org.apache.tika.pipes.emitter.jdbc

Class JDBCEmitter

java.lang.Object

org.apache.tika.pipes.emitter.AbstractEmitter

org.apache.tika.pipes.emitter.jdbc.JDBCEmitter

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.tika.config.Initializable, org.apache.tika.pipes.emitter.Emitter

public class JDBCEmitter
extends org.apache.tika.pipes.emitter.AbstractEmitter
implements org.apache.tika.config.Initializable, Closeable

This is only an initial, basic implementation of an emitter for JDBC.

It is currently NOT thread safe because of the shared prepared statement, and depending on the jdbc implementation because of the shared connection.

As of the 2.5.0 release, this is ALPHA version. There may be breaking changes in the future.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	JDBCEmitter.AttachmentStrategy

Constructor Summary

Constructors

Constructor and Description
JDBCEmitter()

Method Summary

Modifier and Type	Method and Description
void	checkInitialization(org.apache.tika.config.InitializableProblemHandler problemHandler)
void	close()
void	emit(List<? extends org.apache.tika.pipes.emitter.EmitData> emitData)
void	emit(String emitKey, List<org.apache.tika.metadata.Metadata> metadataList) This executes the emit with each call.
void	initialize(Map<String,org.apache.tika.config.Param> params)
void	setAlterTable(String alterTable) This is called immediately after the table is created.
void	setAttachmentStrategy(JDBCEmitter.AttachmentStrategy attachmentStrategy)
void	setAttachmentStrategy(String attachmentStrategy)
void	setConnection(String connectionString)
void	setCreateTable(String createTable)
void	setInsert(String insert)
void	setKeys(Map<String,String> keys) The implementation of keys should be a LinkedHashMap because order matters!

Methods inherited from class org.apache.tika.pipes.emitter.AbstractEmitter

getName, setName

Methods inherited from class java.lang.Object

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

Constructor Detail

JDBCEmitter

public JDBCEmitter()

Method Detail

setAlterTable

public void setAlterTable(String alterTable)

This is called immediately after the table is created. The purpose of this is to allow for adding a complex primary key or other constraint on the table after it is created.

Parameters:

alterTable -

setCreateTable

@Field
public void setCreateTable(String createTable)

setInsert

@Field
public void setInsert(String insert)

setConnection

@Field
public void setConnection(String connectionString)

setKeys

@Field
public void setKeys(Map<String,String> keys)

The implementation of keys should be a LinkedHashMap because order matters!

Key is the name of the metadata field, value is the type of column: boolean, string, int, long

Parameters:

keys -

setAttachmentStrategy

public void setAttachmentStrategy(JDBCEmitter.AttachmentStrategy attachmentStrategy)

setAttachmentStrategy

@Field
public void setAttachmentStrategy(String attachmentStrategy)

emit

public void emit(String emitKey,
                 List<org.apache.tika.metadata.Metadata> metadataList)
          throws IOException,
                 org.apache.tika.pipes.emitter.TikaEmitterException

This executes the emit with each call. For more efficient batch execution use emit(List).

Specified by:

emit in interface org.apache.tika.pipes.emitter.Emitter

Parameters:

emitKey - emit key

metadataList - list of metadata per file

Throws:

IOException

org.apache.tika.pipes.emitter.TikaEmitterException

emit

public void emit(List<? extends org.apache.tika.pipes.emitter.EmitData> emitData)
          throws IOException,
                 org.apache.tika.pipes.emitter.TikaEmitterException

Specified by:

emit in interface org.apache.tika.pipes.emitter.Emitter

Overrides:

emit in class org.apache.tika.pipes.emitter.AbstractEmitter

Throws:

IOException

org.apache.tika.pipes.emitter.TikaEmitterException

initialize

public void initialize(Map<String,org.apache.tika.config.Param> params)
                throws org.apache.tika.exception.TikaConfigException

Specified by:

initialize in interface org.apache.tika.config.Initializable

Throws:

org.apache.tika.exception.TikaConfigException

checkInitialization

public void checkInitialization(org.apache.tika.config.InitializableProblemHandler problemHandler)
                         throws org.apache.tika.exception.TikaConfigException

Specified by:

checkInitialization in interface org.apache.tika.config.Initializable

Throws:

org.apache.tika.exception.TikaConfigException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException