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java.lang.Objectcom.caucho.amber.expr.AbstractAmberExpr
com.caucho.amber.expr.BooleanColumnExpr
public class BooleanColumnExpr
AmberColumn expression returning a boolean
Field Summary | |
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protected FromItem |
_fromItem
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protected PathExpr |
_parent
|
Fields inherited from interface com.caucho.amber.expr.AmberExpr |
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IS_INNER_JOIN, USES_DATA |
Constructor Summary | |
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BooleanColumnExpr(PathExpr parent,
AmberColumn column)
Creates a new unbound id expression. |
Method Summary | |
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AmberExpr |
bindSelect(QueryParser parser)
Binds the expression as a select item. |
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. |
boolean |
isBoolean()
Returns true for a boolean. |
AmberExpr |
replaceJoin(JoinExpr join)
Replaces linked join to eliminate a table. |
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 |
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createBoolean, exists, exists, findItem, generateJoin, generateSelect, getCacheObject, getColumnCount, getObject, getType, hasRelationship, setInternalArgType, usesFrom |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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protected PathExpr _parent
protected FromItem _fromItem
Constructor Detail |
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public BooleanColumnExpr(PathExpr parent, AmberColumn column)
Method Detail |
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public boolean isBoolean()
isBoolean
in interface AmberExpr
isBoolean
in class AbstractAmberExpr
public AmberExpr bindSelect(QueryParser parser)
bindSelect
in interface AmberExpr
bindSelect
in class AbstractAmberExpr
public boolean usesFrom(FromItem from, int type, boolean isNot)
usesFrom
in interface AmberExpr
usesFrom
in class AbstractAmberExpr
public AmberExpr replaceJoin(JoinExpr join)
replaceJoin
in interface AmberExpr
replaceJoin
in class AbstractAmberExpr
public void generateWhere(CharBuffer cb)
generateWhere
in interface AmberExpr
generateWhere
in class AbstractAmberExpr
public void generateUpdateWhere(CharBuffer cb)
generateUpdateWhere
in interface AmberExpr
generateUpdateWhere
in class AbstractAmberExpr
public void generateHaving(CharBuffer cb)
generateHaving
in interface AmberExpr
generateHaving
in class AbstractAmberExpr
public java.lang.String toString()
toString
in class java.lang.Object
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