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org.apache.derby.impl.sql
Class GenericStorablePreparedStatement  

java.lang.Object
  org.apache.derby.impl.sql.GenericPreparedStatement
      org.apache.derby.impl.sql.GenericStorablePreparedStatement

All Implemented Interfaces:

org.apache.derby.catalog.Dependable, org.apache.derby.iapi.sql.depend.Dependent, org.apache.derby.iapi.sql.execute.ExecPreparedStatement, java.io.Externalizable, org.apache.derby.iapi.services.io.Formatable, org.apache.derby.iapi.sql.PreparedStatement, org.apache.derby.iapi.sql.depend.Provider, java.io.Serializable, org.apache.derby.iapi.sql.StorablePreparedStatement, org.apache.derby.iapi.services.io.TypedFormat

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public class GenericStorablePreparedStatement

extends GenericPreparedStatement

implements org.apache.derby.iapi.services.io.Formatable, org.apache.derby.iapi.sql.StorablePreparedStatement

Prepared statement that can be made persistent.

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Field Summary
private  org.apache.derby.iapi.util.ByteArray	byteCode
private  java.lang.String	className

 

Fields inherited from class org.apache.derby.impl.sql.GenericPreparedStatement

activationClass, beginCompileTimestamp, bindTime, compileTime, compilingStatement, endCompileTimestamp, executionConstants, generateTime, isAtomic, isValid, optimizeTime, paramTypeDescriptors, parseTime, resultDesc, savedObjects, sourceTxt, spsAction, statement, targetColumns, targetTable, updateColumns, updateMode, UUIDString, UUIDValue

 

Fields inherited from interface org.apache.derby.catalog.Dependable

ALIAS, COLUMNS_IN_TABLE, CONGLOMERATE, CONSTRAINT, DEFAULT, FILE, HEAP, INDEX, PREPARED_STATEMENT, SCHEMA, STORED_PREPARED_STATEMENT, TABLE, TRIGGER, VIEW

 

Constructor Summary
	GenericStorablePreparedStatement()           Niladic constructor, for formatable only.
(package private)	GenericStorablePreparedStatement(org.apache.derby.iapi.sql.Statement stmt)

 

Method Summary
org.apache.derby.iapi.services.loader.GeneratedClass	getActivationClass()           Get and load the activation class.
(package private)  org.apache.derby.iapi.util.ByteArray	getByteCodeSaver()           Get our byte code array.
int	getTypeFormatId()           Get the formatID which corresponds to this class.
boolean	isStorable()
void	loadGeneratedClass()           Load up the class from the saved bytes.
void	readExternal(java.io.ObjectInput in)           This method restores an object's state by reading in the instance data for the object from the passed in stream.
void	setActivationClass(org.apache.derby.iapi.services.loader.GeneratedClass ac)
java.lang.String	toString()           Convert this Object to a human-readable String.
void	writeExternal(java.io.ObjectOutput out)           This method is responsible for writing the instance data of an object to the passed in stream.

 

Methods inherited from class org.apache.derby.impl.sql.GenericPreparedStatement

completeCompile, execute, execute, finish, getActivation, getBeginCompileTimestamp, getBindTimeInMillis, getClassType, getClone, getCompileTimeInMillis, getCompileTimeWarnings, getConstantAction, getCursorInfo, getDependableFinder, getEndCompileTimestamp, getGenerateTimeInMillis, getObjectID, getObjectName, getOptimizeTimeInMillis, getParameterTypes, getParseTimeInMillis, getResultDescription, getSavedObject, getSavedObjects, getSource, getSPSName, getTargetColumns, getTargetTable, getUpdateColumns, getUpdateMode, isAtomic, isPersistent, isValid, makeInvalid, makeValid, needsSavepoint, prepareToInvalidate, referencesSessionSchema, rePrepare, setCacheHolder, setCompileTimeMillis, setCompileTimeWarnings, setConstantAction, setCursorInfo, setExecuteStatementNameAndSchema, setIsAtomic, setNeedsSavepoint, setParams, setSavedObjects, setSource, setSPSAction, setSPSName, setValid, upToDate

