Package com.exasol.sql.rendering

Class AbstractFragmentRenderer

java.lang.Object

com.exasol.sql.rendering.AbstractFragmentRenderer

All Implemented Interfaces:

FragmentRenderer

Direct Known Subclasses:

ColumnsDefinitionRenderer, CreateSchemaRenderer, CreateTableRenderer, DropSchemaRenderer, DropTableRenderer, InsertRenderer, MergeRenderer, SelectRenderer

public abstract class AbstractFragmentRenderer
extends Object
implements FragmentRenderer

Abstract base class for SQL fragment renderers.

Field Summary

Fields

Modifier and Type	Field	Description
protected StringRendererConfig	config	Configuration that controls string rendering options.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractFragmentRenderer(StringRendererConfig config)	Create a new instance of an AbstractFragmentRenderer-based class.

Method Summary

Modifier and Type	Method	Description
protected void	append(int number)	Append on integer number.
protected StringBuilder	append(String string)	Append a string.
protected void	appendAutoQuoted(String identifier)	Append an auto-quoted SQL identifier.
protected void	appendCommaWhenNeeded(Fragment fragment)	Append a comma where necessary.
protected void	appendKeyWord(String keyword)	Append an unquoted SQL keyword.
protected void	appendListOfValueExpressions(List<? extends ValueExpression> valueExpressions)	Append a list of value expressions.
protected void	appendRenderedValueExpression(ValueExpression expression)	Append a value expression that has already been rendered.
protected void	appendSpace()	Append a white space.
protected void	appendValueTableRow(ValueTableRow valueTableRow)	Append a row of a value table (SELECT ... FROM VALUES).
protected void	endParenthesis()	End a parenthesis.
String	render()	Render an SQL statement to a string.
protected void	setLastVisited(Fragment fragment)	Set the last statement fragment that was visited.
protected void	startParenthesis()	Start a parenthesis.

Methods inherited from class java.lang.Object

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

Field Detail

config

protected final StringRendererConfig config

Configuration that controls string rendering options.

Constructor Detail

AbstractFragmentRenderer

protected AbstractFragmentRenderer(StringRendererConfig config)

Create a new instance of an AbstractFragmentRenderer-based class.

Parameters:

config - renderer configuration

Method Detail

appendKeyWord

protected void appendKeyWord(String keyword)

Append an unquoted SQL keyword.

Parameters:

keyword - SQL keyword

startParenthesis

protected void startParenthesis()

Start a parenthesis.

endParenthesis

protected void endParenthesis()

End a parenthesis.

appendRenderedValueExpression

protected void appendRenderedValueExpression(ValueExpression expression)

Append a value expression that has already been rendered.

Parameters:

expression - pre-rendered expression

appendListOfValueExpressions

protected void appendListOfValueExpressions(List<? extends ValueExpression> valueExpressions)

Append a list of value expressions.

Parameters:

valueExpressions - value expressions

append

protected StringBuilder append(String string)

Append a string.

Parameters:

string - string to append

Returns:

string builder

setLastVisited

protected void setLastVisited(Fragment fragment)

Set the last statement fragment that was visited.

Parameters:

fragment - last visited fragment

appendSpace

protected void appendSpace()

Append a white space.

appendCommaWhenNeeded

protected void appendCommaWhenNeeded(Fragment fragment)

Append a comma where necessary.

Parameters:

fragment - fragment that might need a comma to separate it from the previous one

append

protected void append(int number)

Append on integer number.

Parameters:

number - number to append

appendAutoQuoted

protected void appendAutoQuoted(String identifier)

Append an auto-quoted SQL identifier.

Parameters:

identifier - SQL identifier to append

appendValueTableRow

protected void appendValueTableRow(ValueTableRow valueTableRow)

Append a row of a value table (SELECT ... FROM VALUES).

Parameters:

valueTableRow - row of a value table

render

public String render()

Description copied from interface: FragmentRenderer

Render an SQL statement to a string.

Specified by:

render in interface FragmentRenderer

Returns:

rendered string