ajax.catalog
Class Merging

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

All Implemented Interfaces:

CatalogObject

public class Merging

extends Transformation

Field Summary

static java.lang.String	closeWrapperCIdStr
static java.lang.String	endFirstIfStr
static java.lang.String	endSecondIfStr
static java.lang.String	endWhileLetStr
static java.lang.String	fileWrapperCIdStr
static java.lang.String	jdbcWrapperCIdStr Generated code

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

Merging()

Method Summary

void	init(java.lang.String name, java.util.LinkedList output, java.util.List from, Expression algo, java.util.LinkedList let, Expression where) Fills in the components of the merging transformation
protected void	setExceptionOutput() Defines the output associated to the exception table for the case of a Merging Transformation.
void	split() Splits this transformation into transformations that can be implemented entirely in Java or entirely in SQL IMPLEMENT THIS
java.lang.String	toHtml() Converts the merging into an Html read-able object.
void	toJavaBody(java.io.Writer outStream, Table[] matTable, java.lang.String spaces) Generates code for executing the body of the transformation
void	toJavaFromInput(java.io.Writer outStream) Generates code for reading the input of the transformation from a table
java.lang.String	toString() Converts the merging into a human read-able 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, initialize, isClustering, isFromTable, isLetOptimizableDE, isLetToSQL, isMapping, isMatching, isMerging, isToSQL, isToTable, isTransformation, isView, KeyExceptionToJava, letToJava, load, main, openFile, outerOutputIter, selectToJava, selectToSQL, selectToSQLToTable, setFromFile, setFromTable, setName, setOuterOutput, setToFile, setToJava, setToSQL, setToTable, setWeaveOutputsSchemas, setWeaveRunTimePolicies, toJava, toJavaBody, toJavaQuery, toSQL, toTableQuery, updateAuxiliaryFunctions, whereToJava, whereToSQL, writeCollection, writeHtmlCollection, writeTailClass

Methods inherited from class java.lang.Object

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

Field Detail

jdbcWrapperCIdStr

public static final java.lang.String jdbcWrapperCIdStr

Generated code

fileWrapperCIdStr

public static final java.lang.String fileWrapperCIdStr

endWhileLetStr

public static final java.lang.String endWhileLetStr

endFirstIfStr

public static final java.lang.String endFirstIfStr

endSecondIfStr

public static final java.lang.String endSecondIfStr

closeWrapperCIdStr

public static final java.lang.String closeWrapperCIdStr

Constructor Detail

Merging

public Merging()

Method Detail

init

public void init(java.lang.String name,
                 java.util.LinkedList output,
                 java.util.List from,
                 Expression algo,
                 java.util.LinkedList let,
                 Expression where)
          throws CatalogException,
                 AjaxTypeException

Fills in the components of the merging transformation

Overrides:

init in class Transformation

setExceptionOutput

protected void setExceptionOutput()
                           throws CatalogException,
                                  AjaxTypeException

Defines the output associated to the exception table for the case of a Merging Transformation. In this case we just consider the clusterId key field of the input transformation and the exceptionInfo field as being part of the schema of the exception table.

Overrides:

setExceptionOutput in class Transformation

toJavaFromInput

public void toJavaFromInput(java.io.Writer outStream)
                     throws CatalogException,
                            java.io.IOException,
                            ExpressionException,
                            AjaxTypeException

Generates code for reading the input of the transformation from a table

Overrides:

toJavaFromInput in class Transformation

toJavaBody

public void toJavaBody(java.io.Writer outStream,
                       Table[] matTable,
                       java.lang.String spaces)
                throws CatalogException,
                       java.io.IOException,
                       ExpressionException,
                       AjaxTypeException

Generates code for executing the body of the transformation

split

public void split()

Splits this transformation into transformations that can be implemented entirely in Java or entirely in SQL IMPLEMENT THIS

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 the merging into a human read-able object.

Overrides:

toString in class Transformation

toHtml

public java.lang.String toHtml()

Converts the merging into an Html read-able object.

Overrides:

toHtml in class Transformation