Package org.apache.camel.component.jpa
Class QueryBuilder
- java.lang.Object
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- org.apache.camel.component.jpa.QueryBuilder
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- All Implemented Interfaces:
QueryFactory
public abstract class QueryBuilder extends Object implements QueryFactory
A builder of query expressions
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Nested Class Summary
Nested Classes Modifier and Type Class Description protected static class
QueryBuilder.ParameterBuilder
A plugin strategy to populate the query with parameters
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Constructor Summary
Constructors Constructor Description QueryBuilder()
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description protected void
checkNoParametersConfigured()
javax.persistence.Query
createQuery(javax.persistence.EntityManager entityManager)
Creates a new query to find objects to be processedprotected String
getParameterDescription()
protected abstract javax.persistence.Query
makeQueryObject(javax.persistence.EntityManager entityManager)
static QueryBuilder
namedQuery(String namedQuery)
Creates a named querystatic QueryBuilder
nativeQuery(String nativeQuery)
Creates a native SQL querystatic QueryBuilder
nativeQuery(String nativeQuery, Class<?> resultClass)
Creates a native SQL query with a provided resultClassQueryBuilder
parameters(Object... parameters)
Specifies the parameters to the queryQueryBuilder
parameters(Collection<?> parameters)
Specifies the parameters to the query as an ordered collection of parametersQueryBuilder
parameters(Map<String,Object> parameterMap)
Specifies the parameters to the query as a Map of key/value pairsprotected void
populateQuery(javax.persistence.EntityManager entityManager, javax.persistence.Query query)
static QueryBuilder
query(String query)
Creates a query builder using the JPA query syntax
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Method Detail
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query
public static QueryBuilder query(String query)
Creates a query builder using the JPA query syntax- Parameters:
query
- JPA query language to create- Returns:
- a query builder
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namedQuery
public static QueryBuilder namedQuery(String namedQuery)
Creates a named query
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nativeQuery
public static QueryBuilder nativeQuery(String nativeQuery)
Creates a native SQL query
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nativeQuery
public static QueryBuilder nativeQuery(String nativeQuery, Class<?> resultClass)
Creates a native SQL query with a provided resultClass
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parameters
public QueryBuilder parameters(Object... parameters)
Specifies the parameters to the query- Parameters:
parameters
- the parameters to be configured on the query- Returns:
- this query builder
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parameters
public QueryBuilder parameters(Collection<?> parameters)
Specifies the parameters to the query as an ordered collection of parameters- Parameters:
parameters
- the parameters to be configured on the query- Returns:
- this query builder
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parameters
public QueryBuilder parameters(Map<String,Object> parameterMap)
Specifies the parameters to the query as a Map of key/value pairs- Parameters:
parameterMap
- the parameters to be configured on the query- Returns:
- this query builder
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checkNoParametersConfigured
protected void checkNoParametersConfigured()
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createQuery
public javax.persistence.Query createQuery(javax.persistence.EntityManager entityManager)
Description copied from interface:QueryFactory
Creates a new query to find objects to be processed- Specified by:
createQuery
in interfaceQueryFactory
- Parameters:
entityManager
- the enity manager- Returns:
- the query configured with any parameters etc
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getParameterDescription
protected String getParameterDescription()
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populateQuery
protected void populateQuery(javax.persistence.EntityManager entityManager, javax.persistence.Query query)
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makeQueryObject
protected abstract javax.persistence.Query makeQueryObject(javax.persistence.EntityManager entityManager)
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