Package org.apache.calcite.linq4j.tree

Class ExpressionWriter

java.lang.Object

org.apache.calcite.linq4j.tree.ExpressionWriter

class ExpressionWriter
extends Object

Converts an expression to Java code.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	ExpressionWriter.Indent	Helps generate strings of spaces, to indent text.

Field Summary

Fields

Modifier and Type	Field	Description
private StringBuilder	buf
private boolean	generics
private String	indent
(package private) static ExpressionWriter.Indent	INDENT
private boolean	indentPending
private int	level

Constructor Summary

Constructors

Constructor	Description
ExpressionWriter()
ExpressionWriter(boolean generics)

Method Summary

Modifier and Type	Method	Description
ExpressionWriter	append(char c)
ExpressionWriter	append(Object o)
ExpressionWriter	append(Type type)
ExpressionWriter	append(String s)
ExpressionWriter	append(AbstractNode o)
void	backUp()
void	begin()	Increases the indentation level.
ExpressionWriter	begin(String s)
private void	checkIndent()
void	end()	Decreases the indentation level.
ExpressionWriter	end(String s)
StringBuilder	getBuf()
ExpressionWriter	indent()
ExpressionWriter	list(String begin, String sep, String end, Iterable<?> list)
ExpressionWriter	newlineAndIndent()
boolean	requireParentheses(Expression expression, int lprec, int rprec)	If parentheses are required, writes this expression out with parentheses and returns true.
String	toString()
void	write(Node expression)

Methods inherited from class java.lang.Object

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

Field Detail

INDENT

static final ExpressionWriter.Indent INDENT

buf

private final StringBuilder buf

level

private int level

indent

private String indent

indentPending

private boolean indentPending

generics

private final boolean generics

Constructor Detail

ExpressionWriter

ExpressionWriter()

ExpressionWriter

ExpressionWriter(boolean generics)

Method Detail

write

public void write(Node expression)

toString

public String toString()

Overrides:

toString in class Object

requireParentheses

public boolean requireParentheses(Expression expression,
                                  int lprec,
                                  int rprec)

If parentheses are required, writes this expression out with parentheses and returns true. If they are not required, does nothing and returns false.

begin

public void begin()

Increases the indentation level.

end

public void end()

Decreases the indentation level.

newlineAndIndent

public ExpressionWriter newlineAndIndent()

indent

public ExpressionWriter indent()

begin

public ExpressionWriter begin(String s)

end

public ExpressionWriter end(String s)

append

public ExpressionWriter append(char c)

append

public ExpressionWriter append(Type type)

append

public ExpressionWriter append(AbstractNode o)

append

public ExpressionWriter append(Object o)

append

public ExpressionWriter append(String s)

checkIndent

private void checkIndent()

getBuf

public StringBuilder getBuf()

list

public ExpressionWriter list(String begin,
                             String sep,
                             String end,
                             Iterable<?> list)

backUp

public void backUp()