org.teiid.translator.jdbc

Class SQLConversionVisitor

java.lang.Object

org.teiid.language.visitor.AbstractLanguageVisitor

org.teiid.language.visitor.SQLStringVisitor

org.teiid.translator.jdbc.SQLConversionVisitor

All Implemented Interfaces:

org.teiid.language.visitor.LanguageObjectVisitor, org.teiid.language.visitor.SQLStringVisitor.Substitutor

Direct Known Subclasses:

PISQLConversionVisitor, TeradataSQLConversionVisitor

public class SQLConversionVisitor
extends org.teiid.language.visitor.SQLStringVisitor
implements org.teiid.language.visitor.SQLStringVisitor.Substitutor

This visitor takes an ICommand and does DBMS-specific conversion on it to produce a SQL String. This class is expected to be subclassed.

Nested Class Summary

Nested classes/interfaces inherited from class org.teiid.language.visitor.SQLStringVisitor

org.teiid.language.visitor.SQLStringVisitor.Substitutor

Field Summary

Fields

Modifier and Type	Field and Description
static String	TEIID_NON_PREPARED

Fields inherited from class org.teiid.language.visitor.SQLStringVisitor

buffer, shortNameOnly, TEIID_NATIVE_QUERY, UNDEFINED, UNDEFINED_PARAM

Constructor Summary

Constructors

Constructor and Description
SQLConversionVisitor(JDBCExecutionFactory ef)

Method Summary

Modifier and Type	Method and Description
void	append(org.teiid.language.LanguageObject obj)
protected void	appendBaseName(org.teiid.language.NamedTable obj)
protected void	appendLateralKeyword()
protected void	appendSetOperation(org.teiid.language.SetQuery.Operation operation)
protected String	generateSqlForStoredProcedure(org.teiid.language.Call exec) This is a generic implementation.
protected org.teiid.translator.ExecutionContext	getExecutionContext() Retrieve the per-command execution context for this visitor (intended for subclasses to use).
protected String	getLikeRegexString()
protected String	getSourceComment(org.teiid.language.Command command)
static boolean	isNonAscii(String val)
boolean	isPrepared()
boolean	isUsingBinding()
protected String	removeCharacters(String value)
protected String	replaceElementName(String group, String element)
void	setExecutionContext(org.teiid.translator.ExecutionContext context) Set the per-command execution context on this visitor.
void	setPrepared(boolean prepared)
void	substitute(org.teiid.language.Argument arg, StringBuilder builder, int index)
protected void	translateSQLType(Class<?> type, Object obj, StringBuilder valuesbuffer)
protected boolean	useAsInGroupAlias()
protected boolean	useParensForJoins()
protected boolean	useParensForSetQueries()
protected boolean	useSelectLimit()
protected boolean	useUnicodePrefix()
void	visit(org.teiid.language.Call obj)
void	visit(org.teiid.language.Comparison obj)
void	visit(org.teiid.language.DerivedColumn obj)
void	visit(org.teiid.language.ExpressionValueSource obj)
void	visit(org.teiid.language.Function obj)
void	visit(org.teiid.language.GroupBy obj)
void	visit(org.teiid.language.In obj)
void	visit(org.teiid.language.Like obj)
void	visit(org.teiid.language.Literal obj)
void	visit(org.teiid.language.Parameter obj)
void	visit(org.teiid.language.SearchedCase obj)
void	visit(org.teiid.language.SetClause obj)

Methods inherited from class org.teiid.language.visitor.SQLStringVisitor

append, append, appendCallStart, appendLiteral, appendNestedCondition, appendQuantifier, appendRightComparison, appendSetQuery, appendWithKeyword, escapeString, getInsertKeyword, getName, getRecordName, getShortName, getSQLString, getUpsertKeyword, isInfixFunction, parseNativeQueryParts, shouldNestSetChild, toString, useParensForLHSJoins, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class org.teiid.language.visitor.AbstractLanguageVisitor

visit, visitNode, visitNodes, visitNodes

Methods inherited from class java.lang.Object

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

Field Detail

TEIID_NON_PREPARED

public static final String TEIID_NON_PREPARED

See Also:

Constant Field Values

Constructor Detail

SQLConversionVisitor

public SQLConversionVisitor(JDBCExecutionFactory ef)

Method Detail

append

public void append(org.teiid.language.LanguageObject obj)

Overrides:

append in class org.teiid.language.visitor.SQLStringVisitor

translateSQLType

protected void translateSQLType(Class<?> type,
                                Object obj,
                                StringBuilder valuesbuffer)

Parameters:

type -

object -

valuesbuffer -

isNonAscii

public static boolean isNonAscii(String val)

removeCharacters

protected String removeCharacters(String value)

useUnicodePrefix

protected boolean useUnicodePrefix()

visit

public void visit(org.teiid.language.Call obj)

Specified by:

visit in interface org.teiid.language.visitor.LanguageObjectVisitor

Overrides:

visit in class org.teiid.language.visitor.SQLStringVisitor

See Also:

SQLStringVisitor.visit(org.teiid.language.Call)

visit

public void visit(org.teiid.language.Function obj)

