Java Doc for FetchOp.java in  » Testing » PolePosition-0.20 » com » versant » core » jdbc » fetch » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Testing » PolePosition 0.20 » com.versant.core.jdbc.fetch   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    com.versant.core.jdbc.fetch.FetchOp All known Subclasses:   com.versant.core.jdbc.fetch.FopGetState,  com.versant.core.jdbc.fetch.FopGetOID,  com.versant.core.jdbc.fetch.FopGetFetchGroup, FetchOp abstract public class FetchOp (Code) On object or field fetch in an EJBQL query. An array of these is contructed for the select list of an EJBQL query and any eager fetched fields (i.e. fields in the default fetch group). Field Summary final protected  FetchSpec spec      Constructor Summary public   FetchOp(FetchSpec spec)      Method Summary abstract public  void fetch(FetchResultImp fetchResult)      Fetch our data. public  void fetchResultClosed(FetchResult fetchResult)      This is invoked when a FetchResult from our FetchSpec is closed. public  void generateSQL()      This is called after our spec has generated its SQL. abstract public  String getDescription()      Get a one line user understandable description of this operation. public  int getIndex()      public  String getName()      Get the name of this op. abstract public  FetchOpData getOutputData()      Return a FetchOpData that accesses the output we produce. public  Object getResult(FetchResultImp fetchResult)      Get an object to be included in fetch projection. public  int getResultType()      Get the type of our result (INTW, OID, STRING etc). public  FetchSpec getSpec()      abstract public  SqlExp init(SelectExp root, int firstColIndex)      Init this FetchOp and return the expressions that we need to be added to the select list of the query or null if none. public  RuntimeException internal(String msg)      public  RuntimeException notImplemented()      public  RuntimeException notImplemented(String msg)      public  void printPlan(PrintStream p, String indent)      Print a user understandable description of this operation. public  void setIndex(int index)      public  String toString()      protected  String toStringImp()      Override this to provide subclass specific info for toString that is not already provided by getDescription. Field Detail spec final protected FetchSpec spec(Code) Constructor Detail FetchOp public FetchOp(FetchSpec spec)(Code) Method Detail fetch abstract public void fetch(FetchResultImp fetchResult) throws SQLException(Code) Fetch our data. fetchResultClosed public void fetchResultClosed(FetchResult fetchResult)(Code) This is invoked when a FetchResult from our FetchSpec is closed. Closed any nested queries etc. generateSQL public void generateSQL()(Code) This is called after our spec has generated its SQL. Generate SQL for any nested FetchSpec's and clear fields no longer needed (e.g. any SqlExp type fields). getDescription abstract public String getDescription()(Code) Get a one line user understandable description of this operation. getIndex public int getIndex()(Code) getName public String getName()(Code) Get the name of this op. The default is the unqualified class name with any Fop prefix removed. getOutputData abstract public FetchOpData getOutputData()(Code) Return a FetchOpData that accesses the output we produce. This can be used when creating other FetchOp's that need this output. getResult public Object getResult(FetchResultImp fetchResult)(Code) Get an object to be included in fetch projection. getResultType public int getResultType()(Code) Get the type of our result (INTW, OID, STRING etc). See Also:   com.versant.core.metadata.MDStatics.OID getSpec public FetchSpec getSpec()(Code) init abstract public SqlExp init(SelectExp root, int firstColIndex)(Code) Init this FetchOp and return the expressions that we need to be added to the select list of the query or null if none. The FetchOp may add additional FetchOp's to the spec. internal public RuntimeException internal(String msg)(Code) notImplemented public RuntimeException notImplemented()(Code) notImplemented public RuntimeException notImplemented(String msg)(Code) printPlan public void printPlan(PrintStream p, String indent)(Code) Print a user understandable description of this operation. setIndex public void setIndex(int index)(Code) toString public String toString()(Code) toStringImp protected String toStringImp()(Code) Override this to provide subclass specific info for toString that is not already provided by getDescription. Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)