBM Corporation and others.
+ * 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:
+ *     IBM Corporation - initial API and implementation
+ *     Matt Carter - Bug 180392
+ *                 - Character support completed (bug 197679)
+ *******************************************************************************/
+
+module org.eclipse.core.databinding.UpdateStrategy;
+
+import java.lang.all;
+
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.eclipse.core.databinding.conversion.IConverter;
+import org.eclipse.core.databinding.conversion.NumberToStringConverter;
+import org.eclipse.core.databinding.conversion.StringToNumberConverter;
+import org.eclipse.core.databinding.util.Policy;
+import org.eclipse.core.internal.databinding.ClassLookupSupport;
+import org.eclipse.core.internal.databinding.Pair;
+import org.eclipse.core.internal.databinding.conversion.CharacterToStringConverter;
+import org.eclipse.core.internal.databinding.conversion.IdentityConverter;
+import org.eclipse.core.internal.databinding.conversion.IntegerToStringConverter;
+import org.eclipse.core.internal.databinding.conversion.NumberToBigDecimalConverter;
+import org.eclipse.core.internal.databinding.conversion.NumberToBigIntegerConverter;
+import org.eclipse.core.internal.databinding.conversion.NumberToByteConverter;
+import org.eclipse.core.internal.databinding.conversion.NumberToDoubleConverter;
+import org.eclipse.core.internal.databinding.conversion.NumberToFloatConverter;
+import org.eclipse.core.internal.databinding.conversion.NumberToIntegerConverter;
+import org.eclipse.core.internal.databinding.conversion.NumberToLongConverter;
+import org.eclipse.core.internal.databinding.conversion.NumberToShortConverter;
+import org.eclipse.core.internal.databinding.conversion.ObjectToStringConverter;
+import org.eclipse.core.internal.databinding.conversion.StringToByteConverter;
+import org.eclipse.core.internal.databinding.conversion.StringToCharacterConverter;
+import org.eclipse.core.internal.databinding.conversion.StringToShortConverter;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+
+import com.ibm.icu.text.NumberFormat;
+
+/**
+ * @since 1.0
+ *
+ */
+/* package */class UpdateStrategy {
+
+    private static final String BOOLEAN_TYPE = "java.lang.Boolean.TYPE"; //$NON-NLS-1$
+
+    private static final String SHORT_TYPE = "java.lang.Short.TYPE"; //$NON-NLS-1$
+
+    private static final String BYTE_TYPE = "java.lang.Byte.TYPE"; //$NON-NLS-1$
+
+    private static final String DOUBLE_TYPE = "java.lang.Double.TYPE"; //$NON-NLS-1$
+
+    private static final String FLOAT_TYPE = "java.lang.Float.TYPE"; //$NON-NLS-1$
+
+    private static final String INTEGER_TYPE = "java.lang.Integer.TYPE"; //$NON-NLS-1$
+
+    private static final String LONG_TYPE = "java.lang.Long.TYPE"; //$NON-NLS-1$
+
+    private static final String CHARACTER_TYPE = "java.lang.Character.TYPE"; //$NON-NLS-1$
+
+    private static Map converterMap;
+
+    private static ClassInfo autoboxed(ClassInfo clazz) {
+        if (clazz is Float.TYPE)
+            return Float.classinfo;
+        else if (clazz is Double.TYPE)
+            return Double.classinfo;
+        else if (clazz is Short.TYPE)
+            return Short.classinfo;
+        else if (clazz is Integer.TYPE)
+            return Integer.classinfo;
+        else if (clazz is Long.TYPE)
+            return Long.classinfo;
+        else if (clazz is Byte.TYPE)
+            return Byte.classinfo;
+        else if (clazz is Boolean.TYPE)
+            return Boolean.classinfo;
+        else if (clazz is Character.TYPE)
+            return Character.classinfo;
+        return clazz;
+    }
+
+    final protected void checkAssignable(Object toType, Object fromType,
+            String errorString) {
+        Boolean assignableFromModelToModelConverter = isAssignableFromTo(
+                fromType, toType);
+        if (assignableFromModelToModelConverter !is null
+                && !assignableFromModelToModelConverter.booleanValue()) {
+            throw new BindingException(errorString
+                    + " Expected: " + fromType + ", actual: " + toType); //$NON-NLS-1$//$NON-NLS-2$
+        }
+    }
+
+    /**
+     * Tries to create a converter that can convert from values of type
+     * fromType. Returns <code>null</code> if no converter could be created.
