本文整理了Java中org.apache.openjpa.kernel.Query类的一些代码示例，展示了Query类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Query类的具体详情如下：
包路径：org.apache.openjpa.kernel.Query
类名称：Query

Query介绍

[英]OpenJPA query interface.
[中]OpenJPA查询接口。

代码示例

代码示例来源：origin: org.apache.openjpa/openjpa-all

/**
 * Initialize this instance from the values held in the
 * specified {@link Query}.
 */
public void setFrom(Query query) {
  _language = query.getLanguage();
  _candidate = query.getCandidateType();
  _res = query.getResultType();
  _query = query.getQueryString();
}

代码示例来源：origin: org.apache.openejb.patch/openjpa

/**
 * Return a key for the given query, or null if it is not cacheable.
 */
public static QueryKey newInstance(Query q, Object[] args) {
  // compile to make sure info encoded in query string is available
  // via API calls (candidate class, result class, etc)
  q.compile();
  return newInstance(q, false, args, q.getCandidateType(),
    q.hasSubclasses(), q.getStartRange(), q.getEndRange(), null);
}

代码示例来源：origin: org.apache.openjpa/openjpa-kernel

public Broker getBroker() {
  try {
    return _query.getBroker();
  } catch (RuntimeException re) {
    throw translate(re);
  }
}

代码示例来源：origin: org.apache.openjpa/openjpa-jdbc

/**
 * Pours the post-compilation state held by this receiver to the given
 * query.
 */
public void setInto(Query q) {
  q.setQuery(_id);
  q.setCandidateType(_candidate, _subclasses);
}

代码示例来源：origin: org.apache.openejb.patch/openjpa

/**
 * Set query template information into the given concrete
 * query instance. However, the language, query string, and
 * candidate class are assumed to be declared in the query
 * instantiation, and hints are not transferred.
 */
public void setInto(Query query) {
  if (_candidate != null)
    query.setCandidateType(_candidate, true);
  if (!StringUtils.isEmpty(_query))
    query.setQuery(_query);
  if (_res != null)
    query.setResultType(_res);
  if (_readOnly != null)
    query.setReadOnly(_readOnly.booleanValue());
  if (_resultSetMappingName != null)
    query.setResultMapping(null, _resultSetMappingName);
}

代码示例来源：origin: org.apache.openejb.patch/openjpa

/**
 * Constructor; supply factory exception translator and delegate.
 * 
 * @param em  The EntityManager which created this query
 * @param ret Exception translator for this query
 * @param query The underlying "kernel" query.
 */
public QueryImpl(EntityManagerImpl em, RuntimeExceptionTranslator ret, org.apache.openjpa.kernel.Query query,
  QueryMetaData qmd) {
  super(qmd, em);
  _query = new DelegatingQuery(query, ret);
  _lock = new ReentrantLock();
  if(query.getLanguage() == QueryLanguages.LANG_SQL) { 
    _convertPositionalParams = false; 
  }
  else { 
    Compatibility compat  = query.getStoreContext().getConfiguration().getCompatibilityInstance(); 
    _convertPositionalParams = compat.getConvertPositionalParametersToNamed();    
  }
  
}

代码示例来源：origin: org.apache.openejb.patch/openjpa

/**
 * Ignores this query from PreparedQueryCache by recreating the original
 * query if it has been cached. 
 */
void ignorePreparedQuery() {
  PreparedQuery cached = _em.getPreparedQuery(_id);
  if (cached == null)
    return;
  Broker broker = _em.getBroker();
  // Critical assumption: Only JPQL queries are cached and more 
  // importantly, the identifier of the prepared query is the original
  // JPQL String
  String JPQL = JPQLParser.LANG_JPQL;
  String jpql = _id;
  
  org.apache.openjpa.kernel.Query newQuery = broker.newQuery(JPQL, jpql);
  newQuery.getFetchConfiguration().copy(_query.getFetchConfiguration());
  newQuery.compile();
  _query = new DelegatingQuery(newQuery, _em.getExceptionTranslator());
}

代码示例来源：origin: org.apache.openjpa/openjpa-kernel

public String getLanguage() {
  try {
    return _query.getLanguage();
  } catch (RuntimeException re) {
    throw translate(re);
  }
}

代码示例来源：origin: org.apache.openjpa/openjpa-all

public void setResultMapping(Class scope, String name) {
  try {
    _query.setResultMapping(scope, name);
  } catch (RuntimeException re) {
    throw translate(re);
  }
}

