com.caucho.amber.expr

Class IdExpr

java.lang.Object

com.caucho.amber.expr.AbstractAmberExpr

com.caucho.amber.expr.AbstractPathExpr

com.caucho.amber.expr.IdExpr

All Implemented Interfaces:

AmberExpr, PathExpr

Direct Known Subclasses:

CollectionIdExpr

public class IdExpr
extends AbstractPathExpr

Bound identifier expression.

Field Summary

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

IS_INNER_JOIN, USES_DATA

Constructor Summary

Constructors

Constructor and Description
IdExpr(FromItem fromItem) 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	bindSubPath(QueryParser parser) Binds the expression as a select item.
LoadExpr	createLoad() Creates a load expression.
boolean	equals(java.lang.Object o)
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.
FromItem	getChildFromItem() Returns the from item
FromItem	getFromItem() Returns the from item
AmberBeanType	getTargetType() Returns the entity class.
int	hashCode()
AmberExpr	replaceJoin(JoinExpr join) Returns true if the expression uses the from item.
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.AbstractPathExpr

bindSelect, createArray, createField, createId

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

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

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

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

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

Constructor Detail

IdExpr

public IdExpr(FromItem fromItem)

Creates a new unbound id expression.

Method Detail

getFromItem

public FromItem getFromItem()

Returns the from item

getChildFromItem

public FromItem getChildFromItem()

Returns the from item

Specified by:

getChildFromItem in interface PathExpr

Overrides:

getChildFromItem in class AbstractPathExpr

getTargetType

public AmberBeanType getTargetType()

Returns the entity class.

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

bindSubPath

public FromItem bindSubPath(QueryParser parser)

Binds the expression as a select item.

Specified by:

bindSubPath in interface PathExpr

Overrides:

bindSubPath in class AbstractPathExpr

createLoad

public LoadExpr createLoad()

Creates a load expression.

Specified by:

createLoad in interface PathExpr

Overrides:

createLoad in class AbstractPathExpr

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

replaceJoin

public AmberExpr replaceJoin(JoinExpr join)

Returns true if the expression uses the from item.

Specified by:

replaceJoin in interface AmberExpr

Overrides:

replaceJoin 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

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object