com.caucho.amber.expr

Class KeyColumnExpr

java.lang.Object

com.caucho.amber.expr.AbstractAmberExpr

com.caucho.amber.expr.AmberColumnExpr

com.caucho.amber.expr.KeyColumnExpr

All Implemented Interfaces:

AmberExpr

public class KeyColumnExpr
extends AmberColumnExpr

Bound identifier expression.

Field Summary

Fields inherited from class com.caucho.amber.expr.AmberColumnExpr

_fromItem, _parent

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

IS_INNER_JOIN, USES_DATA

Constructor Summary

Constructors

Constructor and Description
KeyColumnExpr(PathExpr parent, AmberColumn column) Creates a new unbound id expression.

Method Summary

Modifier and Type	Method and Description
AmberExpr	replaceJoin(JoinExpr join) Replaces linked join to eliminate a table.
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.AmberColumnExpr

bindSelect, createBoolean, generateHaving, generateUpdateWhere, generateWhere, getColumn, getParent, getType, hasRelationship, toString

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

exists, exists, findItem, generateJoin, generateSelect, getCacheObject, getColumnCount, getObject, isBoolean, setInternalArgType, usesFrom

Methods inherited from class java.lang.Object

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

Constructor Detail

KeyColumnExpr

public KeyColumnExpr(PathExpr parent,
                     AmberColumn column)

Creates a new unbound id expression.

Method Detail

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 AmberColumnExpr

replaceJoin

public AmberExpr replaceJoin(JoinExpr join)

Replaces linked join to eliminate a table.

Specified by:

replaceJoin in interface AmberExpr

Overrides:

replaceJoin in class AmberColumnExpr