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[Minor] Locator caches toString and hashcode

This commit is contained in:
Robert von Burg 2017-06-13 10:27:31 +02:00
parent 5bf7cd8b72
commit 79122f2887
1 changed files with 12 additions and 5 deletions
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17
li.strolch.model/src/main/java/li/strolch/model/Locator.java
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@ -55,6 +55,9 @@ public class Locator {
*/
private final List<String> pathElements;
private String asString;
private Integer hashcode;
/**
* Constructs a new {@link Locator} with the given list of path elements
*
@ -198,7 +201,9 @@ public class Locator {
*/
@Override
public String toString() {
return formatPath(this.pathElements);
if (this.asString == null)
this.asString = formatPath(this.pathElements);
return this.asString;
}
/**
@ -276,10 +281,12 @@ public class Locator {
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((this.pathElements == null) ? 0 : this.pathElements.hashCode());
return result;
if (this.hashcode == null) {
final int prime = 31;
this.hashcode = prime * 1 + ((this.pathElements == null) ? 0 : this.pathElements.hashCode());
}
return this.hashcode;
}
@Override