代码示例来源：origin: org.apache.openjpa/openjpa-kernel

public void setCandidateType(Class cls, boolean subs) {
  try {
    _query.setCandidateType(cls, subs);
  } catch (RuntimeException re) {
    throw translate(re);
  }
}

代码示例来源：origin: org.apache.openejb.patch/openjpa-kernel

public Class getCandidateType() {
  try {
    return _query.getCandidateType();
  } catch (RuntimeException re) {
    throw translate(re);
  }
}

代码示例来源：origin: org.apache.openjpa/com.springsource.org.apache.openjpa

public FetchConfiguration getFetchConfiguration() {
  try {
    return _query.getFetchConfiguration();
  } catch (RuntimeException re) {
    throw translate(re);
  }
}

代码示例来源：origin: org.apache.openjpa/openjpa-kernel

public boolean setQuery(Object query) {
  try {
    return _query.setQuery(query);
  } catch (RuntimeException re) {
    throw translate(re);
  }
}

代码示例来源：origin: org.apache.openjpa/openjpa-kernel

public StoreContext getStoreContext() {
  try {
    return _query.getStoreContext();
  } catch (RuntimeException re) {
    throw translate(re);
  }
}

代码示例来源：origin: org.apache.openjpa/openjpa-all

public boolean hasSubclasses() {
  try {
    return _query.hasSubclasses();
  } catch (RuntimeException re) {
    throw translate(re);
  }
}

代码示例来源：origin: org.apache.openejb.patch/openjpa-kernel

public void compile() {
  try {
    _query.compile();
  } catch (RuntimeException re) {
    throw translate(re);
  }
}

代码示例来源：origin: org.apache.openejb.patch/openjpa-kernel

/**
 * Set query template information into the given concrete
 * query instance. However, the language, query string, and
 * candidate class are assumed to be declared in the query
 * instantiation, and hints are not transferred.
 */
public void setInto(Query query) {
  if (_candidate != null)
    query.setCandidateType(_candidate, true);
  if (!StringUtils.isEmpty(_query))
    query.setQuery(_query);
  if (_res != null)
    query.setResultType(_res);
  if (_readOnly != null)
    query.setReadOnly(_readOnly.booleanValue());
  if (_resultSetMappingName != null)
    query.setResultMapping(null, _resultSetMappingName);
}

代码示例来源：origin: org.apache.openjpa/openjpa-all

/**
 * Constructor; supply factory exception translator and delegate.
 * 
 * @param em  The EntityManager which created this query
 * @param ret Exception translator for this query
 * @param query The underlying "kernel" query.
 */
public QueryImpl(EntityManagerImpl em, RuntimeExceptionTranslator ret, org.apache.openjpa.kernel.Query query,
  QueryMetaData qmd) {
  super(qmd, em);
  _query = new DelegatingQuery(query, ret);
  _lock = new ReentrantLock();
  if(query.getLanguage() == QueryLanguages.LANG_SQL) { 
    _convertPositionalParams = false; 
  }
  else { 
    Compatibility compat  = query.getStoreContext().getConfiguration().getCompatibilityInstance(); 
    _convertPositionalParams = compat.getConvertPositionalParametersToNamed();    
  }
  
}

代码示例来源：origin: org.apache.openejb.patch/openjpa-jdbc

/**
 * Pours the post-compilation state held by this receiver to the given
 * query.
 */
public void setInto(Query q) {
  q.setQuery(_id);
  q.setCandidateType(_candidate, _subclasses);
}

代码示例来源：origin: org.apache.openejb.patch/openjpa-persistence

/**
 * Ignores this query from PreparedQueryCache by recreating the original
 * query if it has been cached. 
 */
void ignorePreparedQuery() {
  PreparedQuery cached = _em.getPreparedQuery(_id);
  if (cached == null)
    return;
  Broker broker = _em.getBroker();
  // Critical assumption: Only JPQL queries are cached and more 
  // importantly, the identifier of the prepared query is the original
  // JPQL String
  String JPQL = JPQLParser.LANG_JPQL;
  String jpql = _id;
  
  org.apache.openjpa.kernel.Query newQuery = broker.newQuery(JPQL, jpql);
  newQuery.getFetchConfiguration().copy(_query.getFetchConfiguration());
  newQuery.compile();
  _query = new DelegatingQuery(newQuery, _em.getExceptionTranslator());
}