Specified by:

visit in interface org.teiid.language.visitor.LanguageObjectVisitor

Overrides:

visit in class org.teiid.language.visitor.SQLStringVisitor

visit

public void visit(org.teiid.language.Parameter obj)

Specified by:

visit in interface org.teiid.language.visitor.LanguageObjectVisitor

Overrides:

visit in class org.teiid.language.visitor.SQLStringVisitor

visit

public void visit(org.teiid.language.Literal obj)

Specified by:

visit in interface org.teiid.language.visitor.LanguageObjectVisitor

Overrides:

visit in class org.teiid.language.visitor.SQLStringVisitor

See Also:

SQLStringVisitor.visit(org.teiid.language.Literal)

visit

public void visit(org.teiid.language.In obj)

Specified by:

visit in interface org.teiid.language.visitor.LanguageObjectVisitor

Overrides:

visit in class org.teiid.language.visitor.SQLStringVisitor

visit

public void visit(org.teiid.language.Like obj)

Specified by:

visit in interface org.teiid.language.visitor.LanguageObjectVisitor

Overrides:

visit in class org.teiid.language.visitor.SQLStringVisitor

visit

public void visit(org.teiid.language.Comparison obj)

Specified by:

visit in interface org.teiid.language.visitor.LanguageObjectVisitor

Overrides:

visit in class org.teiid.language.visitor.SQLStringVisitor

visit

public void visit(org.teiid.language.ExpressionValueSource obj)

Specified by:

visit in interface org.teiid.language.visitor.LanguageObjectVisitor

Overrides:

visit in class org.teiid.language.visitor.SQLStringVisitor

visit

public void visit(org.teiid.language.SetClause obj)

Specified by:

visit in interface org.teiid.language.visitor.LanguageObjectVisitor

Overrides:

visit in class org.teiid.language.visitor.SQLStringVisitor

visit

public void visit(org.teiid.language.DerivedColumn obj)

Specified by:

visit in interface org.teiid.language.visitor.LanguageObjectVisitor

Overrides:

visit in class org.teiid.language.visitor.SQLStringVisitor

visit

public void visit(org.teiid.language.SearchedCase obj)

Specified by:

visit in interface org.teiid.language.visitor.LanguageObjectVisitor

Overrides:

visit in class org.teiid.language.visitor.SQLStringVisitor

setExecutionContext

public void setExecutionContext(org.teiid.translator.ExecutionContext context)

Set the per-command execution context on this visitor.

Parameters:

context - ExecutionContext

Since:

4.3

getExecutionContext

protected org.teiid.translator.ExecutionContext getExecutionContext()

Retrieve the per-command execution context for this visitor (intended for subclasses to use).

Returns:

Since:

4.3

getSourceComment

protected String getSourceComment(org.teiid.language.Command command)

Overrides:

getSourceComment in class org.teiid.language.visitor.SQLStringVisitor

generateSqlForStoredProcedure

protected String generateSqlForStoredProcedure(org.teiid.language.Call exec)

This is a generic implementation. Subclass should override this method if necessary.

Parameters:

exec - The command for the stored procedure.

Returns:

String to be executed by CallableStatement.

isPrepared

public boolean isPrepared()

setPrepared

public void setPrepared(boolean prepared)

isUsingBinding

public boolean isUsingBinding()

useAsInGroupAlias

protected boolean useAsInGroupAlias()

Overrides:

useAsInGroupAlias in class org.teiid.language.visitor.SQLStringVisitor

useParensForSetQueries

protected boolean useParensForSetQueries()

Overrides:

useParensForSetQueries in class org.teiid.language.visitor.SQLStringVisitor

replaceElementName

protected String replaceElementName(String group,
                                    String element)

Overrides:

replaceElementName in class org.teiid.language.visitor.SQLStringVisitor

appendSetOperation

protected void appendSetOperation(org.teiid.language.SetQuery.Operation operation)

Overrides:

appendSetOperation in class org.teiid.language.visitor.SQLStringVisitor

useParensForJoins

protected boolean useParensForJoins()

Overrides:

useParensForJoins in class org.teiid.language.visitor.SQLStringVisitor

useSelectLimit

protected boolean useSelectLimit()

Overrides:

useSelectLimit in class org.teiid.language.visitor.SQLStringVisitor

getLikeRegexString

protected String getLikeRegexString()

Overrides:

getLikeRegexString in class org.teiid.language.visitor.SQLStringVisitor

appendBaseName

protected void appendBaseName(org.teiid.language.NamedTable obj)

Overrides:

appendBaseName in class org.teiid.language.visitor.SQLStringVisitor

substitute

public void substitute(org.teiid.language.Argument arg,
                       StringBuilder builder,
                       int index)

Specified by:

substitute in interface org.teiid.language.visitor.SQLStringVisitor.Substitutor

visit

public void visit(org.teiid.language.GroupBy obj)

Specified by:

visit in interface org.teiid.language.visitor.LanguageObjectVisitor

Overrides:

visit in class org.teiid.language.visitor.SQLStringVisitor

appendLateralKeyword

protected void appendLateralKeyword()

Overrides:

appendLateralKeyword in class org.teiid.language.visitor.SQLStringVisitor