Spring Data Neo4j how to aggregate - neo4j

Question

Im trying to do what I think should be a very basic task but I'm getting steam rolled. My code is as follows:
#Query("match (x:Package) where x.houseAirwayBill = {self}.houseAirwayBill return count(x)")
#JsonIgnore
Long pieces
#JsonProperty("total_pieces")
Long getPieces(){
return pieces
}
However, it just throws a stack strace saying that it gets a '1' when it wants to get a map... I've been looking at other ways to do this, but I can't get the repository to autowire in the Domain object either... I'm at a loss. Did no one forecee that you'd want to do an aggregate in a domain object?
My build.gradle
buildscript {
repositories {
maven { url "https://repo.spring.io/libs-release" }
mavenLocal()
mavenCentral()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:1.1.10.RELEASE")
}
}
apply plugin: "groovy"
apply plugin: 'spring-boot'
sourceCompatibility = JavaVersion.VERSION_1_8
targetCompatibility = JavaVersion.VERSION_1_8
version = "1.4.38"
repositories {
mavenLocal()
mavenCentral()
jcenter()
maven { url "http://m2.neo4j.org/content/repositories/releases/"}
maven { url "https://repo.spring.io/libs-release" }
maven { url "https://repo.spring.io/libs-milestone" }
maven { url 'http://repo.spring.io/snapshot' }
}
defaultTasks "clean", "processResources", "build"
dependencies {
//groovy
compile 'org.codehaus.groovy:groovy-all:2.4.0-rc-2'
//spring
compile("org.springframework.boot:spring-boot-starter-web"){
exclude group: 'org.springframework.boot', module: 'spring-boot-starter-tomcat'
}
compile("org.springframework.boot:spring-boot-starter-jetty")
compile 'org.eclipse.jetty:jetty-servlet:9.3.0.M1'
compile 'org.springframework.boot:spring-boot-actuator:1.2.3.RELEASE'
//compile 'org.springframework.data:spring-data-rest-webmvc:2.3.0.RELEASE'
//compile 'org.springframework.hateoas:spring-hateoas:0.17.0.RELEASE'
compile('org.springframework.boot:spring-boot-starter-data-rest:1.2.3.RELEASE')
//compile 'org.springframework.data:spring-data-neo4j:3.3.0.RELEASE'
compile 'org.springframework.data:spring-data-neo4j-aspects:3.3.0.RELEASE'
//compile "org.neo4j:neo4j-rest-graphdb:2.0.1"
compile("org.hibernate:hibernate-validator")
compile 'javax.persistence:persistence-api:1.0.2'
compile 'org.springframework.data:spring-data-neo4j-rest:3.4.0.BUILD-SNAPSHOT'
compile 'org.springframework.data:spring-data-jpa:1.8.0.RELEASE'
//Jersey
compile 'org.glassfish.jersey.core:jersey-client:2.17'
//JsonSchema stuff
// Required if generating equals, hashCode, or toString methods
compile 'commons-lang:commons-lang:2.6'
// Required if generating JSR-303 annotations
compile 'javax.validation:validation-api:1.1.0.CR2'
// Required if generating Jackson 2 annotations
compile 'com.fasterxml.jackson.core:jackson-databind:2.5.0'
compile 'com.fasterxml.jackson.datatype:jackson-datatype-joda:2.5.0'
// Required if generating JodaTime data types
compile 'joda-time:joda-time:2.2'
//Retrofit
compile 'com.squareup.retrofit:retrofit:1.9.0'
compile 'com.squareup.retrofit:converter-jackson:1.2.2'
//logging
compile 'ch.qos.logback:logback-classic:1.1.2'
}
task wrapper(type: Wrapper) {
gradleVersion = '2.2.1'
}
processResources {
expand(project.properties)
}

Answer 1

So, after sleeping over the problem and looking over the documentation, I did this:
#Query("start item=node({self}) match (x:Package) where x.houseAirwayBill= item.houseAirwayBill return count(x)")
#JsonIgnore
def pieces
#JsonProperty("total_pieces")
#Transactional
Long getPieces(){
return pieces.get("count(x)") as Long
}
the start item=node({self}) is really important as it binds the self reference to a parameter which I called Item in this case. The getter NEEDS to be in a transaction as well. I hope this helps because I could not find an specific example on how to do this anywhere.
Code is in groovy btw.