看來你要插入一個屬性「ID」,但它在藍圖的標準保留。你可以將其重命名(與「場」變壓器)或設置在這個東方裝載機:
standardElementConstraints: false,
然後我創建這個內容的文件/temp/datasets/charles.json:
[
{
name: "Joe",
id: 1,
friends: [2,4,5],
enemies: [6]
},
{
name: "Suzie",
id: 2,
friends: [1,4,6],
enemies: [5,2]
}
]
而且這條管道:
{
config: {
log: "debug",
parallel: false
},
source : {
file: { path: "/temp/datasets/charles.json", lock : true }
},
extractor : {
json: {}
},
transformers : [
{ merge: { joinFieldName:"id", lookup:"Account.id" } },
{ vertex: { class: "Account"} },
{ edge: {
"class": "Friend",
"joinFieldName": "friends",
"lookup": "Account.id",
"unresolvedLinkAction": "CREATE"
} },
{ edge: {
"class": "Enemy",
"joinFieldName": "enemies",
"lookup": "Account.id",
"unresolvedLinkAction": "CREATE"
} }
],
loader : {
orientdb: {
dbURL: "plocal:/temp/databases/charles",
dbUser: "admin",
dbPassword: "admin",
dbAutoDropIfExists: true,
dbAutoCreate: true,
standardElementConstraints: false,
tx: false,
wal: false,
batchCommit: 1000,
dbType: "graph",
classes: [{name: 'Account', extends:"V"}, {name: 'Friend', extends:"E"}, {name: 'Enemy', extends:"E"}],
indexes: [{class:"Account", fields:["id:integer"], type:"UNIQUE_HASH_INDEX" }]
}
}
}
確保有使用ETL罐子的最後一個版本與默認版本(替換它在$ ORIENTDB/lib目錄)。最後一個版本是從下載:
https://oss.sonatype.org/content/repositories/snapshots/com/orientechnologies/orientdb-etl/2.0.2-SNAPSHOT/orientdb-etl-2.0.2-20150208.225903-1.jar
或者得到OrientDB ETL的主要2.0.2。