cborm
Install
v3.x
v3.x
  • Introduction
  • Intro
    • Release History
      • What's New With 3.9.0
      • What's New With 3.8.0
      • What's New With 3.7.0
      • What's New With 3.6.0
      • What's New With 3.5.0
      • What's New With 3.4.0
      • What's New With 3.3.0
      • What's New With 3.2.x
      • What's New With 3.1.0
      • What's New With 3.0.0
    • About This Book
    • Author
  • Getting Started
    • Overview
    • Installation
    • Basic Crud - Services
    • Basic Crud - ActiveEntity
  • Base ORM Service
    • Overview
    • Service Properties
    • Concrete Services
    • Service Methods
      • Criteria Queries
        • getRestrictions
        • newCriteria
      • Creation - Population
        • new
        • populate
        • populateFromJSON
        • populateFromQuery
        • populateFromXML
      • Counters
        • count
        • countWhere
        • exists
      • Deleting Entities
        • delete
        • deleteAll
        • deleteByID
        • deleteByQuery
        • deleteWhere
      • Entity Convenience Methods
        • getDirtyPropertyNames
        • getEntityGivenName
        • getEntityMetadata
        • getKey
        • getKeyValue
        • getPropertyNames
        • getTableName
        • isDirty
        • refresh
      • Finders
        • findit
        • findOrFail
        • findByExample
        • findWhere
        • findAll
        • findAllWhere
      • Getters
        • get
        • getOrFail
        • getAll
      • ORM Session
        • clear
        • evict
        • evictCollection
        • evictQueries
        • getSessionStatistics
        • isSessionDirty
        • merge
        • sessionContains
      • Querying
        • executeQuery
        • list
      • Saving Entities
        • save
        • saveAll
      • Utility Methods
        • autoCast
        • createService
        • idCast
        • nullValue
        • when
    • Dynamic Finders- Counters
      • Method Signatures
      • Method Expressions
      • Query Options
    • Automatic Java Types
  • Virtual Services
    • Overview
    • Service Properties
    • Concrete Virtual Services
  • Active Record
    • Active Entity Overview
    • Constructor Properties
    • Usage
    • Validation
  • Criteria Queries
    • Criteria Builder
      • Getting Started
      • Restrictions
        • Value Casting
        • SQL Restrictions
      • Modifiers
      • Results
      • Associations
      • Projections & Aggregates
    • Detached Criteria Builder
      • Getting Started
      • Projections
      • Subqueries
      • DetachedSQLProjection()
      • Criterias
      • Associations
    • Help! I'm Not Getting the Result I expected!
  • Advanced Features
    • Automatic REST Crud
    • Hibernate Logging
    • Mementifier
    • ORM Events
      • Custom Event Handler
    • Unique Property Validation
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  • Examples

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  1. Base ORM Service
  2. Service Methods
  3. Counters

exists

Checks if the given entityName and id exists in the database, this method does not load the entity into session. A very useful approach to check for data existence.

Returns

  • This function returns boolean

Arguments

Key

Type

Required

Default

Description

entityName

any

Yes

---

id

any

Yes

---

Examples

if( ormService.exists("Account",123) ){
 // do something
}
PreviouscountWhereNextDeleting Entities

Last updated 5 years ago

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