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## org.apache.ivy.plugins.version
Class AbstractVersionMatcher

    java.lang.Object
      org.apache.ivy.plugins.version.AbstractVersionMatcher

All Implemented Interfaces:
  IvySettingsAware, VersionMatcher

Direct Known Subclasses:
  ChainVersionMatcher, ExactVersionMatcher, LatestVersionMatcher, PatternVersionMatcher, SubVersionMatcher, VersionRangeMatcher

    public abstract class AbstractVersionMatcher

extends java.lang.Object
implements VersionMatcher, IvySettingsAware

Constructor Summary
`AbstractVersionMatcher()`
`AbstractVersionMatcher(java.lang.String name)`

Method Summary
`boolean` | `accept(ModuleRevisionId askedMrid, ModuleDescriptor foundMD)` Indicates if this version matcher considers that the module found matches the asked one.
`int` | `compare(ModuleRevisionId askedMrid, ModuleRevisionId foundMrid, java.util.Comparator staticComparator)` This method should be overriden in most cases, because it uses the default contract to return 1 when it's not possible to know which revision is greater.
`java.lang.String` | `getName()` Returns the version matcher name identifying this version matcher
`IvySettings` | `getSettings()`
`boolean` | `needModuleDescriptor(ModuleRevisionId askedMrid, ModuleRevisionId foundMrid)` Indicates if this VersionMatcher needs module descriptors to determine if a module revision matches the asked one.
`void` | `setName(java.lang.String name)`
`void` | `setSettings(IvySettings settings)`
`java.lang.String` | `toString()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Methods inherited from interface org.apache.ivy.plugins.version.VersionMatcher
`accept, isDynamic`

Constructor Detail

### AbstractVersionMatcher

    public AbstractVersionMatcher()

### AbstractVersionMatcher

    public AbstractVersionMatcher(java.lang.String name)

Method Detail

### getName

    public java.lang.String getName()

  Description copied from interface: `VersionMatcher`
  Returns the version matcher name identifying this version matcher

  Specified by:
    `getName` in interface `VersionMatcher`
  Returns:
    the version matcher name identifying this version matcher

### setName

    public void setName(java.lang.String name)

### needModuleDescriptor

    public boolean needModuleDescriptor(ModuleRevisionId askedMrid,
                                        ModuleRevisionId foundMrid)

  Description copied from interface: `VersionMatcher`
  Indicates if this VersionMatcher needs module descriptors to determine if a module revision matches the asked one. Note that returning true in this method may imply big performance issues.

  Specified by:
    `needModuleDescriptor` in interface `VersionMatcher`
  Returns:

### accept

    public boolean accept(ModuleRevisionId askedMrid,
                          ModuleDescriptor foundMD)

  Description copied from interface: `VersionMatcher`
  Indicates if this version matcher considers that the module found matches the asked one. This method can be called even needModuleDescriptor(ModuleRevisionId askedMrid, ModuleRevisionId foundMrid) returns false, so it is required to implement it in any case, a usual default implementation being: return accept(askedMrid, foundMD.getResolvedModuleRevisionId());

  Specified by:
    `accept` in interface `VersionMatcher`
  Returns:

### compare

    public int compare(ModuleRevisionId askedMrid,
                       ModuleRevisionId foundMrid,
                       java.util.Comparator staticComparator)

  This method should be overriden in most cases, because it uses the default contract to return 1 when it's not possible to know which revision is greater.

  Specified by:
    `compare` in interface `VersionMatcher`
  Parameters:
    `askedMrid` - the dynamic revision to compare
    `foundMrid` - the static revision to compare
    `staticComparator` - a comparator which can be used to compare static revisions
  Returns:
    0 if it's not possible to know which one is greater, greater than 0 if askedMrid should be considered greater, lower than 0 if it can't be consider greater

### toString

    public java.lang.String toString()

  Overrides:
    `toString` in class `java.lang.Object`

### getSettings

    public IvySettings getSettings()

### setSettings

    public void setSettings(IvySettings settings)

  Specified by:
    `setSettings` in interface `IvySettingsAware`

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