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java.lang.Objectorg.apache.ojb.broker.query.SearchFilter
public abstract class SearchFilter
Class to build selection criteria for searches Search Filter Class (Abstract) This class builds a search filter tree, specifing how names and values are to be compared when searching a database. It just builds internal structures, and needs to be extended to return a search filter string or other object that can be used by the database to perform the actual search.
Field Summary | |
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static int |
AND
|
static int |
EQUAL
|
static int |
GREATER_EQUAL
|
static int |
GREATER_THAN
|
static int |
IN
|
static int |
LESS_EQUAL
|
static int |
LESS_THAN
|
static int |
LIKE
|
static int |
NOT
|
static int |
NOT_EQUAL
|
static int |
NOT_IN
|
static int |
OR
|
Constructor Summary | |
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SearchFilter()
Create an empty search filter. |
Method Summary | |
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void |
combine(SearchFilter new_filter,
int op)
Combine one other search filters with this one, using the specific operator. |
void |
combine(java.util.Vector new_filters,
int op)
Combine other search filters with this one, using the specific operator. |
void |
compareFilter(java.lang.String ElementName,
java.lang.String value,
int oper)
Change the search filter to one that compares an element name to a value. |
void |
matchList(java.lang.String ElementName,
int[] values,
int oper)
Change the search filter to one that specifies an element to not match one of a list of integer values. |
void |
matchList(java.lang.String ElementName,
java.lang.String[] values,
int oper)
Change the search filter to one that specifies an element to not match one of a list of values. |
void |
matchList(java.lang.String ElementName,
java.util.Vector values,
int oper)
Change the search filter to one that specifies an element to match or not match one of a list of values. |
void |
matchSet(java.util.Hashtable elements,
int combine_op,
int compare_op)
Change the search filter to one that specifies a set of elements and their values that must match, and the operator to use to combine the elements. |
void |
matchSet(java.lang.String[] ElementNames,
java.lang.String[] ElementValues,
int op)
Change the search filter to one that specifies a set of elements and their values that must match, and the operator to use to combine the elements. |
void |
matchValue(java.lang.String ElementName,
int value,
int oper)
----------------------------------------------------------- |
void |
matchValue(java.lang.String ElementName,
java.lang.String value,
int oper)
Change the search filter to one that specifies an element to not match one single value. |
abstract java.lang.String |
toString()
----------------------------------------------------------- |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static final int AND
public static final int OR
public static final int NOT
public static final int IN
public static final int NOT_IN
public static final int LIKE
public static final int EQUAL
public static final int NOT_EQUAL
public static final int LESS_THAN
public static final int GREATER_THAN
public static final int GREATER_EQUAL
public static final int LESS_EQUAL
Constructor Detail |
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public SearchFilter()
Method Detail |
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public void matchList(java.lang.String ElementName, java.util.Vector values, int oper)
ElementName
- is the name of the element to be matchedvalues
- is a vector of possible matchesoper
- is the IN or NOT_IN operator to indicate how to matchepublic void matchList(java.lang.String ElementName, java.lang.String[] values, int oper)
ElementName
- is the name of the element to be matchedvalues
- is an array of possible matchesoper
- is the IN or NOT_IN operator to indicate how to matchepublic void matchList(java.lang.String ElementName, int[] values, int oper)
ElementName
- is the name of the element to be matchedvalues
- is an array of possible integer matchesoper
- is the IN or NOT_IN operator to indicate how to matchepublic void matchValue(java.lang.String ElementName, java.lang.String value, int oper)
ElementName
- is the name of the element to be matchedvalue
- is the value to not be matchedoper
- is the IN or NOT_IN operator to indicate how to matchepublic void matchValue(java.lang.String ElementName, int value, int oper)
ElementName
- value
- oper
- public void compareFilter(java.lang.String ElementName, java.lang.String value, int oper) throws DBException
ElementName
- is the name of the element to be testedvalue
- is the value to be compared againstoper
- is the binary comparison operator to be used
DBException
public void matchSet(java.util.Hashtable elements, int combine_op, int compare_op) throws DBException
elements
- is a hashtable holding key-value pairscombine_op
- is the logical operator to be used to combine the comparisonscompare_op
- is the binary operator to be used for the comparisons
DBException
public void matchSet(java.lang.String[] ElementNames, java.lang.String[] ElementValues, int op) throws DBException
ElementNames
- is an array of names of elements to be testedElementValues
- is an array of values for the corresponding elementop
- is the logical operator to be used to combine the comparisons
DBException
public void combine(java.util.Vector new_filters, int op) throws DBException
new_filters
- is a vector of SearchFilter classes to be combinedop
- is the logical operator to be used to combine the filters
DBException
public void combine(SearchFilter new_filter, int op) throws DBException
new_filter
- is the SearchFilter class to be combinedop
- is the logical operator to be used to combine the filters
DBException
public abstract java.lang.String toString()
toString
in class java.lang.Object
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