+     * Either toType or modelDescription can be <code>null</code>, but not
+     * both.
+     *
+     * @param fromType
+     * @param toType
+     * @return an IConverter, or <code>null</code> if unsuccessful
+     */
+    protected IConverter createConverter(Object fromType, Object toType) {
+        if (!( null !is cast(ClassInfo)fromType ) || !( null !is cast(ClassInfo)toType )) {
+            return new DefaultConverter(fromType, toType);
+        }
+        ClassInfo toClass = cast(ClassInfo) toType;
+        ClassInfo originalToClass = toClass;
+        if (toClass.isPrimitive()) {
+            toClass = autoboxed(toClass);
+        }
+        ClassInfo fromClass = cast(ClassInfo) fromType;
+        ClassInfo originalFromClass = fromClass;
+        if (fromClass.isPrimitive()) {
+            fromClass = autoboxed(fromClass);
+        }
+        if (!(cast(ClassInfo) toType).isPrimitive()
+                && toClass.isAssignableFrom(fromClass)) {
+            return new IdentityConverter(originalFromClass, originalToClass);
+        }
+        if ((cast(ClassInfo) fromType).isPrimitive() && (cast(ClassInfo) toType).isPrimitive()
+                && fromType.equals(toType)) {
+            return new IdentityConverter(originalFromClass, originalToClass);
+        }
+        Map converterMap = getConverterMap();
+        ClassInfo[] supertypeHierarchyFlattened = ClassLookupSupport
+                .getTypeHierarchyFlattened(fromClass);
+        for (int i = 0; i < supertypeHierarchyFlattened.length; i++) {
+            ClassInfo currentFromClass = supertypeHierarchyFlattened[i];
+            if (currentFromClass is toType) {
+                // converting to toType is just a widening
+                return new IdentityConverter(fromClass, toClass);
+            }
+            Pair key = new Pair(getKeyForClass(fromType, currentFromClass),
+                    getKeyForClass(toType, toClass));
+            Object converterOrClassname = converterMap.get(key);
+            if ( null !is cast(IConverter)converterOrClassname ) {
+                return cast(IConverter) converterOrClassname;
+            } else if ( null !is cast(String)converterOrClassname ) {
+                String classname = cast(String) converterOrClassname;
+                ClassInfo converterClass;
+                try {
+                    converterClass = ClassInfo.forName(classname);
+                    IConverter result = cast(IConverter) converterClass
+                            .newInstance();
+                    converterMap.put(key, result);
+                    return result;
+                } catch (Exception e) {
+                    Policy
+                            .getLog()
+                            .log(
+                                    new Status(
+                                            IStatus.ERROR,
+                                            Policy.JFACE_DATABINDING,
+                                            0,
+                                            "Error while instantiating default converter", e)); //$NON-NLS-1$
+                }
+            }
+        }
+        // Since we found no converter yet, try a "downcast" converter;
+        // the IdentityConverter will automatically check the actual types at
+        // runtime.
