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core/src/main/java/io/github/mmm/property/factory/PropertyTypeInfo.java
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| @@ -1,109 +1,110 @@ | ||
| package io.github.mmm.property.factory; | ||
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| import java.lang.reflect.Type; | ||
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| import io.github.mmm.property.WritableProperty; | ||
| import io.github.mmm.property.object.WritableSimpleProperty; | ||
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| /** | ||
| * Interface with the type information required for generic {@link WritableProperty property} | ||
| * {@link PropertyFactory#create(String, PropertyTypeInfo, io.github.mmm.property.PropertyMetadata) creation}. | ||
| * | ||
| * @param <V> type of {@link #getValueClass()}. | ||
| */ | ||
| public interface PropertyTypeInfo<V> { | ||
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| /** | ||
| * @return the {@link Class} reflecting the {@link WritableProperty property} {@link WritableProperty#get() value}. | ||
| */ | ||
| Class<V> getValueClass(); | ||
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| /** | ||
| * @return the optional {@link io.github.mmm.property.container.ContainerProperty#getValueProperty() value property} | ||
| * or {@code null}. | ||
| */ | ||
| default WritableProperty<?> getValueProperty() { | ||
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| return null; | ||
| } | ||
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| /** | ||
| * @return the optional {@link io.github.mmm.property.container.map.MapProperty#getKeyProperty() key property} or | ||
| * {@code null}. | ||
| */ | ||
| default WritableSimpleProperty<?> getKeyProperty() { | ||
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| return null; | ||
| } | ||
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| /** | ||
| * @param i the index position of the requested type parameters. Use {@code 0} for the first parameter. | ||
| * @return the type parameter at the given {@code index}. Will be {@code null} if not available. If | ||
| * {@link #getValueClass()} returns {@code null} this will be the type parameters of the property type and | ||
| * otherwise of the value type. This method is provided for custom property developers who need generic | ||
| * information in they {@link io.github.mmm.property.factory.PropertyFactory} implementation. In order to draw | ||
| * the correct conclusions, also consider {@link #isValueNotProperty()}. | ||
| */ | ||
| default Type getTypeArgument(int i) { | ||
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| return null; | ||
| } | ||
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| /** | ||
| * @param i the index position of the requested type parameters. Use {@code 0} for the first parameter. | ||
| * @return the type parameter at the given {@code index}. Will be {@code null} if not available. If | ||
| * {@link #getValueClass()} returns {@code null} this will be the type parameters of the property type and | ||
| * otherwise of the value type. This method is provided for custom property developers who need generic | ||
| * information in they {@link io.github.mmm.property.factory.PropertyFactory} implementation. In order to draw | ||
| * the correct conclusions, also consider {@link #isValueNotProperty()}. | ||
| */ | ||
| default Class<?> getTypeArgumentClass(int i) { | ||
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| return null; | ||
| } | ||
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| /** | ||
| * @return {@code true} if the {@link #getOwnerType() owner} is the {@link WritableProperty#get() property value} (see | ||
| * {@link #getValueClass()}), {@code false} in case of the {@link WritableProperty property} itself. | ||
| * @see #getTypeArgument(int) | ||
| * @see #getOwnerType() | ||
| * @see #getOwnerClass() | ||
| */ | ||
| default boolean isValueNotProperty() { | ||
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| return true; | ||
| } | ||
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| /** | ||
| * @return the {@link Type} this {@link PropertyTypeInfo} is derived from. According to {@link #isValueNotProperty()} | ||
| * this {@link Type} will either reflect the {@link WritableProperty#get() property value} or the | ||
| * {@link WritableProperty property} itself. | ||
| * @see #isValueNotProperty() | ||
| */ | ||
| default Type getOwnerType() { | ||
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| return getValueClass(); | ||
| } | ||
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| /** | ||
| * @return the {@link Class} this {@link PropertyTypeInfo} is derived from. According to {@link #isValueNotProperty()} | ||
| * this {@link Class} will either reflect the {@link WritableProperty#get() property value} or the | ||
| * {@link WritableProperty property} itself. | ||
| * @see #isValueNotProperty() | ||
| */ | ||
| default Class<?> getOwnerClass() { | ||
|
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| return getValueClass(); | ||
| } | ||
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| /** | ||
| * @param <V> type of {@link #getValueClass()}. | ||
| * @param valueClass the {@link #getValueClass()}. | ||
| * @return a simple {@link PropertyTypeInfo} only containing {@link #getValueClass()}. | ||
| */ | ||
| static <V> PropertyTypeInfo<V> ofValueClass(Class<V> valueClass) { | ||
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| return () -> valueClass; | ||
