Package net.sf.basedb.core
Class DynamicRestriction
- java.lang.Object
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- net.sf.basedb.core.DynamicRestriction
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- All Implemented Interfaces:
QueryElement
,Restriction
class DynamicRestriction extends Object implements Restriction
Creates a restriction that compares a dynamic column with a constant value:tableAlias.column = value
orqueryRootAlias.column = value
- Version:
- 2.0
- Author:
- Nicklas
- Last modified
- $Date: 2012-09-14 09:28:35 +0200 (fr, 14 sep 2012) $
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Field Summary
Fields Modifier and Type Field Description private VirtualColumn
column
private VirtualTable
table
private int
value
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Constructor Summary
Constructors Constructor Description DynamicRestriction(VirtualColumn column, int value)
Create a new restriction for column in the root entity of the query:queryRootAlias.column = value
.DynamicRestriction(VirtualTable table, VirtualColumn column, int value)
Create a new restriction for column in a joined table:tableAlias.column = value
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
equals(Object other)
This restriction is equal to another DynamicRestriction if their table, column and values are equal.Collection<? extends QueryElement>
getChildren()
Get the children of this query element or null if it has no children.int
hashCode()
String
toQl(Query query, DbControl dc)
Create a query language string of the query element.String
toString()
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Field Detail
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table
private final VirtualTable table
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column
private final VirtualColumn column
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value
private final int value
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Constructor Detail
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DynamicRestriction
DynamicRestriction(VirtualColumn column, int value)
Create a new restriction for column in the root entity of the query:queryRootAlias.column = value
.- Parameters:
column
- The column to use in the restrictionvalue
- The value to look for
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DynamicRestriction
DynamicRestriction(VirtualTable table, VirtualColumn column, int value)
Create a new restriction for column in a joined table:tableAlias.column = value
. It is assumed that the table specified has been joined in the query.- Parameters:
table
- The table the column is located incolumn
- The column to use in the restrictionvalue
- The value to look for- See Also:
DynamicJoin
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Method Detail
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toQl
public String toQl(Query query, DbControl dc) throws BaseException
Description copied from interface:QueryElement
Create a query language string of the query element. Use theQuery.getQueryType()
method to find out which query language is wanted in case the element requires different syntax for different languages.- Specified by:
toQl
in interfaceQueryElement
- Parameters:
query
- The query that is about to be executeddc
- TheDbControl
object used to execute the query- Throws:
BaseException
- If there is any other error
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getChildren
public Collection<? extends QueryElement> getChildren()
Description copied from interface:QueryElement
Get the children of this query element or null if it has no children. For example theAddExpression
has two children, the expression beeing added.- Specified by:
getChildren
in interfaceQueryElement
- Returns:
- Always null
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equals
public boolean equals(Object other)
This restriction is equal to another DynamicRestriction if their table, column and values are equal.
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