+        if (fromClass.isAssignableFrom(toClass)) {
+            return new IdentityConverter(originalFromClass, originalToClass);
+        }
+        return new DefaultConverter(fromType, toType);
+    }
+
+    private synchronized static Map getConverterMap() {
+        // using string-based lookup avoids loading of too many classes
+        if (converterMap is null) {
+            // NumberFormat to be shared across converters for the formatting of
+            // integer values
+            NumberFormat integerFormat = NumberFormat.getIntegerInstance();
+            // NumberFormat to be shared across converters for formatting non
+            // integer values
+            NumberFormat numberFormat = NumberFormat.getNumberInstance();
+
+            converterMap = new HashMap();
+            // Standard and Boxed Types
+            converterMap
+                    .put(
+                            new Pair("java.util.Date", "java.lang.String"), "org.eclipse.core.internal.databinding.conversion.DateToStringConverter"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", "java.lang.Boolean"), "org.eclipse.core.internal.databinding.conversion.StringToBooleanConverter"); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", "java.lang.Byte"), StringToByteConverter.toByte(integerFormat, false)); //$NON-NLS-1$//$NON-NLS-2$
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", "java.util.Date"), "org.eclipse.core.internal.databinding.conversion.StringToDateConverter"); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", "java.lang.Short"), StringToShortConverter.toShort(integerFormat, false)); //$NON-NLS-1$//$NON-NLS-2$
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", "java.lang.Character"), StringToCharacterConverter.toCharacter(false)); //$NON-NLS-1$//$NON-NLS-2$
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", "java.lang.Integer"), StringToNumberConverter.toInteger(integerFormat, false)); //$NON-NLS-1$//$NON-NLS-2$
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", "java.lang.Double"), StringToNumberConverter.toDouble(numberFormat, false)); //$NON-NLS-1$//$NON-NLS-2$
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", "java.lang.Long"), StringToNumberConverter.toLong(integerFormat, false)); //$NON-NLS-1$//$NON-NLS-2$
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", "java.lang.Float"), StringToNumberConverter.toFloat(numberFormat, false)); //$NON-NLS-1$//$NON-NLS-2$
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", "java.math.BigInteger"), StringToNumberConverter.toBigInteger(integerFormat)); //$NON-NLS-1$//$NON-NLS-2$
+            converterMap
+                    .put(
+                            new Pair("java.lang.Integer", "java.lang.String"), NumberToStringConverter.fromInteger(integerFormat, false)); //$NON-NLS-1$//$NON-NLS-2$
+            converterMap
+                    .put(
+                            new Pair("java.lang.Long", "java.lang.String"), NumberToStringConverter.fromLong(integerFormat, false)); //$NON-NLS-1$//$NON-NLS-2$
+            converterMap
+                    .put(
+                            new Pair("java.lang.Double", "java.lang.String"), NumberToStringConverter.fromDouble(numberFormat, false)); //$NON-NLS-1$//$NON-NLS-2$
+            converterMap
+                    .put(
+                            new Pair("java.lang.Float", "java.lang.String"), NumberToStringConverter.fromFloat(numberFormat, false)); //$NON-NLS-1$//$NON-NLS-2$
+            converterMap
+                    .put(
+                            new Pair("java.math.BigInteger", "java.lang.String"), NumberToStringConverter.fromBigInteger(integerFormat)); //$NON-NLS-1$//$NON-NLS-2$
+            converterMap
+                    .put(
+                            new Pair("java.lang.Byte", "java.lang.String"), IntegerToStringConverter.fromByte(integerFormat, false)); //$NON-NLS-1$//$NON-NLS-2$
+            converterMap
+                    .put(
+                            new Pair("java.lang.Short", "java.lang.String"), IntegerToStringConverter.fromShort(integerFormat, false)); //$NON-NLS-1$//$NON-NLS-2$
+            converterMap
+                    .put(
+                            new Pair("java.lang.Character", "java.lang.String"), CharacterToStringConverter.fromCharacter(false)); //$NON-NLS-1$//$NON-NLS-2$
+
+            converterMap
+                    .put(
+                            new Pair("java.lang.Object", "java.lang.String"), "org.eclipse.core.internal.databinding.conversion.ObjectToStringConverter"); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$
+
+            // Integer.TYPE
