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java.lang.Objectestraier.pure.Condition
Abstraction of search condition.
Field Summary | |
static int |
AGITO
option: check N-gram keys skipping by three |
static int |
FAST
option: check N-gram keys skipping by two |
static int |
NOIDF
option: without TF-IDF tuning |
static int |
SIMPLE
option: with the simplified phrase |
static int |
SURE
option: check every N-gram key |
static int |
USUAL
option: check N-gram keys skipping by one |
Constructor Summary | |
Condition()
Create a search condition object. |
Method Summary | |
void |
add_attr(java.lang.String expr)
Add an expression for an attribute. |
void |
set_auxiliary(int min)
Set permission to adopt result of the auxiliary index. |
void |
set_max(int max)
Set the maximum number of retrieval. |
void |
set_options(int options)
Set options of retrieval. |
void |
set_order(java.lang.String expr)
Set the order. |
void |
set_phrase(java.lang.String phrase)
Set the search phrase. |
void |
set_skip(int skip)
Set the number of skipped documents. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
public static int AGITO
public static int FAST
public static int NOIDF
public static int SIMPLE
public static int SURE
public static int USUAL
Constructor Detail |
public Condition()
Method Detail |
public void add_attr(java.lang.String expr)
expr
- an expression for an attribute.public void set_auxiliary(int min)
min
- the minimum hits to adopt result of the auxiliary index. If it is not more
than 0, the auxiliary index is not used. By default, it is 32.public void set_max(int max)
max
- the maximum number of retrieval. By default, the number of retrieval is not
limited.public void set_options(int options)
options
- options: `Condition.SURE' specifies that it checks every N-gram key,
`Condition.USUAL', which is the default, specifies that it checks N-gram keys with skipping
one key, `Condition.FAST' skips two keys, `Condition.AGITO' skips three keys,
`Condition.NOIDF' specifies not to perform TF-IDF tuning, `Condition.SIMPLE' specifies to
use simplified phrase. Each option can be specified at the same time by bitwise or. If
keys are skipped, though search speed is improved, the relevance ratio grows less.public void set_order(java.lang.String expr)
expr
- an expression for the order. By default, the order is by score descending.public void set_phrase(java.lang.String phrase)
phrase
- a search phrase.public void set_skip(int skip)
skip
- the number of documents to be skipped in the search result.
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