org.elasticsearch.common.property

クラス PropertyPlaceholder

java.lang.Object

org.elasticsearch.common.property.PropertyPlaceholder

public class PropertyPlaceholder
extends Object

Utility class for working with Strings that have placeholder values in them. A placeholder takes the form ${name}. Using PropertyPlaceholder these placeholders can be substituted for user-supplied values.

Values for substitution can be supplied using a Properties instance or using a PropertyPlaceholder.PlaceholderResolver.

ネストされたクラスのサマリー

ネストされたクラス

修飾子とタイプ	クラスと説明
static interface	PropertyPlaceholder.PlaceholderResolver Strategy interface used to resolve replacement values for placeholders contained in Strings.

コンストラクタのサマリー

コンストラクタ

コンストラクタと説明
PropertyPlaceholder(String placeholderPrefix, String placeholderSuffix) Creates a new PropertyPlaceholderHelper that uses the supplied prefix and suffix.
PropertyPlaceholder(String placeholderPrefix, String placeholderSuffix, boolean ignoreUnresolvablePlaceholders) Creates a new PropertyPlaceholderHelper that uses the supplied prefix and suffix.

メソッドのサマリー

修飾子とタイプ	メソッドと説明
protected String	parseStringValue(String strVal, PropertyPlaceholder.PlaceholderResolver placeholderResolver, Set<String> visitedPlaceholders)
String	replacePlaceholders(String value, PropertyPlaceholder.PlaceholderResolver placeholderResolver) Replaces all placeholders of format ${name} with the value returned from the supplied PropertyPlaceholder.PlaceholderResolver.

クラスから継承されたメソッド java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

コンストラクタの詳細

PropertyPlaceholder

public PropertyPlaceholder(String placeholderPrefix,
                           String placeholderSuffix)

Creates a new PropertyPlaceholderHelper that uses the supplied prefix and suffix. Unresolvable placeholders are ignored.

パラメータ:

placeholderPrefix - the prefix that denotes the start of a placeholder.

placeholderSuffix - the suffix that denotes the end of a placeholder.

PropertyPlaceholder

public PropertyPlaceholder(String placeholderPrefix,
                           String placeholderSuffix,
                           boolean ignoreUnresolvablePlaceholders)

Creates a new PropertyPlaceholderHelper that uses the supplied prefix and suffix.

パラメータ:

placeholderPrefix - the prefix that denotes the start of a placeholder.

placeholderSuffix - the suffix that denotes the end of a placeholder.

ignoreUnresolvablePlaceholders - indicates whether unresolvable placeholders should be ignored (true) or cause an exception (false).

メソッドの詳細

replacePlaceholders

public String replacePlaceholders(String value,
                                  PropertyPlaceholder.PlaceholderResolver placeholderResolver)

Replaces all placeholders of format ${name} with the value returned from the supplied PropertyPlaceholder.PlaceholderResolver.

パラメータ:

value - the value containing the placeholders to be replaced.

placeholderResolver - the PlaceholderResolver to use for replacement.

戻り値:

the supplied value with placeholders replaced inline.

parseStringValue

protected String parseStringValue(String strVal,
                                  PropertyPlaceholder.PlaceholderResolver placeholderResolver,
                                  Set<String> visitedPlaceholders)