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", INTEGER_TYPE), StringToNumberConverter.toInteger(integerFormat, true)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(INTEGER_TYPE, "java.lang.Integer"), new IdentityConverter(Integer.TYPE, Integer.classinfo)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(INTEGER_TYPE, "java.lang.Object"), new IdentityConverter(Integer.TYPE, Object.classinfo)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(INTEGER_TYPE, "java.lang.String"), NumberToStringConverter.fromInteger(integerFormat, true)); //$NON-NLS-1$
+
+            // Byte.TYPE
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", BYTE_TYPE), StringToByteConverter.toByte(integerFormat, true)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(BYTE_TYPE, "java.lang.Byte"), new IdentityConverter(Byte.TYPE, Byte.classinfo)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(BYTE_TYPE, "java.lang.String"), IntegerToStringConverter.fromByte(integerFormat, true)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(BYTE_TYPE, "java.lang.Object"), new IdentityConverter(Byte.TYPE, Object.classinfo)); //$NON-NLS-1$
+
+            // Double.TYPE
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", DOUBLE_TYPE), StringToNumberConverter.toDouble(numberFormat, true)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(DOUBLE_TYPE, "java.lang.String"), NumberToStringConverter.fromDouble(numberFormat, true)); //$NON-NLS-1$
+
+            converterMap
+                    .put(
+                            new Pair(DOUBLE_TYPE, "java.lang.Double"), new IdentityConverter(Double.TYPE, Double.classinfo)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(DOUBLE_TYPE, "java.lang.Object"), new IdentityConverter(Double.TYPE, Object.classinfo)); //$NON-NLS-1$
+
+            // Boolean.TYPE
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", BOOLEAN_TYPE), "org.eclipse.core.internal.databinding.conversion.StringToBooleanPrimitiveConverter"); //$NON-NLS-1$ //$NON-NLS-2$
+            converterMap
+                    .put(
+                            new Pair(BOOLEAN_TYPE, "java.lang.Boolean"), new IdentityConverter(Boolean.TYPE, Boolean.classinfo)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(BOOLEAN_TYPE, "java.lang.String"), new ObjectToStringConvertercast(Boolean.TYPE)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(BOOLEAN_TYPE, "java.lang.Object"), new IdentityConverter(Boolean.TYPE, Object.classinfo)); //$NON-NLS-1$
+
+            // Float.TYPE
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", FLOAT_TYPE), StringToNumberConverter.toFloat(numberFormat, true)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(FLOAT_TYPE, "java.lang.String"), NumberToStringConverter.fromFloat(numberFormat, true)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(FLOAT_TYPE, "java.lang.Float"), new IdentityConverter(Float.TYPE, Float.classinfo)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(FLOAT_TYPE, "java.lang.Object"), new IdentityConverter(Float.TYPE, Object.classinfo)); //$NON-NLS-1$
+
+            // Short.TYPE
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", SHORT_TYPE), StringToShortConverter.toShort(integerFormat, true)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(SHORT_TYPE, "java.lang.Short"), new IdentityConverter(Short.TYPE, Short.classinfo)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(SHORT_TYPE, "java.lang.String"), IntegerToStringConverter.fromShort(integerFormat, true)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(SHORT_TYPE, "java.lang.Object"), new IdentityConverter(Short.TYPE, Object.classinfo)); //$NON-NLS-1$
+
+            // Long.TYPE
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", LONG_TYPE), StringToNumberConverter.toLong(integerFormat, true)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(LONG_TYPE, "java.lang.String"), NumberToStringConverter.fromLong(integerFormat, true)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(LONG_TYPE, "java.lang.Long"), new IdentityConverter(Long.TYPE, Long.classinfo)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(LONG_TYPE, "java.lang.Object"), new IdentityConverter(Long.TYPE, Object.classinfo)); //$NON-NLS-1$
+
+            // Character.TYPE
+            converterMap
+                    .put(
+                            new Pair("java.lang.String", CHARACTER_TYPE), StringToCharacterConverter.toCharacter(true)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(CHARACTER_TYPE, "java.lang.Character"), new IdentityConverter(Character.TYPE, Character.classinfo)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(CHARACTER_TYPE, "java.lang.String"), CharacterToStringConverter.fromCharacter(true)); //$NON-NLS-1$
+            converterMap
+                    .put(
+                            new Pair(CHARACTER_TYPE, "java.lang.Object"), new IdentityConverter(Character.TYPE, Object.classinfo)); //$NON-NLS-1$
