Unique properties not enforced, duplicate values possible

[jansorg]

I've noticed that properties with unique = true are not enforcing the uniqueness. See the program below which demonstrates this.
The program should fail to create an entity with a duplicate value of the unique property. It should also fail to create an empty property of the xdRequiredStringProp, I think.

I'm using these version:

ext.xodus_version = '1.2.3358'
ext.xodus_dnq_version = '1.1.363'

Let me know if I misunderstood the API.

package myPackage

import jetbrains.exodus.entitystore.Entity
import kotlinx.dnq.XdEntity
import kotlinx.dnq.XdModel
import kotlinx.dnq.XdNaturalEntityType
import kotlinx.dnq.query.toList
import kotlinx.dnq.store.container.StaticStoreContainer
import kotlinx.dnq.xdRequiredStringProp
import java.io.File

class TestEntity(entity: Entity) : XdEntity(entity) {
    companion object : XdNaturalEntityType<TestEntity>()

    var uniqueName by xdRequiredStringProp(unique = true)
}

fun main(args: Array<String>) {
    XdModel.registerNode(TestEntity)

    val dir = File("test_entity_store")
    if (dir.exists()) {
        dir.deleteRecursively()
    }

    val store = StaticStoreContainer.init(dir, "db")
    store.transactional {
        TestEntity.new {
            uniqueName = "value"
        }
    }

    // expected that this transaction fails
    store.transactional {
        TestEntity.new {
            uniqueName = "value"
        }
    }

    // expected that this transaction fails due to the empty string (treated as null as described by xdRequiredStringProp)
    store.transactional {
        TestEntity.new {
            uniqueName = ""
        }
    }

    val names = store.transactional(readonly = true){
        TestEntity.all().toList().map { it.uniqueName }
    }
    
    // prints "value, value, "
    println(names)
}

[lehvolk]

You forget to call initMetaData(XdModel.hierarchy, store) before operating with entities.

[jansorg]

@lehvolk Thanks for the reply! Does it make sense to warn when a store with uninitialized meta data is used?

[lehvolk]

@jansorg done.

[jansorg]

@lehvolk Thanks!