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concept Entity > NamedConcept { } abstract concept AbstractJavaObjectEntity<A> > Entity { abstract A object(); toString { S s = super.toString(); O o = object(); if (o != null) s += " " + str_pcall(o); ret s; } } concept TransientJavaObjectEntity<A> > AbstractJavaObjectEntity<A> { gettable transient A object; } concept PersistentJavaObjectEntity<A> > AbstractJavaObjectEntity<A> { gettable A object; } concept ConceptEntity<A extends Concept> extends AbstractJavaObjectEntity<A> { new Ref<A> concept; *(A concept) { this.concept.set(concept); } A object() { ret concept!; } } concept FieldInObjectEntity > Entity { new Ref<AbstractJavaObjectEntity<?>> objectEntity; S fieldName; *(AbstractJavaObjectEntity objectEntity, S *fieldName) { this.objectEntity.set(objectEntity); } O value() { ret !objectEntity.has() ? null : getOpt(objectEntity->object(), fieldName); } toString { S s = super.toString() + " " + fieldName + " in " + objectEntity; O value = value(); if (value != null) s += appendBracketed("value of type " + className(value)); ret s; } } concept DeclaredFieldEntity > Entity { Class theClass; S fieldName; *(Class *theClass, S *fieldName) {} Field fieldObject() { ret findFieldOfClass(theClass, fieldName); } toString { var fieldObject = fieldObject(); ret super.toString() + " " + (fieldObject != null ? str(fieldObject) : "[field not found: " + className(theClass) + "." + fieldName + "]"); } }
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Snippet ID: | #1034593 |
Snippet name: | Entity etc. |
Eternal ID of this version: | #1034593/16 |
Text MD5: | 6e891775dd5485e0e9efec1f5a4a16db |
Transpilation MD5: | c0342ea189530a9f8affc30846ab082e |
Author: | stefan |
Category: | javax |
Type: | JavaX fragment (include) |
Public (visible to everyone): | Yes |
Archived (hidden from active list): | No |
Created/modified: | 2022-02-19 09:52:04 |
Source code size: | 1610 bytes / 64 lines |
Pitched / IR pitched: | No / No |
Views / Downloads: | 147 / 744 |
Version history: | 15 change(s) |
Referenced in: | [show references] |