| } | ||
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| } | ||
| package io.github.mmm.property.factory; | ||
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| import java.lang.reflect.Type; | ||
|
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| import io.github.mmm.property.WritableProperty; | ||
| import io.github.mmm.property.object.WritableSimpleProperty; | ||
|
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| /** | ||
| * Interface with the type information required for generic {@link WritableProperty property} | ||
| * {@link PropertyFactory#create(String, PropertyTypeInfo, io.github.mmm.property.PropertyMetadata) creation}. | ||
| * | ||
| * @param <V> type of {@link #getValueClass()}. | ||
| * @since 1.0.0 | ||
| */ | ||
| public interface PropertyTypeInfo<V> { | ||
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| /** | ||
| * @return the {@link Class} reflecting the {@link WritableProperty property} {@link WritableProperty#get() value}. | ||
| */ | ||
| Class<V> getValueClass(); | ||
|
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| /** | ||
| * @return the optional {@link io.github.mmm.property.container.ContainerProperty#getValueProperty() value property} | ||
| * or {@code null}. | ||
| */ | ||
| default WritableProperty<?> getValueProperty() { | ||
|
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| return null; | ||
| } | ||
|
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| /** | ||
| * @return the optional {@link io.github.mmm.property.container.map.MapProperty#getKeyProperty() key property} or | ||
| * {@code null}. | ||
| */ | ||
| default WritableSimpleProperty<?> getKeyProperty() { | ||
|
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| return null; | ||
| } | ||
|
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| /** | ||
| * @param i the index position of the requested type parameters. Use {@code 0} for the first parameter. | ||
| * @return the type parameter at the given {@code index}. Will be {@code null} if not available. If | ||
| * {@link #getValueClass()} returns {@code null} this will be the type parameters of the property type and | ||
| * otherwise of the value type. This method is provided for custom property developers who need generic | ||
| * information in they {@link io.github.mmm.property.factory.PropertyFactory} implementation. In order to draw | ||
| * the correct conclusions, also consider {@link #isValueNotProperty()}. | ||
| */ | ||
| default Type getTypeArgument(int i) { | ||
|
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| return null; | ||
| } | ||
|
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| /** | ||
| * @param i the index position of the requested type parameters. Use {@code 0} for the first parameter. | ||
| * @return the type parameter at the given {@code index}. Will be {@code null} if not available. If | ||
| * {@link #getValueClass()} returns {@code null} this will be the type parameters of the property type and | ||
| * otherwise of the value type. This method is provided for custom property developers who need generic | ||
| * information in they {@link io.github.mmm.property.factory.PropertyFactory} implementation. In order to draw | ||
| * the correct conclusions, also consider {@link #isValueNotProperty()}. | ||
| */ | ||
| default Class<?> getTypeArgumentClass(int i) { | ||
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| return null; | ||
| } | ||
|
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| /** | ||
| * @return {@code true} if the {@link #getOwnerType() owner} is the {@link WritableProperty#get() property value} (see | ||
| * {@link #getValueClass()}), {@code false} in case of the {@link WritableProperty property} itself. | ||
| * @see #getTypeArgument(int) | ||
| * @see #getOwnerType() | ||
| * @see #getOwnerClass() | ||
| */ | ||
| default boolean isValueNotProperty() { | ||
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| return true; | ||
| } | ||
|
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| /** | ||
| * @return the {@link Type} this {@link PropertyTypeInfo} is derived from. According to {@link #isValueNotProperty()} | ||
| * this {@link Type} will either reflect the {@link WritableProperty#get() property value} or the | ||
| * {@link WritableProperty property} itself. | ||
| * @see #isValueNotProperty() | ||
| */ | ||
| default Type getOwnerType() { | ||
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| return getValueClass(); | ||
| } | ||
|
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| /** | ||
| * @return the {@link Class} this {@link PropertyTypeInfo} is derived from. According to {@link #isValueNotProperty()} | ||
| * this {@link Class} will either reflect the {@link WritableProperty#get() property value} or the | ||
| * {@link WritableProperty property} itself. | ||
| * @see #isValueNotProperty() | ||
| */ | ||
| default Class<?> getOwnerClass() { | ||
|
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| return getValueClass(); | ||
| } | ||
|
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| /** | ||
| * @param <V> type of {@link #getValueClass()}. | ||
| * @param valueClass the {@link #getValueClass()}. | ||
| * @return a simple {@link PropertyTypeInfo} only containing {@link #getValueClass()}. | ||
| */ | ||
| static <V> PropertyTypeInfo<V> ofValueClass(Class<V> valueClass) { | ||
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| return () -> valueClass; | ||
| } | ||
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| } |