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java.lang.Object net.sf.basedb.core.query.ParameterExpression
public class ParameterExpression
Parameter expression. Used to be able to set a value in the query from the query object.
Expressions.parameter(String, Object, Type)
,
Query.setParameter(String, Object, Type)
Field Summary | |
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private Object |
defaultValue
|
private String |
name
|
private Type |
valueType
|
Constructor Summary | |
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ParameterExpression(String name,
Object defaultValue,
Type valueType)
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Method Summary | |
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boolean |
equals(Object other)
This expression is equal to another ParameterExpression if their names expressions are equal. |
Collection<? extends QueryElement> |
getChildren()
Get the children of this query element or null if it has no children. |
Object |
getDefaultValue()
Get the default value of the parameter. |
String |
getName()
Get the name of the parameter. |
Type |
getValueType()
Get the type of value. |
int |
hashCode()
|
String |
toQl(Query query,
DbControl dc)
Create a query language string of the query element. |
String |
toString()
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Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
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private final String name
private final Object defaultValue
private final Type valueType
Constructor Detail |
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public ParameterExpression(String name, Object defaultValue, Type valueType)
Method Detail |
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public String toQl(Query query, DbControl dc) throws BaseException
QueryElement
Query.getQueryType()
method to find out which query language is wanted
in case the element requires different syntax for different languages.
toQl
in interface QueryElement
query
- The query that is about to be executeddc
- The DbControl
object used to execute the query
BaseException
- If there is any other errorpublic Collection<? extends QueryElement> getChildren()
QueryElement
AddExpression
has two children, the expression
beeing added.
getChildren
in interface QueryElement
public String toString()
toString
in class Object
public boolean equals(Object other)
equals
in class Object
public int hashCode()
hashCode
in class Object
public String getName()
public Object getDefaultValue()
public Type getValueType()
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