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.

Field Summary

Fields

Modifier and Type	Field and Description
private StringBuilder	buf
private boolean	generics
private static int	INDENT How many spaces to indent Java code.
private boolean	indentPending
private org.apache.calcite.avatica.util.Spacer	spacer

Constructor Summary

Constructors

Constructor and Description
ExpressionWriter()
ExpressionWriter(boolean generics)

Method Summary

Modifier and Type	Method and Description
ExpressionWriter	append(AbstractNode o)
ExpressionWriter	append(char c)
ExpressionWriter	append(Object o)
ExpressionWriter	append(String s)
ExpressionWriter	append(Type type)
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

private static final int INDENT

How many spaces to indent Java code.

See Also:

Constant Field Values

spacer

private final org.apache.calcite.avatica.util.Spacer spacer

buf

private final StringBuilder buf

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()