+
+            // Miscellaneous
+            converterMap
+                    .put(
+                            new Pair(
+                                    "org.eclipse.core.runtime.IStatus", "java.lang.String"), "org.eclipse.core.internal.databinding.conversion.StatusToStringConverter"); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$
+
+            addNumberToByteConverters(converterMap, integerFormat,
+                    integerClasses);
+            addNumberToByteConverters(converterMap, numberFormat, floatClasses);
+
+            addNumberToShortConverters(converterMap, integerFormat,
+                    integerClasses);
+            addNumberToShortConverters(converterMap, numberFormat, floatClasses);
+
+            addNumberToIntegerConverters(converterMap, integerFormat,
+                    integerClasses);
+            addNumberToIntegerConverters(converterMap, numberFormat,
+                    floatClasses);
+
+            addNumberToLongConverters(converterMap, integerFormat,
+                    integerClasses);
+            addNumberToLongConverters(converterMap, numberFormat, floatClasses);
+
+            addNumberToFloatConverters(converterMap, integerFormat,
+                    integerClasses);
+            addNumberToFloatConverters(converterMap, numberFormat, floatClasses);
+
+            addNumberToDoubleConverters(converterMap, integerFormat,
+                    integerClasses);
+            addNumberToDoubleConverters(converterMap, numberFormat,
+                    floatClasses);
+
+            addNumberToBigIntegerConverters(converterMap, integerFormat,
+                    integerClasses);
+            addNumberToBigIntegerConverters(converterMap, numberFormat,
+                    floatClasses);
+
+            addNumberToBigDecimalConverters(converterMap, integerFormat,
+                    integerClasses);
+            addNumberToBigDecimalConverters(converterMap, numberFormat,
+                    floatClasses);
+        }
+
+        return converterMap;
+    }
+
+    private static final ClassInfo[] integerClasses = new ClassInfo[] [ Byte.TYPE,
+            Byte.classinfo, Short.TYPE, Short.classinfo, Integer.TYPE, Integer.classinfo,
+            Long.TYPE, Long.classinfo, BigInteger.classinfo ];
+
+    private static final ClassInfo[] floatClasses = new ClassInfo[] [ Float.TYPE,
+            Float.classinfo, Double.TYPE, Double.classinfo, BigDecimal.classinfo ];
+
+    /**
+     * Registers converters to boxed and unboxed types from a list of from
+     * classes.
+     *
+     * @param map
+     * @param numberFormat
+     * @param fromTypes
+     */
+    private static void addNumberToByteConverters(Map map,
+            NumberFormat numberFormat, ClassInfo[] fromTypes) {
+
+        for (int i = 0; i < fromTypes.length; i++) {
+            ClassInfo fromType = fromTypes[i];
+            if (!fromType.equals(Byte.classinfo) && !fromType.equalscast(Byte.TYPE)) {
+                String fromName = (fromType.isPrimitive()) ? getKeyForClass(
+                        fromType, null) : fromType.getName();
+
+                map
+                        .put(new Pair(fromName, BYTE_TYPE),
+                                new NumberToByteConverter(numberFormat,
+                                        fromType, true));
+                map
+                        .put(new Pair(fromName, Byte.classinfo.getName()),
+                                new NumberToByteConverter(numberFormat,
+                                        fromType, false));
+            }
+        }
+    }
+
+    /**
+     * Registers converters to boxed and unboxed types from a list of from
+     * classes.
+     *
+     * @param map
+     * @param numberFormat
+     * @param fromTypes
+     */
+    private static void addNumberToShortConverters(Map map,
+            NumberFormat numberFormat, ClassInfo[] fromTypes) {
+        for (int i = 0; i < fromTypes.length; i++) {
+            ClassInfo fromType = fromTypes[i];
+            if (!fromType.equals(Short.classinfo) && !fromType.equalscast(Short.TYPE)) {
+                String fromName = (fromType.isPrimitive()) ? getKeyForClass(
+                        fromType, null) : fromType.getName();
+
+                map
+                        .put(new Pair(fromName, SHORT_TYPE),
+                                new NumberToShortConverter(numberFormat,
+                                        fromType, true));
+                map.put(new Pair(fromName, Short.classinfo.getName()),
+                        new NumberToShortConverter(numberFormat, fromType,
+                                false));
+            }
+        }
+    }
+
+    /**
+     * Registers converters to boxed and unboxed types from a list of from
+     * classes.
