com.caucho.amber.expr

Class UnaryExpr

java.lang.Object

com.caucho.amber.expr.AbstractAmberExpr

com.caucho.amber.expr.UnaryExpr

All Implemented Interfaces:

AmberExpr

public class UnaryExpr
extends AbstractAmberExpr

Unary expression.

Field Summary

Fields inherited from interface com.caucho.amber.expr.AmberExpr

IS_INNER_JOIN, USES_DATA

Constructor Summary

Constructors

Constructor and Description
UnaryExpr(int token, AmberExpr expr) Creates a new unary expression

Method Summary

Modifier and Type	Method and Description
AmberExpr	bindSelect(QueryParser parser) Binds the expression as a select item.
void	generateHaving(CharBuffer cb) Generates the having expression.
void	generateUpdateWhere(CharBuffer cb) Generates the (update) where expression.
void	generateWhere(CharBuffer cb) Generates the where expression.
java.lang.Class	getJavaType() Returns the java type.
boolean	isBoolean() Returns true for a boolean expr.
java.lang.String	toString()
boolean	usesFrom(FromItem from, int type, boolean isNot) Returns true if the expression uses the from item.

Methods inherited from class com.caucho.amber.expr.AbstractAmberExpr

createBoolean, exists, exists, findItem, generateJoin, generateSelect, getCacheObject, getColumnCount, getObject, getType, hasRelationship, replaceJoin, setInternalArgType, usesFrom

Methods inherited from class java.lang.Object

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

Constructor Detail

UnaryExpr

public UnaryExpr(int token,
                 AmberExpr expr)

Creates a new unary expression

Method Detail

isBoolean

public boolean isBoolean()

Returns true for a boolean expr.

Specified by:

isBoolean in interface AmberExpr

Overrides:

isBoolean in class AbstractAmberExpr

getJavaType

public java.lang.Class getJavaType()

Returns the java type.

bindSelect

public AmberExpr bindSelect(QueryParser parser)

Binds the expression as a select item.

Specified by:

bindSelect in interface AmberExpr

Specified by:

bindSelect in class AbstractAmberExpr

usesFrom

public boolean usesFrom(FromItem from,
                        int type,
                        boolean isNot)

Returns true if the expression uses the from item.

Specified by:

usesFrom in interface AmberExpr

Overrides:

usesFrom in class AbstractAmberExpr

generateWhere

public void generateWhere(CharBuffer cb)

Generates the where expression.

Specified by:

generateWhere in interface AmberExpr

Overrides:

generateWhere in class AbstractAmberExpr

generateUpdateWhere

public void generateUpdateWhere(CharBuffer cb)

Generates the (update) where expression.

Specified by:

generateUpdateWhere in interface AmberExpr

Overrides:

generateUpdateWhere in class AbstractAmberExpr

generateHaving

public void generateHaving(CharBuffer cb)

Generates the having expression.

Specified by:

generateHaving in interface AmberExpr

Overrides:

generateHaving in class AbstractAmberExpr

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object