com.cloudera.impala.util.PatternMatcher Class Reference

Collaboration diagram for com.cloudera.impala.util.PatternMatcher:

Public Member Functions
boolean	matches (String candidate)

Static Public Member Functions
static PatternMatcher	createHivePatternMatcher (String hivePattern)
static PatternMatcher	createJdbcPatternMatcher (String pattern)

Private Attributes
List< Pattern >	patterns_

Detailed Description

Utility class to handle pattern-matching for different types of patterns ( e.g. hive SHOW patterns, JDBC patterns). It maps those patterns onto the java regex pattern objects.

Definition at line 29 of file PatternMatcher.java.

Member Function Documentation

static PatternMatcher com.cloudera.impala.util.PatternMatcher.createHivePatternMatcher ( String  hivePattern )

inlinestatic

Creates a pattern matcher for hive patterns. The only metacharacters are '*' which matches any string of characters, and '|' which denotes choice. If hivePattern is null, all strings are considered to match. If it is the empty string, no strings match.

Definition at line 51 of file PatternMatcher.java.

static PatternMatcher com.cloudera.impala.util.PatternMatcher.createJdbcPatternMatcher ( String  pattern )

inlinestatic

Creates a matcher object for JDBC match strings.

Definition at line 71 of file PatternMatcher.java.

boolean com.cloudera.impala.util.PatternMatcher.matches ( String  candidate )

inline

Definition at line 35 of file PatternMatcher.java.

References com.cloudera.impala.util.PatternMatcher.patterns_.

Referenced by com.cloudera.impala.catalog.Catalog.filterStringsByPattern(), com.cloudera.impala.service.MetadataOp.getDbsMetadata(), and com.cloudera.impala.catalog.Db.getFunctions().

Member Data Documentation

List<Pattern> com.cloudera.impala.util.PatternMatcher.patterns_

private

Definition at line 32 of file PatternMatcher.java.

Referenced by com.cloudera.impala.util.PatternMatcher.matches().

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The documentation for this class was generated from the following file:

• fe/src/main/java/com/cloudera/impala/util/PatternMatcher.java