com.caucho.amber.expr

Class KeyPropertyExpr

java.lang.Object

com.caucho.amber.expr.AbstractAmberExpr

com.caucho.amber.expr.KeyPropertyExpr

All Implemented Interfaces:

AmberExpr, IdFieldExpr

public class KeyPropertyExpr
extends AbstractAmberExpr
implements IdFieldExpr

Bound identifier expression.

Field Summary

Fields

Modifier and Type	Field and Description
protected PathExpr	_parent

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

IS_INNER_JOIN, USES_DATA

Constructor Summary

Constructors

Constructor and Description
KeyPropertyExpr(PathExpr parent, KeyPropertyField field) Creates a new unbound id expression.

Method Summary

Modifier and Type	Method and Description
AmberExpr	bindSelect(QueryParser parser) Binds the expression as a select item.
FromItem	getChildFromItem() Returns the child from item.
AmberColumn	getColumn() Returns the parent expression.
KeyPropertyField	getField() Returns the parent expression.
PathExpr	getParent() Returns the parent expression.
AmberType	getType() Returns the expr type
java.lang.String	toString() Returns the field string.
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, generateHaving, generateJoin, generateSelect, generateUpdateWhere, generateWhere, getCacheObject, getColumnCount, getObject, hasRelationship, isBoolean, replaceJoin, setInternalArgType, usesFrom

Methods inherited from class java.lang.Object

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

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

createBoolean, exists, exists, findItem, generateHaving, generateJoin, generateSelect, generateUpdateWhere, generateWhere, getCacheObject, getObject, hasRelationship, isBoolean, replaceJoin, setInternalArgType, usesFrom

Field Detail

_parent

protected PathExpr _parent

Constructor Detail

KeyPropertyExpr

public KeyPropertyExpr(PathExpr parent,
                       KeyPropertyField field)

Creates a new unbound id expression.

Method Detail

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

getParent

public PathExpr getParent()

Returns the parent expression.

Specified by:

getParent in interface IdFieldExpr

getField

public KeyPropertyField getField()

Returns the parent expression.

Specified by:

getField in interface IdFieldExpr

getType

public AmberType getType()

Returns the expr type

Specified by:

getType in interface AmberExpr

Overrides:

getType in class AbstractAmberExpr

getColumn

public AmberColumn getColumn()

Returns the parent expression.

Specified by:

getColumn in interface IdFieldExpr

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

getChildFromItem

public FromItem getChildFromItem()

Returns the child from item. XXX: untested

toString

public java.lang.String toString()

Returns the field string.

Overrides:

toString in class java.lang.Object