com.caucho.amber.expr

Class OneToManyJoinExpr

java.lang.Object

com.caucho.amber.expr.AbstractAmberExpr

com.caucho.amber.expr.JoinExpr

com.caucho.amber.expr.OneToManyJoinExpr

All Implemented Interfaces:

AmberExpr

public class OneToManyJoinExpr
extends JoinExpr

Joins two tables as "a.children".

Field Summary

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

IS_INNER_JOIN, USES_DATA

Constructor Summary

Constructors

Constructor and Description
OneToManyJoinExpr(LinkColumns linkColumns, FromItem source, FromItem target) Creates the expr.

Method Summary

Modifier and Type	Method and Description
AmberExpr	bindSelect(QueryParser parser) Binds the expression as a select item.
boolean	bindToFromItem() Binds the link to the from item.
boolean	equals(java.lang.Object o) Test for equality.
void	generateHaving(CharBuffer cb) Generates the having expression.
void	generateJoin(CharBuffer cb) Generates the where expression.
void	generateUpdateWhere(CharBuffer cb) Generates the (update) where expression.
void	generateWhere(CharBuffer cb) Generates the where expression.
FromItem	getJoinParent() Returns the parent join clause, i.e.
FromItem	getJoinTarget() Returns the target join clause.
AmberExpr	getWhere() Returns the where clause once the parent is removed
boolean	isBoolean() Returns true for a boolean expression.
AmberExpr	replace(IdExpr id) Returns the id expr with the joined expression.
AmberExpr	replace(KeyColumnExpr id) Returns the id expr with the joined expression.
java.lang.String	toString()

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

isDependent

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

OneToManyJoinExpr

public OneToManyJoinExpr(LinkColumns linkColumns,
                         FromItem source,
                         FromItem target)

Creates the expr.

Method Detail

isBoolean

public boolean isBoolean()

Returns true for a boolean expression.

Specified by:

isBoolean in interface AmberExpr

Overrides:

isBoolean in class JoinExpr

bindSelect

public AmberExpr bindSelect(QueryParser parser)

Binds the expression as a select item.

Specified by:

bindSelect in interface AmberExpr

Overrides:

bindSelect in class JoinExpr

bindToFromItem

public boolean bindToFromItem()

Binds the link to the from item.

Overrides:

bindToFromItem in class JoinExpr

getJoinTarget

public FromItem getJoinTarget()

Returns the target join clause.

Overrides:

getJoinTarget in class JoinExpr

getJoinParent

public FromItem getJoinParent()

Returns the parent join clause, i.e. the first in the FROM order.

 FROM o, o.children
 

Overrides:

getJoinParent in class JoinExpr

replace

public AmberExpr replace(KeyColumnExpr id)

Returns the id expr with the joined expression.

Overrides:

replace in class JoinExpr

replace

public AmberExpr replace(IdExpr id)

Returns the id expr with the joined expression.

Overrides:

replace in class JoinExpr

getWhere

public AmberExpr getWhere()

Returns the where clause once the parent is removed

Overrides:

getWhere in class JoinExpr

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

generateJoin

public void generateJoin(CharBuffer cb)

Generates the where expression.

Specified by:

generateJoin in interface AmberExpr

Overrides:

generateJoin in class AbstractAmberExpr

equals

public boolean equals(java.lang.Object o)

Test for equality.

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object