+     *
+     * @param map
+     * @param numberFormat
+     * @param fromTypes
+     */
+    private static void addNumberToIntegerConverters(Map map,
+            NumberFormat numberFormat, ClassInfo[] fromTypes) {
+        for (int i = 0; i < fromTypes.length; i++) {
+            ClassInfo fromType = fromTypes[i];
+            if (!fromType.equals(Integer.classinfo)
+                    && !fromType.equalscast(Integer.TYPE)) {
+                String fromName = (fromType.isPrimitive()) ? getKeyForClass(
+                        fromType, null) : fromType.getName();
+
+                map.put(new Pair(fromName, INTEGER_TYPE),
+                        new NumberToIntegerConverter(numberFormat, fromType,
+                                true));
+                map.put(new Pair(fromName, Integer.classinfo.getName()),
+                        new NumberToIntegerConverter(numberFormat, fromType,
+                                false));
+            }
+        }
+    }
+
+    /**
+     * Registers converters to boxed and unboxed types from a list of from
+     * classes.
+     *
+     * @param map
+     * @param numberFormat
+     * @param fromTypes
+     */
+    private static void addNumberToLongConverters(Map map,
+            NumberFormat numberFormat, ClassInfo[] fromTypes) {
+        for (int i = 0; i < fromTypes.length; i++) {
+            ClassInfo fromType = fromTypes[i];
+            if (!fromType.equals(Long.classinfo) && !fromType.equalscast(Long.TYPE)) {
+                String fromName = (fromType.isPrimitive()) ? getKeyForClass(
+                        fromType, null) : fromType.getName();
+
+                map
+                        .put(new Pair(fromName, LONG_TYPE),
+                                new NumberToLongConverter(numberFormat,
+                                        fromType, true));
+                map
+                        .put(new Pair(fromName, Long.classinfo.getName()),
+                                new NumberToLongConverter(numberFormat,
+                                        fromType, false));
+            }
+        }
+    }
+
+    /**
+     * Registers converters to boxed and unboxed types from a list of from
+     * classes.
+     *
+     * @param map
+     * @param numberFormat
+     * @param fromTypes
+     */
+    private static void addNumberToFloatConverters(Map map,
+            NumberFormat numberFormat, ClassInfo[] fromTypes) {
+        for (int i = 0; i < fromTypes.length; i++) {
+            ClassInfo fromType = fromTypes[i];
+            if (!fromType.equals(Float.classinfo) && !fromType.equalscast(Float.TYPE)) {
+                String fromName = (fromType.isPrimitive()) ? getKeyForClass(
+                        fromType, null) : fromType.getName();
+
+                map
+                        .put(new Pair(fromName, FLOAT_TYPE),
+                                new NumberToFloatConverter(numberFormat,
+                                        fromType, true));
+                map.put(new Pair(fromName, Float.classinfo.getName()),
+                        new NumberToFloatConverter(numberFormat, fromType,
+                                false));
+            }
+        }
+    }
+
+    /**
+     * Registers converters to boxed and unboxed types from a list of from
+     * classes.
+     *
+     * @param map
+     * @param numberFormat
+     * @param fromTypes
+     */
+    private static void addNumberToDoubleConverters(Map map,
+            NumberFormat numberFormat, ClassInfo[] fromTypes) {
+        for (int i = 0; i < fromTypes.length; i++) {
+            ClassInfo fromType = fromTypes[i];
+            if (!fromType.equals(Double.classinfo) && !fromType.equalscast(Double.TYPE)) {
+                String fromName = (fromType.isPrimitive()) ? getKeyForClass(
+                        fromType, null) : fromType.getName();
+
+                map.put(new Pair(fromName, DOUBLE_TYPE),
+                        new NumberToDoubleConverter(numberFormat, fromType,
+                                true));
+                map.put(new Pair(fromName, Double.classinfo.getName()),
+                        new NumberToDoubleConverter(numberFormat, fromType,
+                                false));
+            }
+        }
+    }
+
+    /**
+     * Registers converters to boxed and unboxed types from a list of from
+     * classes.