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Methods inherited from interface org.apache.derby.iapi.sql.execute.ExecPreparedStatement

finish, getClone, getConstantAction, getCursorInfo, getSavedObject, getSavedObjects, getTargetColumns, getTargetTable, getUpdateColumns, getUpdateMode, needsSavepoint, setSource, setSPSAction, setValid

 

Methods inherited from interface org.apache.derby.iapi.sql.PreparedStatement

execute, execute, getActivation, getBeginCompileTimestamp, getBindTimeInMillis, getCompileTimeInMillis, getCompileTimeWarnings, getEndCompileTimestamp, getGenerateTimeInMillis, getOptimizeTimeInMillis, getParameterTypes, getParseTimeInMillis, getResultDescription, getSource, getSPSName, isAtomic, referencesSessionSchema, rePrepare, upToDate

 

Methods inherited from interface org.apache.derby.iapi.sql.depend.Dependent

isValid, makeInvalid, makeValid, prepareToInvalidate

 

Methods inherited from interface org.apache.derby.catalog.Dependable

getClassType, getDependableFinder, getObjectID, getObjectName, isPersistent

 

Field Detail

byteCode

private org.apache.derby.iapi.util.ByteArray byteCode

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className

private java.lang.String className

Constructor Detail

GenericStorablePreparedStatement

public GenericStorablePreparedStatement()

Niladic constructor, for formatable only.

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GenericStorablePreparedStatement

GenericStorablePreparedStatement(org.apache.derby.iapi.sql.Statement stmt)

Method Detail

getByteCodeSaver

org.apache.derby.iapi.util.ByteArray getByteCodeSaver()

Get our byte code array. Used by others to save off our byte code for us.

Overrides:

getByteCodeSaver in class GenericPreparedStatement

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getActivationClass

public org.apache.derby.iapi.services.loader.GeneratedClass getActivationClass()
                                                                        throws org.apache.derby.iapi.error.StandardException

Get and load the activation class. Will always return a loaded/valid class or null if the class cannot be loaded.

Specified by:

getActivationClass in interface org.apache.derby.iapi.sql.execute.ExecPreparedStatement

Overrides:

getActivationClass in class GenericPreparedStatement

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setActivationClass

public void setActivationClass(org.apache.derby.iapi.services.loader.GeneratedClass ac)

Overrides:

setActivationClass in class GenericPreparedStatement

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loadGeneratedClass

public void loadGeneratedClass()
                        throws org.apache.derby.iapi.error.StandardException

Load up the class from the saved bytes.

Specified by:

loadGeneratedClass in interface org.apache.derby.iapi.sql.StorablePreparedStatement

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writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Description copied from interface: java.io.Externalizable

This method is responsible for writing the instance data of an object to the passed in stream. Note that this stream is not a subclass of OutputStream, but rather is a class that implements the ObjectOutput interface. That interface provides a number of methods for writing Java data values to a stream.

Not that the implementation of this method must be coordinated with the implementation of readExternal.

Specified by:

writeExternal in interface java.io.Externalizable

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readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Description copied from interface: java.io.Externalizable

This method restores an object's state by reading in the instance data for the object from the passed in stream. Note that this stream is not a subclass of InputStream, but rather is a class that implements the ObjectInput interface. That interface provides a mechanism for reading in Java data types from a stream.

Note that this method must be compatible with writeExternal. It must read back the exact same types that were written by that method in the exact order they were written.

If this method needs to read back an object instance, then the class for that object must be found and loaded. If that operation fails, then this method throws a ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

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getTypeFormatId

public int getTypeFormatId()

Get the formatID which corresponds to this class.

Specified by:

getTypeFormatId in interface org.apache.derby.iapi.services.io.TypedFormat

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isStorable

public boolean isStorable()

Overrides:

isStorable in class GenericPreparedStatement

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toString

public java.lang.String toString()

Description copied from class: java.lang.Object

Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() 55 and such.

It is typical, but not required, to ensure that this method never completes abruptly with a java.lang.RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).

Overrides:

toString in class GenericPreparedStatement

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> derby >> impl >> [ sql overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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