ajax.catalog
Class UnionView

java.lang.Object
  |
  +--ajax.catalog.Transformation
        |
        +--ajax.catalog.UnionView

All Implemented Interfaces:

CatalogObject

public class UnionView

extends Transformation

Fields inherited from class ajax.catalog.Transformation

CLUST, DBTransferStr, dirExec, dirFiles, dirFunctions, embeddedOutput, endEvaluateHeader, evaluateHeader, evaluateTail, exceptionOutput, FROM_FILE, FROM_TABLE, generatedCodeType, ifTail, importIOException, importList, importRunnableTransf, importSqlException, importSqlResultSet, importWrapperException, importWrapperManager, inputType, JAVA_CODE, MAPP, MATCH, MERG, newLine, outerOutput, outputType, SQL_CODE, tail, TO_FILE, TO_TABLE, transfType, VIEW, wrapperInitialization

Constructor Summary

UnionView(java.lang.String name)
The constructor of a UnionView Transformation.

Method Summary

void	addComponent(View view) Initialization methods for setting the components of this transformation
void	init(java.util.List key) Set the key fields of this transformation and defines also the the exceptionOutput object associated to this transformation. we are supposing that the key field of each view component is presented in the key of the Unionview transformation.
boolean	isLetToSQL() Checks if the LET clause of each view component of this transformation can be converted to a SQL statement.
void	setFromFile() Sets the transformation to read the input from a file.
void	setFromTable() Sets the transformation to read the input from a file.
void	setToFile() Sets the transformation to write the output into a file
void	setToJava() Sets the execution mode to Java
void	setToSQL() Sets the execution mode to SQL
void	setToTable() Sets this transformation (and corresponding views components) to write the output into a file.
java.lang.String	toHtml() Converts this transformation into html readable object.
void	toJava() Generates a Java class that issues SQL calls, through JDBC, to get the data from the database and store the results back.
void	toSQL() Generates a Java class that issues only SQL calls, through JDBC, for implementing the transformation
java.lang.String	toString() Converts this transformation into a human readable object.
void	toXML(java.lang.String XMLfileName) Converts the transformation into an XML document

Methods inherited from class ajax.catalog.Transformation

addAsList, addEmbeddedQuery, closeFile, closeOutputFiles, closeOutputJdbc, createOutputFiles, createOutputTables, declareTransfer, doOuterJoinInSQL, dump, dumpQuery, exceptionsToJava, fromToSQL, getAllOutputNames, getExceptionsLet, getExceptionTable, getFields, getFieldType, getFrom, getIndex, getIndexAttribute, getInputNames, getInputTable, getKey, getKeyAs, getLet, getMatTable, getName, getOutput, getOutput, getOutputException, getOutputNames, getOutputSize, getOutputTable, getTable, getTransfType, getWhere, hasNullConstraint, init, initialize, isClustering, isFromTable, isLetOptimizableDE, isMapping, isMatching, isMerging, isToSQL, isToTable, isTransformation, isView, KeyExceptionToJava, letToJava, load, main, openFile, outerOutputIter, selectToJava, selectToSQL, selectToSQLToTable, setExceptionOutput, setName, setOuterOutput, setWeaveOutputsSchemas, setWeaveRunTimePolicies, toJavaBody, toJavaFromInput, toJavaQuery, toTableQuery, updateAuxiliaryFunctions, whereToJava, whereToSQL, writeCollection, writeHtmlCollection, writeTailClass

Methods inherited from class java.lang.Object

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

Constructor Detail

UnionView

public UnionView(java.lang.String name)

The constructor of a UnionView Transformation.

Method Detail

init

public final void init(java.util.List key)
                throws AjaxTypeException

Set the key fields of this transformation and defines also the the exceptionOutput object associated to this transformation. we are supposing that the key field of each view component is presented in the key of the Unionview transformation.

addComponent

public void addComponent(View view)

Initialization methods for setting the components of this transformation

setToSQL

public void setToSQL()

Sets the execution mode to SQL

Overrides:

setToSQL in class Transformation

setToJava

public void setToJava()

Sets the execution mode to Java

Overrides:

setToJava in class Transformation

setToTable

public void setToTable()

Sets this transformation (and corresponding views components) to write the output into a file.

Overrides:

setToTable in class Transformation

setToFile

public void setToFile()

Sets the transformation to write the output into a file

Overrides:

setToFile in class Transformation

setFromFile

public void setFromFile()

Sets the transformation to read the input from a file.

Overrides:

setFromFile in class Transformation

setFromTable

public void setFromTable()

Sets the transformation to read the input from a file.

Overrides:

setFromTable in class Transformation

toSQL

public void toSQL()
           throws CatalogException,
                  java.io.IOException,
                  AjaxTypeException

Generates a Java class that issues only SQL calls, through JDBC, for implementing the transformation

Overrides:

toSQL in class Transformation

isLetToSQL

public boolean isLetToSQL()

Checks if the LET clause of each view component of this transformation can be converted to a SQL statement.

Overrides:

isLetToSQL in class Transformation

toJava

public void toJava()
            throws CatalogException,
                   java.io.IOException,
                   ExpressionException,
                   AjaxTypeException

Generates a Java class that issues SQL calls, through JDBC, to get the data from the database and store the results back. The execution of the transformation is done in Java

Overrides:

toJava in class Transformation

toXML

public void toXML(java.lang.String XMLfileName)

Converts the transformation into an XML document

Overrides:

toXML in class Transformation

toString

public java.lang.String toString()

Converts this transformation into a human readable object.

Overrides:

toString in class Transformation

toHtml

public java.lang.String toHtml()

Converts this transformation into html readable object.

Overrides:

toHtml in class Transformation