com.caucho.amber.expr
Class LiteralExpr

java.lang.Object
  com.caucho.amber.expr.AbstractAmberExpr
      com.caucho.amber.expr.LiteralExpr

All Implemented Interfaces:

AmberExpr

public class LiteralExpr
extends AbstractAmberExpr

Literal expression for Amber.

Field Summary

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

IS_INNER_JOIN, USES_DATA

Constructor Summary

LiteralExpr(QueryParser parser, java.lang.String value, java.lang.Class javaType)
Creates a new literal expression.

Method Summary

AmberExpr	bindSelect(QueryParser parser) Binds the expression as a select item.
boolean	exists() Returns true if the expression must exist
void	generateHaving(CharBuffer cb) Generates the having expression.
void	generateUpdateWhere(CharBuffer cb) Generates the (update) literal.
void	generateWhere(CharBuffer cb) Generates the literal.
java.lang.Class	getJavaType() Returns the java type
java.lang.String	getValue() Returns the literal value
java.lang.String	toString()

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

LiteralExpr

public LiteralExpr(QueryParser parser,
                   java.lang.String value,
                   java.lang.Class javaType)

Creates a new literal expression.

Parameters:

value - the string value of the literal

type - the java type of the literal

Method Detail

getJavaType

public java.lang.Class getJavaType()

Returns the java type

getValue

public java.lang.String getValue()

Returns the literal value

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

exists

public boolean exists()

Returns true if the expression must exist

Specified by:

exists in interface AmberExpr

Overrides:

exists in class AbstractAmberExpr

generateWhere

public void generateWhere(CharBuffer cb)

Generates the literal.

Specified by:

generateWhere in interface AmberExpr

Overrides:

generateWhere in class AbstractAmberExpr

generateUpdateWhere

public void generateUpdateWhere(CharBuffer cb)

Generates the (update) literal.

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