+     *
+     * @param map
+     * @param numberFormat
+     * @param fromTypes
+     */
+    private static void addNumberToBigIntegerConverters(Map map,
+            NumberFormat numberFormat, ClassInfo[] fromTypes) {
+        for (int i = 0; i < fromTypes.length; i++) {
+            ClassInfo fromType = fromTypes[i];
+            if (!fromType.equals(BigInteger.classinfo)) {
+                String fromName = (fromType.isPrimitive()) ? getKeyForClass(
+                        fromType, null) : fromType.getName();
+
+                map
+                        .put(new Pair(fromName, BigInteger.classinfo.getName()),
+                                new NumberToBigIntegerConverter(numberFormat,
+                                        fromType));
+            }
+        }
+    }
+
+    /**
+     * Registers converters to boxed and unboxed types from a list of from
+     * classes.
+     *
+     * @param map
+     * @param numberFormat
+     * @param fromTypes
+     */
+    private static void addNumberToBigDecimalConverters(Map map,
+            NumberFormat numberFormat, ClassInfo[] fromTypes) {
+        for (int i = 0; i < fromTypes.length; i++) {
+            ClassInfo fromType = fromTypes[i];
+            if (!fromType.equals(BigDecimal.classinfo)) {
+                String fromName = (fromType.isPrimitive()) ? getKeyForClass(
+                        fromType, null) : fromType.getName();
+
+                map
+                        .put(new Pair(fromName, BigDecimal.classinfo.getName()),
+                                new NumberToBigDecimalConverter(numberFormat,
+                                        fromType));
+            }
+        }
+    }
+
+    private static String getKeyForClass(Object originalValue,
+            ClassInfo filteredValue) {
+        if ( null !is cast(ClassInfo)originalValue ) {
+            ClassInfo originalClass = cast(ClassInfo) originalValue;
+            if (originalClass.equalscast(Integer.TYPE)) {
+                return INTEGER_TYPE;
+            } else if (originalClass.equalscast(Byte.TYPE)) {
+                return BYTE_TYPE;
+            } else if (originalClass.equalscast(Boolean.TYPE)) {
+                return BOOLEAN_TYPE;
+            } else if (originalClass.equalscast(Double.TYPE)) {
+                return DOUBLE_TYPE;
+            } else if (originalClass.equalscast(Float.TYPE)) {
+                return FLOAT_TYPE;
+            } else if (originalClass.equalscast(Long.TYPE)) {
+                return LONG_TYPE;
+            } else if (originalClass.equalscast(Short.TYPE)) {
+                return SHORT_TYPE;
+            }
+        }
+        return filteredValue.getName();
+    }
+
+    /**
+     * Returns {@link Boolean#TRUE} if the from type is assignable to the to
+     * type, or {@link Boolean#FALSE} if it not, or <code>null</code> if
+     * unknown.
+     * 
+     * @param fromType
+     * @param toType
+     * @return whether fromType is assignable to toType, or <code>null</code>
+     *         if unknown
+     */
+    protected Boolean isAssignableFromTo(Object fromType, Object toType) {
+        if ( null !is cast(ClassInfo )fromType && null !is cast(ClassInfo)toType ) {
+            ClassInfo toClass = cast(ClassInfo) toType;
+            if (toClass.isPrimitive()) {
+                toClass = autoboxed(toClass);
+            }
+            ClassInfo fromClass = cast(ClassInfo) fromType;
+            if (fromClass.isPrimitive()) {
+                fromClass = autoboxed(fromClass);
+            }
+            return toClass.isAssignableFrom(fromClass) ? Boolean.TRUE
+                    : Boolean.FALSE;
+        }
+        return null;
+    }
+
+    /*
+     * Default converter implementation, does not perform any conversion.
+     */
+    protected static final class DefaultConverter : IConverter {
+
+        private final Object toType;
+
+        private final Object fromType;
+
+        /**
+         * @param fromType
+         * @param toType
+         */
+        this(Object fromType, Object toType) {
+            this.toType = toType;
+            this.fromType = fromType;
+        }
+
+        public Object convert(Object fromObject) {
+            return fromObject;
+        }
+
+        public Object getFromType() {
+            return fromType;
+        }
+
+        public Object getToType() {
+            return toType;
+        }
+    }
+
+}