com.caucho.amber.expr

Class LoadExpr

java.lang.Object

com.caucho.amber.expr.AbstractAmberExpr

com.caucho.amber.expr.LoadExpr

All Implemented Interfaces:

AmberExpr

Direct Known Subclasses:

LoadBasicExpr, LoadEmbeddedExpr, LoadEntityExpr

public abstract class LoadExpr
extends AbstractAmberExpr

An embedded or entity expression which should be loaded.

Field Summary

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

IS_INNER_JOIN, USES_DATA

Method Summary

Modifier and Type	Method and Description
FromItem	bindSubPath(QueryParser parser) Binds the expression as a select item.
static LoadExpr	create(PathExpr expr)
static LoadExpr	create(PathExpr expr, FromItem rootItem)
void	generateHaving(CharBuffer cb, java.lang.String fieldName) Generates the having expression.
void	generateSelect(CharBuffer cb) Generates the where expression.
void	generateSelect(CharBuffer cb, boolean fullSelect) Generates the where expression.
void	generateUpdateWhere(CharBuffer cb, java.lang.String fieldName) Generates the (update) where expression.
void	generateWhere(CharBuffer cb, java.lang.String fieldName) Generates the where expression.
FromItem	getChildFromItem() Returns the from item
PathExpr	getExpr() Returns the underlying expression
int	getIndex() Returns the number of columns consumed from a result set after loading the entity.
java.lang.String	getTable() Returns the table.
AmberType	getType() Returns the type.
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

bindSelect, createBoolean, exists, exists, findItem, generateHaving, generateJoin, 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

Method Detail

create

public static LoadExpr create(PathExpr expr)

create

public static LoadExpr create(PathExpr expr,
                              FromItem rootItem)

getType

public AmberType getType()

Returns the type.

Specified by:

getType in interface AmberExpr

Overrides:

getType in class AbstractAmberExpr

getExpr

public PathExpr getExpr()

Returns the underlying expression

getIndex

public int getIndex()

Returns the number of columns consumed from a result set after loading the entity.

getTable

public java.lang.String getTable()

Returns the table.

bindSubPath

public FromItem bindSubPath(QueryParser parser)

Binds the expression as a select item.

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 from item

generateSelect

public void generateSelect(CharBuffer cb)

Generates the where expression.

Specified by:

generateSelect in interface AmberExpr

Overrides:

generateSelect in class AbstractAmberExpr

generateSelect

public void generateSelect(CharBuffer cb,
                           boolean fullSelect)

Generates the where expression.

generateWhere

public void generateWhere(CharBuffer cb,
                          java.lang.String fieldName)

Generates the where expression.

generateUpdateWhere

public void generateUpdateWhere(CharBuffer cb,
                                java.lang.String fieldName)

Generates the (update) where expression.

generateHaving

public void generateHaving(CharBuffer cb,
                           java.lang.String fieldName)

Generates the having expression.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object